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CVE-2026-46331 (GCVE-0-2026-46331)
Vulnerability from cvelistv5 – Published: 2026-06-16 06:26 – Updated: 2026-08-05 12:31
VLAI
EPSS
VEX
Title
net/sched: fix pedit partial COW leading to page cache corruption
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/sched: fix pedit partial COW leading to page cache corruption
tcf_pedit_act() computes the COW range for skb_ensure_writable()
once before the key loop using tcfp_off_max_hint, but the hint does
not account for the runtime header offset added by typed keys. This
can leave part of the write region un-COW'd.
Fix by moving skb_ensure_writable() inside the per-key loop where
the actual write offset is known, and add overflow checking on the
offset arithmetic. For negative offsets (e.g. Ethernet header edits
at ingress), use skb_cow() to COW the headroom instead. Guard
offset_valid() against INT_MIN, where negation is undefined.
Severity
7.8 (High)
6.7 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-29 00:00 UTC
Assigner
References
44 references
Impacted products
39 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
abe35bf3be51482593076d516a680d79e5fbc8e1 , < 544d857b42a1734b923040e13aa61a6fd4746cf2
(git)
Affected: b773640d5bb9e2acfd91e2695717af04d47aa116 , < d5d01d35a5a7d36f7cb679b67d9cbdd5205672dc (git) Affected: 8b796475fd7882663a870456466a4fb315cc1bd6 , < a071e057518decc5e3bec89855758f5f8786f2c5 (git) Affected: 8b796475fd7882663a870456466a4fb315cc1bd6 , < b685d6ef6f07a3b5ce814565a25f39f2157538a5 (git) Affected: 8b796475fd7882663a870456466a4fb315cc1bd6 , < 2bec122b9fb91507a758ab5e3e5c4fbe7cb3f61b (git) Affected: 8b796475fd7882663a870456466a4fb315cc1bd6 , < b198ed4e52580a7238c7c7082f03906f8b310313 (git) Affected: 8b796475fd7882663a870456466a4fb315cc1bd6 , < 3dee9d0c198faeb95d052c1b94c2958751a28512 (git) Affected: 8b796475fd7882663a870456466a4fb315cc1bd6 , < 899ee91156e57784090c5565e4f31bd7dbffbc5a (git) Affected: d0c38a914b0c4c21d553da801003d36979016726 (git) Affected: 2ec2dd7d51a9320151f275ddbb2b53260fb32ca1 (git) Affected: c19cc520b3d69904e9518d401ad0df7f4702aca0 (git) Affected: 5.10.117 , < 5.10.260 (semver) Affected: 5.15.41 , < 5.15.211 (semver) Affected: 4.19.244 , < 4.20 (semver) Affected: 5.4.195 , < 5.5 (semver) Affected: 5.17.9 , < 5.18 (semver) |
guessed | |
| Linux | Linux |
Affected:
5.18
Unaffected: 0 , < 5.18 (semver) Unaffected: 5.10.260 , ≤ 5.10.* (semver) Unaffected: 5.15.211 , ≤ 5.15.* (semver) Unaffected: 6.1.177 , ≤ 6.1.* (semver) Unaffected: 6.6.144 , ≤ 6.6.* (semver) Unaffected: 6.12.94 , ≤ 6.12.* (semver) Unaffected: 6.18.36 , ≤ 6.18.* (semver) Unaffected: 7.0.13 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix) |
guessed | |
| Red Hat | NVIDIA for RHEL 10 |
Unaffected:
0:6.12.0-212.11.el10nv , < *
(rpm)
Unaffected: 0:6.12.0-231.13.el10nv , < * (rpm) cpe:/a:redhat:enterprise_linux_nvidia:10::el10 |
||
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
0:6.12.0-211.26.1.el10_2 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.2 |
||
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10.2
|
||
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support |
Unaffected:
0:6.12.0-55.82.1.el10_0 , < *
(rpm)
cpe:/o:redhat:enterprise_linux_eus:10.0 |
||
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:4.18.0-553.136.1.rt7.477.el8_10 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8::nfv |
||
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:4.18.0-553.136.1.el8_10 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:8 |
||
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
||
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support |
Unaffected:
0:4.18.0-305.195.1.el8_4 , < *
(rpm)
cpe:/o:redhat:rhel_aus:8.4 |
||
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On |
Unaffected:
0:4.18.0-305.195.1.el8_4 , < *
(rpm)
cpe:/o:redhat:rhel_eus_long_life:8.4 |
||
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support |
Unaffected:
0:4.18.0-372.197.1.el8_6 , < *
(rpm)
cpe:/o:redhat:rhel_aus:8.6 |
||
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On |
Unaffected:
0:4.18.0-372.197.1.el8_6 , < *
(rpm)
cpe:/o:redhat:rhel_eus_long_life:8.6 |
||
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service |
Unaffected:
0:4.18.0-477.148.1.el8_8 , < *
(rpm)
cpe:/o:redhat:rhel_tus:8.8 |
||
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions |
Unaffected:
0:4.18.0-477.148.1.el8_8 , < *
(rpm)
cpe:/o:redhat:rhel_e4s:8.8 |
||
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions |
cpe:/o:redhat:rhel_e4s:8.8
|
||
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:5.14.0-687.17.1.el9_8 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:enterprise_linux:9 |
||
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
||
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions |
Unaffected:
0:5.14.0-284.177.1.el9_2 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.2 |
||
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions |
Unaffected:
0:5.14.0-284.177.1.rt14.462.el9_2 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.2::nfv |
||
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions |
cpe:/o:redhat:rhel_e4s:9.2
|
||
| Red Hat | Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions |
Unaffected:
0:5.14.0-427.134.1.el9_4 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.4 |
||
| Red Hat | Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions |
cpe:/o:redhat:rhel_e4s:9.4
|
||
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support |
Unaffected:
0:5.14.0-570.123.1.el9_6 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.6 |
||
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support |
cpe:/o:redhat:rhel_eus:9.6
|
||
| Red Hat | Red Hat OpenShift Container Platform 4.12 |
Unaffected:
412.86.202606251120-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.12::el8 |
||
| Red Hat | Red Hat OpenShift Container Platform 4.13 |
Unaffected:
413.92.202607141229-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.13::el9 |
||
| Red Hat | Red Hat OpenShift Container Platform 4.14 |
Unaffected:
414.92.202606231112-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.14::el9 |
||
| Red Hat | Red Hat OpenShift Container Platform 4.15 |
Unaffected:
415.92.202606200237-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.15::el9 |
||
| Red Hat | Red Hat OpenShift Container Platform 4.16 |
Unaffected:
416.94.202606230218-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.16::el9 |
||
| Red Hat | Red Hat OpenShift Container Platform 4.17 |
Unaffected:
417.94.202606250942-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.17::el9 |
||
| Red Hat | Red Hat OpenShift Container Platform 4.18 |
Unaffected:
418.94.202606221349-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.18::el9 |
||
| Red Hat | Red Hat OpenShift Container Platform 4.19 |
Unaffected:
4.19.9.6.202606241344-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.19::el9 |
||
| Red Hat | Red Hat OpenShift Container Platform 4.20 |
Unaffected:
4.20.9.6.202606241928-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.20::el9 |
||
| Red Hat | Red Hat OpenShift Container Platform 4.21 |
Unaffected:
4.21.9.6.202606241859-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.21::el9 |
||
| Red Hat | Red Hat OpenShift Container Platform 4.22 |
Unaffected:
4.22.9.8.202606230855-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.22::el9 |
||
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
||
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
||
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-46331",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-29T00:00:00+00:00",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-787",
"description": "CWE-787 Out-of-bounds Write",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-190",
"description": "CWE-190 Integer Overflow or Wraparound",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-30T03:55:32.379Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/sgkdev/packet_edit_meme/tree/main"
}
],
"title": "CISA ADP Vulnrichment"
},
{
"affected": [
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
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],
"defaultStatus": "affected",
"packageName": "kernel",
"product": "NVIDIA for RHEL 10",
"vendor": "Red Hat",
"versions": [
{
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"status": "unaffected",
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"versionType": "rpm"
},
{
"lessThan": "*",
"status": "unaffected",
"version": "0:6.12.0-231.13.el10nv",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
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],
"defaultStatus": "affected",
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},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10.2"
],
"defaultStatus": "unaffected",
"packageName": "kpatch-patch",
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"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux_eus:10.0"
],
"defaultStatus": "affected",
"packageName": "kernel",
"product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
"vendor": "Red Hat",
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"lessThan": "*",
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"version": "0:6.12.0-55.82.1.el10_0",
"versionType": "rpm"
}
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},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:8::nfv"
],
"defaultStatus": "affected",
"packageName": "kernel-rt",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:4.18.0-553.136.1.rt7.477.el8_10",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
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],
"defaultStatus": "affected",
"packageName": "kernel",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:4.18.0-553.136.1.el8_10",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
],
"defaultStatus": "unaffected",
"packageName": "kpatch-patch",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:rhel_aus:8.4"
],
"defaultStatus": "affected",
"packageName": "kernel",
"product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:4.18.0-305.195.1.el8_4",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:rhel_eus_long_life:8.4"
],
"defaultStatus": "affected",
"packageName": "kernel",
"product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
"vendor": "Red Hat",
"versions": [
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}
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},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
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"defaultStatus": "affected",
"packageName": "kernel",
"product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
"vendor": "Red Hat",
"versions": [
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{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:rhel_eus_long_life:8.6"
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"defaultStatus": "affected",
"packageName": "kernel",
"product": "Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On",
"vendor": "Red Hat",
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"lessThan": "*",
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"version": "0:4.18.0-372.197.1.el8_6",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:rhel_tus:8.8"
],
"defaultStatus": "affected",
"packageName": "kernel",
"product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
"vendor": "Red Hat",
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{
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"cpes": [
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"defaultStatus": "affected",
"packageName": "kernel",
"product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
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"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:rhel_e4s:8.8"
],
"defaultStatus": "unaffected",
"packageName": "kpatch-patch",
"product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:9",
"cpe:/o:redhat:enterprise_linux:9"
],
"defaultStatus": "affected",
"packageName": "kernel",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:5.14.0-687.17.1.el9_8",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:9"
],
"defaultStatus": "unaffected",
"packageName": "kpatch-patch",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.2"
],
"defaultStatus": "affected",
"packageName": "kernel",
"product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:5.14.0-284.177.1.el9_2",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.2::nfv"
],
"defaultStatus": "affected",
"packageName": "kernel-rt",
"product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:5.14.0-284.177.1.rt14.462.el9_2",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:rhel_e4s:9.2"
],
"defaultStatus": "unaffected",
"packageName": "kpatch-patch",
"product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.4"
],
"defaultStatus": "affected",
"packageName": "kernel",
"product": "Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:5.14.0-427.134.1.el9_4",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:rhel_e4s:9.4"
],
"defaultStatus": "unaffected",
"packageName": "kpatch-patch",
"product": "Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_eus:9.6"
],
"defaultStatus": "affected",
"packageName": "kernel",
"product": "Red Hat Enterprise Linux 9.6 Extended Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:5.14.0-570.123.1.el9_6",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:rhel_eus:9.6"
],
"defaultStatus": "unaffected",
"packageName": "kpatch-patch",
"product": "Red Hat Enterprise Linux 9.6 Extended Update Support",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4.12::el8"
],
"defaultStatus": "affected",
"packageName": "rhcos",
"product": "Red Hat OpenShift Container Platform 4.12",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "412.86.202606251120-0",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4.13::el9"
],
"defaultStatus": "affected",
"packageName": "rhcos",
"product": "Red Hat OpenShift Container Platform 4.13",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "413.92.202607141229-0",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4.14::el9"
],
"defaultStatus": "affected",
"packageName": "rhcos",
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"value": "AV:L - The vulnerable pedit action is reached through local tc/rtnetlink configuration and local packet generation, not by unauthenticated network input alone. Even if remote traffic can traverse an already configured pedit rule, creating the exploitable action is a local operation.\nAC:L - There is no attacker-uncontrolled race; the attacker can choose the pedit key, header type, offset, and traffic shape. The partial COW condition is deterministic once suitable shared or page-cache-backed skbs are generated.\nPR:L - Installing the pedit action through RTM_NEWTFILTER requires CAP_NET_ADMIN in the network namespace. With unprivileged user namespaces, a basic local user can obtain namespace CAP_NET_ADMIN, so this is Low rather than High.\nUI:N - The attacker can configure the tc action and generate the triggering traffic without requiring any victim action. No user needs to open a file, mount a filesystem, or interact with crafted data.\nS:U - The vulnerability is in the kernel networking subsystem and impacts kernel-managed memory and page cache within the same security authority. It is a standard local kernel privilege-escalation/data-corruption issue, not a VM escape or separate-scope boundary bypass.\nC:H - The bug permits corruption of shared skb/page-cache memory outside the intended COW range, which is kernel memory/data corruption. Such corruption is defensibly usable for privilege escalation, after which protected information can be read.\nI:H - The vulnerable path gives attacker-influenced writes into shared page-cache-backed packet data that should have been private. This can corrupt protected data or code pages and is defensibly a high-integrity arbitrary data modification primitive.\nA:H - Repeated page cache or kernel memory corruption can crash the kernel, corrupt critical cached files, or destabilize networking and userspace execution. A kernel crash or system-wide corruption warrants High availability impact."
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"source": "Red Hat CSAF VEX",
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"title": "kernel: net/sched: act_pedit: extend the writable skb range per key",
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"title": "SUSE CVE CVE-2026-46331",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-46331.json",
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}
RHSA-2026:33219
Vulnerability from csaf_redhat - Published: 2026-06-29 19:44 - Updated: 2026-08-21 12:45Summary
Red Hat Security Advisory: kpatch-patch-4_18_0-477_107_1, kpatch-patch-4_18_0-477_120_1, kpatch-patch-4_18_0-477_130_1, kpatch-patch-4_18_0-477_143_1, and kpatch-patch-4_18_0-477_97_1 security update
Severity
Important
Notes
Topic: An update for multiple packages is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: This is a kernel live patch module which can be loaded by the kpatch command line utility to modify the code of a running kernel. This patch module is targeted for kernel-4.18.0-477.97.1.el8_8.
Security Fix(es):
* kernel: net/sched: act_pedit: extend the writable skb range per key (CVE-2026-46331)
* kernel: Linux kernel: smb: client: reject userspace cifs.spnego descriptions (CVE-2026-46243)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A privilege escalation vulnerability was found in the Linux kernel's CIFS client implementation. This could allow a local attacker to impersonate other users, bypass authentication in SMB mount operations, and potentially gain unauthorized access to network file shares or escalate privileges.
7.8 (High)
Affected products
Fixed
35 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_107_1-0:1-8.el8_8.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_107_1-0:1-8.el8_8.src | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_107_1-0:1-8.el8_8.x86_64 | — |
Vendor Fix
fix
Workaround
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|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_107_1-debuginfo-0:1-8.el8_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_107_1-debuginfo-0:1-8.el8_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_107_1-debugsource-0:1-8.el8_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_107_1-debugsource-0:1-8.el8_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_120_1-0:1-7.el8_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_120_1-0:1-7.el8_8.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_120_1-0:1-7.el8_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_120_1-debuginfo-0:1-7.el8_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_120_1-debuginfo-0:1-7.el8_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_120_1-debugsource-0:1-7.el8_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_120_1-debugsource-0:1-7.el8_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_130_1-0:1-5.el8_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_130_1-0:1-5.el8_8.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_130_1-0:1-5.el8_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_130_1-debuginfo-0:1-5.el8_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_130_1-debuginfo-0:1-5.el8_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_130_1-debugsource-0:1-5.el8_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_130_1-debugsource-0:1-5.el8_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_143_1-0:1-2.el8_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_143_1-0:1-2.el8_8.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_143_1-0:1-2.el8_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_143_1-debuginfo-0:1-2.el8_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_143_1-debuginfo-0:1-2.el8_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_143_1-debugsource-0:1-2.el8_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_143_1-debugsource-0:1-2.el8_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_97_1-0:1-12.el8_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_97_1-0:1-12.el8_8.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_97_1-0:1-12.el8_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_97_1-debuginfo-0:1-12.el8_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_97_1-debuginfo-0:1-12.el8_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_97_1-debugsource-0:1-12.el8_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_97_1-debugsource-0:1-12.el8_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
A flaw was found in the Linux kernel's traffic control packet editing (pedit) subsystem. In tcf_pedit_act(), the copy-on-write (COW) range for skb_ensure_writable() is computed once before iterating over edit keys, but the calculation does not account for runtime header offsets added by typed keys. This can leave part of the target write region without a proper copy-on-write, leading to an out-of-bounds write that corrupts page cache memory. A local attacker with the ability to configure traffic control rules could exploit this to escalate privileges or crash the system.
6.7 (Medium)
Affected products
Fixed
35 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_107_1-0:1-8.el8_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_107_1-0:1-8.el8_8.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_107_1-0:1-8.el8_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_107_1-debuginfo-0:1-8.el8_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_107_1-debuginfo-0:1-8.el8_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_107_1-debugsource-0:1-8.el8_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_107_1-debugsource-0:1-8.el8_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_120_1-0:1-7.el8_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_120_1-0:1-7.el8_8.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_120_1-0:1-7.el8_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_120_1-debuginfo-0:1-7.el8_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_120_1-debuginfo-0:1-7.el8_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_120_1-debugsource-0:1-7.el8_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_120_1-debugsource-0:1-7.el8_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_130_1-0:1-5.el8_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_130_1-0:1-5.el8_8.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_130_1-0:1-5.el8_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_130_1-debuginfo-0:1-5.el8_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_130_1-debuginfo-0:1-5.el8_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_130_1-debugsource-0:1-5.el8_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_130_1-debugsource-0:1-5.el8_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_143_1-0:1-2.el8_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_143_1-0:1-2.el8_8.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_143_1-0:1-2.el8_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_143_1-debuginfo-0:1-2.el8_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_143_1-debuginfo-0:1-2.el8_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_143_1-debugsource-0:1-2.el8_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_143_1-debugsource-0:1-2.el8_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_97_1-0:1-12.el8_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_97_1-0:1-12.el8_8.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_97_1-0:1-12.el8_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_97_1-debuginfo-0:1-12.el8_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_97_1-debuginfo-0:1-12.el8_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_97_1-debugsource-0:1-12.el8_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.E4S:kpatch-patch-4_18_0-477_97_1-debugsource-0:1-12.el8_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
References
18 references
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"text": "A privilege escalation vulnerability was found in the Linux kernel\u0027s CIFS client implementation. This could allow a local attacker to impersonate other users, bypass authentication in SMB mount operations, and potentially gain unauthorized access to network file shares or escalate privileges.",
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"text": "kernel: Linux kernel: smb: client: reject userspace cifs.spnego descriptions",
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"text": "This issue is classified as Important severity primarily because a low-privileged local user can achieve full privilege escalation to root without any user interaction. The attack requires local access, which prevents remote exploitation and is the primary factor keeping the rating at Important rather than Critical.\n\nExploitation requires three components to be present on the system: the `cifs` kernel module (loaded or loadable), the `cifs-utils` package with its default `cifs.spnego` request-key rule, and the ability to create unprivileged user and mount namespaces. All three must be present for the attack chain to succeed. Environments that do not use SMB/CIFS file shares or Active Directory integration are unlikely to have `cifs-utils` installed, reducing their exposure.\n\nIn OpenShift Container Platform 4, this flaw is rated Low. The default `restricted-v2` Security Context Constraint (SCC) sets `allowPrivilegeEscalation: false` on all pods, which causes the kernel to ignore setuid file bits, preventing privilege escalation. Under non-default SCCs such as `anyuid` that permit privilege escalation, the vulnerability is constrained by PID and mount namespace isolation to the container\u0027s own filesystem. An attacker would only be able to escalate privileges within the container, not on the host or across pods.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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{
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{
"category": "description",
"text": "A flaw was found in the Linux kernel\u0027s traffic control packet editing (pedit) subsystem. In tcf_pedit_act(), the copy-on-write (COW) range for skb_ensure_writable() is computed once before iterating over edit keys, but the calculation does not account for runtime header offsets added by typed keys. This can leave part of the target write region without a proper copy-on-write, leading to an out-of-bounds write that corrupts page cache memory. A local attacker with the ability to configure traffic control rules could exploit this to escalate privileges or crash the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: net/sched: act_pedit: extend the writable skb range per key",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat rates this flaw as Important severity.\n\nThis vulnerability is in the kernel\u0027s traffic control (tc) pedit action, which requires CAP_NET_ADMIN capability to configure. By default in Red Hat Enterprise Linux, this limits exploitation to the root user or processes explicitly granted network administration capabilities. However, in some circumstances unprivileged users may obtain CAP_NET_ADMIN within user namespaces. Successful exploitation could lead to arbitrary code execution in kernel context or a system crash.\n\nRed Hat Enterprise Linux 7 and earlier are not affected. Within OpenShift Container Platform, the vulnerable module is not loaded by default, reducing the severity to Low.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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},
{
"category": "external",
"summary": "RHBZ#2479492",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2479492"
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{
"category": "external",
"summary": "RHSB-2026-008",
"url": "https://access.redhat.com/security/vulnerabilities/RHSB-2026-008"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-46331",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46331"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-46331",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46331"
},
{
"category": "external",
"summary": "https://lore.kernel.org/netdev/20260516162825.1480113-1-rollkingzzc@gmail.com/",
"url": "https://lore.kernel.org/netdev/20260516162825.1480113-1-rollkingzzc@gmail.com/"
}
],
"release_date": "2026-05-18T04:04:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-06-29T19:44:44+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:33219"
},
{
"category": "workaround",
"details": "See the security bulletin for a detailed mitigation procedure.",
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{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
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],
"title": "kernel: net/sched: act_pedit: extend the writable skb range per key"
}
]
}
RHSA-2026:33220
Vulnerability from csaf_redhat - Published: 2026-06-29 19:54 - Updated: 2026-08-21 12:45Summary
Red Hat Security Advisory: kpatch-patch-4_18_0-553_109_1, kpatch-patch-4_18_0-553_125_1, kpatch-patch-4_18_0-553_53_1, kpatch-patch-4_18_0-553_72_1, and kpatch-patch-4_18_0-553_85_1 security update
Severity
Important
Notes
Topic: An update for multiple packages is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: This is a kernel live patch module which can be loaded by the kpatch command line utility to modify the code of a running kernel. This patch module is targeted for kernel-4.18.0-553.53.1.el8_10.
Security Fix(es):
* kernel: net/sched: act_pedit: extend the writable skb range per key (CVE-2026-46331)
* kernel: Linux kernel: smb: client: reject userspace cifs.spnego descriptions (CVE-2026-46243)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A privilege escalation vulnerability was found in the Linux kernel's CIFS client implementation. This could allow a local attacker to impersonate other users, bypass authentication in SMB mount operations, and potentially gain unauthorized access to network file shares or escalate privileges.
7.8 (High)
Affected products
Fixed
35 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_109_1-0:1-5.el8_10.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_109_1-0:1-5.el8_10.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_109_1-0:1-5.el8_10.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_109_1-debuginfo-0:1-5.el8_10.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_109_1-debuginfo-0:1-5.el8_10.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_109_1-debugsource-0:1-5.el8_10.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_109_1-debugsource-0:1-5.el8_10.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_125_1-0:1-2.el8_10.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_125_1-0:1-2.el8_10.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_125_1-0:1-2.el8_10.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_125_1-debuginfo-0:1-2.el8_10.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_125_1-debuginfo-0:1-2.el8_10.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_125_1-debugsource-0:1-2.el8_10.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_125_1-debugsource-0:1-2.el8_10.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_53_1-0:1-12.el8_10.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_53_1-0:1-12.el8_10.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_53_1-0:1-12.el8_10.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_53_1-debuginfo-0:1-12.el8_10.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_53_1-debuginfo-0:1-12.el8_10.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_53_1-debugsource-0:1-12.el8_10.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_53_1-debugsource-0:1-12.el8_10.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_72_1-0:1-9.el8_10.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_72_1-0:1-9.el8_10.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_72_1-0:1-9.el8_10.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_72_1-debuginfo-0:1-9.el8_10.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_72_1-debuginfo-0:1-9.el8_10.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_72_1-debugsource-0:1-9.el8_10.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_72_1-debugsource-0:1-9.el8_10.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_85_1-0:1-7.el8_10.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_85_1-0:1-7.el8_10.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_85_1-0:1-7.el8_10.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_85_1-debuginfo-0:1-7.el8_10.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_85_1-debuginfo-0:1-7.el8_10.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_85_1-debugsource-0:1-7.el8_10.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_85_1-debugsource-0:1-7.el8_10.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
A flaw was found in the Linux kernel's traffic control packet editing (pedit) subsystem. In tcf_pedit_act(), the copy-on-write (COW) range for skb_ensure_writable() is computed once before iterating over edit keys, but the calculation does not account for runtime header offsets added by typed keys. This can leave part of the target write region without a proper copy-on-write, leading to an out-of-bounds write that corrupts page cache memory. A local attacker with the ability to configure traffic control rules could exploit this to escalate privileges or crash the system.
6.7 (Medium)
Affected products
Fixed
35 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_109_1-0:1-5.el8_10.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_109_1-0:1-5.el8_10.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_109_1-0:1-5.el8_10.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_109_1-debuginfo-0:1-5.el8_10.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_109_1-debuginfo-0:1-5.el8_10.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_109_1-debugsource-0:1-5.el8_10.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_109_1-debugsource-0:1-5.el8_10.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_125_1-0:1-2.el8_10.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_125_1-0:1-2.el8_10.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_125_1-0:1-2.el8_10.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_125_1-debuginfo-0:1-2.el8_10.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_125_1-debuginfo-0:1-2.el8_10.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_125_1-debugsource-0:1-2.el8_10.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_125_1-debugsource-0:1-2.el8_10.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_53_1-0:1-12.el8_10.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_53_1-0:1-12.el8_10.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_53_1-0:1-12.el8_10.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_53_1-debuginfo-0:1-12.el8_10.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_53_1-debuginfo-0:1-12.el8_10.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_53_1-debugsource-0:1-12.el8_10.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_53_1-debugsource-0:1-12.el8_10.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_72_1-0:1-9.el8_10.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_72_1-0:1-9.el8_10.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_72_1-0:1-9.el8_10.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_72_1-debuginfo-0:1-9.el8_10.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_72_1-debuginfo-0:1-9.el8_10.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_72_1-debugsource-0:1-9.el8_10.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_72_1-debugsource-0:1-9.el8_10.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_85_1-0:1-7.el8_10.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_85_1-0:1-7.el8_10.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_85_1-0:1-7.el8_10.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_85_1-debuginfo-0:1-7.el8_10.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_85_1-debuginfo-0:1-7.el8_10.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_85_1-debugsource-0:1-7.el8_10.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.10.0.Z.MAIN.EUS:kpatch-patch-4_18_0-553_85_1-debugsource-0:1-7.el8_10.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
References
18 references
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"text": "kernel: net/sched: act_pedit: extend the writable skb range per key",
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"category": "other",
"text": "Red Hat rates this flaw as Important severity.\n\nThis vulnerability is in the kernel\u0027s traffic control (tc) pedit action, which requires CAP_NET_ADMIN capability to configure. By default in Red Hat Enterprise Linux, this limits exploitation to the root user or processes explicitly granted network administration capabilities. However, in some circumstances unprivileged users may obtain CAP_NET_ADMIN within user namespaces. Successful exploitation could lead to arbitrary code execution in kernel context or a system crash.\n\nRed Hat Enterprise Linux 7 and earlier are not affected. Within OpenShift Container Platform, the vulnerable module is not loaded by default, reducing the severity to Low.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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{
"category": "external",
"summary": "RHSB-2026-008",
"url": "https://access.redhat.com/security/vulnerabilities/RHSB-2026-008"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-46331",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46331"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-46331",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46331"
},
{
"category": "external",
"summary": "https://lore.kernel.org/netdev/20260516162825.1480113-1-rollkingzzc@gmail.com/",
"url": "https://lore.kernel.org/netdev/20260516162825.1480113-1-rollkingzzc@gmail.com/"
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"category": "vendor_fix",
"date": "2026-06-29T19:54:59+00:00",
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"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:33220"
},
{
"category": "workaround",
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"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
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"title": "kernel: net/sched: act_pedit: extend the writable skb range per key"
}
]
}
RHSA-2026:33221
Vulnerability from csaf_redhat - Published: 2026-06-29 19:33 - Updated: 2026-08-21 12:45Summary
Red Hat Security Advisory: kpatch-patch-5_14_0-284_117_1, kpatch-patch-5_14_0-284_134_1, kpatch-patch-5_14_0-284_148_1, kpatch-patch-5_14_0-284_158_1, and kpatch-patch-5_14_0-284_172_1 security update
Severity
Important
Notes
Topic: An update for multiple packages is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: This is a kernel live patch module which can be loaded by the kpatch command line utility to modify the code of a running kernel. This patch module is targeted for kernel-5.14.0-284.117.1.el9_2.
Security Fix(es):
* kernel: net/sched: act_pedit: extend the writable skb range per key (CVE-2026-46331)
* kernel: Linux kernel: smb: client: reject userspace cifs.spnego descriptions (CVE-2026-46243)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A privilege escalation vulnerability was found in the Linux kernel's CIFS client implementation. This could allow a local attacker to impersonate other users, bypass authentication in SMB mount operations, and potentially gain unauthorized access to network file shares or escalate privileges.
7.8 (High)
Affected products
Fixed
35 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-0:1-15.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-0:1-15.el9_2.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-0:1-15.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-debuginfo-0:1-15.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-debuginfo-0:1-15.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-debugsource-0:1-15.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-debugsource-0:1-15.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-0:1-9.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-0:1-9.el9_2.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-0:1-9.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-debuginfo-0:1-9.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-debuginfo-0:1-9.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-debugsource-0:1-9.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-debugsource-0:1-9.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-0:1-7.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-0:1-7.el9_2.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-0:1-7.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-debuginfo-0:1-7.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-debuginfo-0:1-7.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-debugsource-0:1-7.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-debugsource-0:1-7.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-0:1-5.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-0:1-5.el9_2.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-0:1-5.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-debuginfo-0:1-5.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-debuginfo-0:1-5.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-debugsource-0:1-5.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-debugsource-0:1-5.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-0:1-2.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
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|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-0:1-2.el9_2.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-0:1-2.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-debuginfo-0:1-2.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
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|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-debuginfo-0:1-2.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-debugsource-0:1-2.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-debugsource-0:1-2.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
A flaw was found in the Linux kernel's traffic control packet editing (pedit) subsystem. In tcf_pedit_act(), the copy-on-write (COW) range for skb_ensure_writable() is computed once before iterating over edit keys, but the calculation does not account for runtime header offsets added by typed keys. This can leave part of the target write region without a proper copy-on-write, leading to an out-of-bounds write that corrupts page cache memory. A local attacker with the ability to configure traffic control rules could exploit this to escalate privileges or crash the system.
6.7 (Medium)
Affected products
Fixed
35 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-0:1-15.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-0:1-15.el9_2.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-0:1-15.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-debuginfo-0:1-15.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-debuginfo-0:1-15.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-debugsource-0:1-15.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-debugsource-0:1-15.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-0:1-9.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-0:1-9.el9_2.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-0:1-9.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-debuginfo-0:1-9.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-debuginfo-0:1-9.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-debugsource-0:1-9.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-debugsource-0:1-9.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-0:1-7.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-0:1-7.el9_2.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-0:1-7.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-debuginfo-0:1-7.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-debuginfo-0:1-7.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-debugsource-0:1-7.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-debugsource-0:1-7.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-0:1-5.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-0:1-5.el9_2.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-0:1-5.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-debuginfo-0:1-5.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-debuginfo-0:1-5.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-debugsource-0:1-5.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-debugsource-0:1-5.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-0:1-2.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-0:1-2.el9_2.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-0:1-2.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-debuginfo-0:1-2.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-debuginfo-0:1-2.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-debugsource-0:1-2.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-debugsource-0:1-2.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
References
18 references
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"text": "A privilege escalation vulnerability was found in the Linux kernel\u0027s CIFS client implementation. This could allow a local attacker to impersonate other users, bypass authentication in SMB mount operations, and potentially gain unauthorized access to network file shares or escalate privileges.",
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"text": "kernel: Linux kernel: smb: client: reject userspace cifs.spnego descriptions",
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"text": "This issue is classified as Important severity primarily because a low-privileged local user can achieve full privilege escalation to root without any user interaction. The attack requires local access, which prevents remote exploitation and is the primary factor keeping the rating at Important rather than Critical.\n\nExploitation requires three components to be present on the system: the `cifs` kernel module (loaded or loadable), the `cifs-utils` package with its default `cifs.spnego` request-key rule, and the ability to create unprivileged user and mount namespaces. All three must be present for the attack chain to succeed. Environments that do not use SMB/CIFS file shares or Active Directory integration are unlikely to have `cifs-utils` installed, reducing their exposure.\n\nIn OpenShift Container Platform 4, this flaw is rated Low. The default `restricted-v2` Security Context Constraint (SCC) sets `allowPrivilegeEscalation: false` on all pods, which causes the kernel to ignore setuid file bits, preventing privilege escalation. Under non-default SCCs such as `anyuid` that permit privilege escalation, the vulnerability is constrained by PID and mount namespace isolation to the container\u0027s own filesystem. An attacker would only be able to escalate privileges within the container, not on the host or across pods.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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{
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"name": "Out-of-bounds Write"
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{
"category": "description",
"text": "A flaw was found in the Linux kernel\u0027s traffic control packet editing (pedit) subsystem. In tcf_pedit_act(), the copy-on-write (COW) range for skb_ensure_writable() is computed once before iterating over edit keys, but the calculation does not account for runtime header offsets added by typed keys. This can leave part of the target write region without a proper copy-on-write, leading to an out-of-bounds write that corrupts page cache memory. A local attacker with the ability to configure traffic control rules could exploit this to escalate privileges or crash the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: net/sched: act_pedit: extend the writable skb range per key",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat rates this flaw as Important severity.\n\nThis vulnerability is in the kernel\u0027s traffic control (tc) pedit action, which requires CAP_NET_ADMIN capability to configure. By default in Red Hat Enterprise Linux, this limits exploitation to the root user or processes explicitly granted network administration capabilities. However, in some circumstances unprivileged users may obtain CAP_NET_ADMIN within user namespaces. Successful exploitation could lead to arbitrary code execution in kernel context or a system crash.\n\nRed Hat Enterprise Linux 7 and earlier are not affected. Within OpenShift Container Platform, the vulnerable module is not loaded by default, reducing the severity to Low.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-46331"
},
{
"category": "external",
"summary": "RHBZ#2479492",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2479492"
},
{
"category": "external",
"summary": "RHSB-2026-008",
"url": "https://access.redhat.com/security/vulnerabilities/RHSB-2026-008"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-46331",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46331"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-46331",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46331"
},
{
"category": "external",
"summary": "https://lore.kernel.org/netdev/20260516162825.1480113-1-rollkingzzc@gmail.com/",
"url": "https://lore.kernel.org/netdev/20260516162825.1480113-1-rollkingzzc@gmail.com/"
}
],
"release_date": "2026-05-18T04:04:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-06-29T19:33:19+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:33221"
},
{
"category": "workaround",
"details": "See the security bulletin for a detailed mitigation procedure.",
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{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
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"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "kernel: net/sched: act_pedit: extend the writable skb range per key"
}
]
}
RHSA-2026:33222
Vulnerability from csaf_redhat - Published: 2026-06-29 19:48 - Updated: 2026-08-21 12:45Summary
Red Hat Security Advisory: kpatch-patch-5_14_0-427_100_1, kpatch-patch-5_14_0-427_113_1, kpatch-patch-5_14_0-427_126_1, kpatch-patch-5_14_0-427_68_2, and kpatch-patch-5_14_0-427_84_1 security update
Severity
Important
Notes
Topic: An update for multiple packages is now available for Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: This is a kernel live patch module which can be loaded by the kpatch command line utility to modify the code of a running kernel. This patch module is targeted for kernel-5.14.0-427.68.2.el9_4.
Security Fix(es):
* kernel: net/sched: act_pedit: extend the writable skb range per key (CVE-2026-46331)
* kernel: Linux kernel: smb: client: reject userspace cifs.spnego descriptions (CVE-2026-46243)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A privilege escalation vulnerability was found in the Linux kernel's CIFS client implementation. This could allow a local attacker to impersonate other users, bypass authentication in SMB mount operations, and potentially gain unauthorized access to network file shares or escalate privileges.
7.8 (High)
Affected products
Fixed
35 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_100_1-0:1-7.el9_4.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_100_1-0:1-7.el9_4.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_100_1-0:1-7.el9_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_100_1-debuginfo-0:1-7.el9_4.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_100_1-debuginfo-0:1-7.el9_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_100_1-debugsource-0:1-7.el9_4.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_100_1-debugsource-0:1-7.el9_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_113_1-0:1-5.el9_4.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_113_1-0:1-5.el9_4.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_113_1-0:1-5.el9_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_113_1-debuginfo-0:1-5.el9_4.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_113_1-debuginfo-0:1-5.el9_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_113_1-debugsource-0:1-5.el9_4.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_113_1-debugsource-0:1-5.el9_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_126_1-0:1-2.el9_4.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_126_1-0:1-2.el9_4.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_126_1-0:1-2.el9_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_126_1-debuginfo-0:1-2.el9_4.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_126_1-debuginfo-0:1-2.el9_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_126_1-debugsource-0:1-2.el9_4.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_126_1-debugsource-0:1-2.el9_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_68_2-0:1-14.el9_4.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_68_2-0:1-14.el9_4.src | — |
Vendor Fix
fix
Workaround
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|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_68_2-0:1-14.el9_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_68_2-debuginfo-0:1-14.el9_4.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_68_2-debuginfo-0:1-14.el9_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_68_2-debugsource-0:1-14.el9_4.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_68_2-debugsource-0:1-14.el9_4.x86_64 | — |
Vendor Fix
fix
Workaround
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|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_84_1-0:1-9.el9_4.ppc64le | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_84_1-0:1-9.el9_4.src | — |
Vendor Fix
fix
Workaround
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|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_84_1-0:1-9.el9_4.x86_64 | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_84_1-debuginfo-0:1-9.el9_4.ppc64le | — |
Vendor Fix
fix
Workaround
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|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_84_1-debuginfo-0:1-9.el9_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_84_1-debugsource-0:1-9.el9_4.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_84_1-debugsource-0:1-9.el9_4.x86_64 | — |
Vendor Fix
fix
Workaround
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Threats
Impact
Important
A flaw was found in the Linux kernel's traffic control packet editing (pedit) subsystem. In tcf_pedit_act(), the copy-on-write (COW) range for skb_ensure_writable() is computed once before iterating over edit keys, but the calculation does not account for runtime header offsets added by typed keys. This can leave part of the target write region without a proper copy-on-write, leading to an out-of-bounds write that corrupts page cache memory. A local attacker with the ability to configure traffic control rules could exploit this to escalate privileges or crash the system.
6.7 (Medium)
Affected products
Fixed
35 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_100_1-0:1-7.el9_4.ppc64le | — |
Vendor Fix
fix
Workaround
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|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_100_1-0:1-7.el9_4.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_100_1-0:1-7.el9_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_100_1-debuginfo-0:1-7.el9_4.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_100_1-debuginfo-0:1-7.el9_4.x86_64 | — |
Vendor Fix
fix
Workaround
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|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_100_1-debugsource-0:1-7.el9_4.ppc64le | — |
Vendor Fix
fix
Workaround
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|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_100_1-debugsource-0:1-7.el9_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_113_1-0:1-5.el9_4.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_113_1-0:1-5.el9_4.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_113_1-0:1-5.el9_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_113_1-debuginfo-0:1-5.el9_4.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_113_1-debuginfo-0:1-5.el9_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_113_1-debugsource-0:1-5.el9_4.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_113_1-debugsource-0:1-5.el9_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_126_1-0:1-2.el9_4.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_126_1-0:1-2.el9_4.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_126_1-0:1-2.el9_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_126_1-debuginfo-0:1-2.el9_4.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_126_1-debuginfo-0:1-2.el9_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_126_1-debugsource-0:1-2.el9_4.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_126_1-debugsource-0:1-2.el9_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_68_2-0:1-14.el9_4.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_68_2-0:1-14.el9_4.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_68_2-0:1-14.el9_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_68_2-debuginfo-0:1-14.el9_4.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_68_2-debuginfo-0:1-14.el9_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_68_2-debugsource-0:1-14.el9_4.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_68_2-debugsource-0:1-14.el9_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_84_1-0:1-9.el9_4.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_84_1-0:1-9.el9_4.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_84_1-0:1-9.el9_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_84_1-debuginfo-0:1-9.el9_4.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_84_1-debuginfo-0:1-9.el9_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_84_1-debugsource-0:1-9.el9_4.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.4.0.Z.E4S:kpatch-patch-5_14_0-427_84_1-debugsource-0:1-9.el9_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
References
18 references
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"text": "A privilege escalation vulnerability was found in the Linux kernel\u0027s CIFS client implementation. This could allow a local attacker to impersonate other users, bypass authentication in SMB mount operations, and potentially gain unauthorized access to network file shares or escalate privileges.",
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"text": "kernel: Linux kernel: smb: client: reject userspace cifs.spnego descriptions",
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"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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"title": "kernel: Linux kernel: smb: client: reject userspace cifs.spnego descriptions"
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{
"cve": "CVE-2026-46331",
"cwe": {
"id": "CWE-787",
"name": "Out-of-bounds Write"
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{
"category": "description",
"text": "A flaw was found in the Linux kernel\u0027s traffic control packet editing (pedit) subsystem. In tcf_pedit_act(), the copy-on-write (COW) range for skb_ensure_writable() is computed once before iterating over edit keys, but the calculation does not account for runtime header offsets added by typed keys. This can leave part of the target write region without a proper copy-on-write, leading to an out-of-bounds write that corrupts page cache memory. A local attacker with the ability to configure traffic control rules could exploit this to escalate privileges or crash the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: net/sched: act_pedit: extend the writable skb range per key",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat rates this flaw as Important severity.\n\nThis vulnerability is in the kernel\u0027s traffic control (tc) pedit action, which requires CAP_NET_ADMIN capability to configure. By default in Red Hat Enterprise Linux, this limits exploitation to the root user or processes explicitly granted network administration capabilities. However, in some circumstances unprivileged users may obtain CAP_NET_ADMIN within user namespaces. Successful exploitation could lead to arbitrary code execution in kernel context or a system crash.\n\nRed Hat Enterprise Linux 7 and earlier are not affected. Within OpenShift Container Platform, the vulnerable module is not loaded by default, reducing the severity to Low.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-46331"
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{
"category": "external",
"summary": "RHBZ#2479492",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2479492"
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{
"category": "external",
"summary": "RHSB-2026-008",
"url": "https://access.redhat.com/security/vulnerabilities/RHSB-2026-008"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-46331",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46331"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-46331",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46331"
},
{
"category": "external",
"summary": "https://lore.kernel.org/netdev/20260516162825.1480113-1-rollkingzzc@gmail.com/",
"url": "https://lore.kernel.org/netdev/20260516162825.1480113-1-rollkingzzc@gmail.com/"
}
],
"release_date": "2026-05-18T04:04:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-06-29T19:48:49+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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},
"url": "https://access.redhat.com/errata/RHSA-2026:33222"
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{
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"baseScore": 6.7,
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"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
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],
"title": "kernel: net/sched: act_pedit: extend the writable skb range per key"
}
]
}
RHSA-2026:33223
Vulnerability from csaf_redhat - Published: 2026-06-29 19:55 - Updated: 2026-08-21 12:45Summary
Red Hat Security Advisory: kpatch-patch-5_14_0-570_116_1, kpatch-patch-5_14_0-570_17_1, kpatch-patch-5_14_0-570_39_1, kpatch-patch-5_14_0-570_66_1, and kpatch-patch-5_14_0-570_94_1 security update
Severity
Important
Notes
Topic: An update for multiple packages is now available for Red Hat Enterprise Linux 9.6 Extended Update Support.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: This is a kernel live patch module which can be loaded by the kpatch command line utility to modify the code of a running kernel. This patch module is targeted for kernel-5.14.0-570.17.1.el9_6.
Security Fix(es):
* kernel: net/sched: act_pedit: extend the writable skb range per key (CVE-2026-46331)
* kernel: Linux kernel: smb: client: reject userspace cifs.spnego descriptions (CVE-2026-46243)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A privilege escalation vulnerability was found in the Linux kernel's CIFS client implementation. This could allow a local attacker to impersonate other users, bypass authentication in SMB mount operations, and potentially gain unauthorized access to network file shares or escalate privileges.
7.8 (High)
Affected products
Fixed
35 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_116_1-0:1-2.el9_6.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_116_1-0:1-2.el9_6.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_116_1-0:1-2.el9_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_116_1-debuginfo-0:1-2.el9_6.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_116_1-debuginfo-0:1-2.el9_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_116_1-debugsource-0:1-2.el9_6.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_116_1-debugsource-0:1-2.el9_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_17_1-0:1-17.el9_6.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_17_1-0:1-17.el9_6.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_17_1-0:1-17.el9_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_17_1-debuginfo-0:1-17.el9_6.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_17_1-debuginfo-0:1-17.el9_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_17_1-debugsource-0:1-17.el9_6.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_17_1-debugsource-0:1-17.el9_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_39_1-0:1-8.el9_6.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_39_1-0:1-8.el9_6.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_39_1-0:1-8.el9_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_39_1-debuginfo-0:1-8.el9_6.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_39_1-debuginfo-0:1-8.el9_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_39_1-debugsource-0:1-8.el9_6.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_39_1-debugsource-0:1-8.el9_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_66_1-0:1-7.el9_6.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_66_1-0:1-7.el9_6.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_66_1-0:1-7.el9_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_66_1-debuginfo-0:1-7.el9_6.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_66_1-debuginfo-0:1-7.el9_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_66_1-debugsource-0:1-7.el9_6.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_66_1-debugsource-0:1-7.el9_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_94_1-0:1-5.el9_6.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_94_1-0:1-5.el9_6.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_94_1-0:1-5.el9_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_94_1-debuginfo-0:1-5.el9_6.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_94_1-debuginfo-0:1-5.el9_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_94_1-debugsource-0:1-5.el9_6.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_94_1-debugsource-0:1-5.el9_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
A flaw was found in the Linux kernel's traffic control packet editing (pedit) subsystem. In tcf_pedit_act(), the copy-on-write (COW) range for skb_ensure_writable() is computed once before iterating over edit keys, but the calculation does not account for runtime header offsets added by typed keys. This can leave part of the target write region without a proper copy-on-write, leading to an out-of-bounds write that corrupts page cache memory. A local attacker with the ability to configure traffic control rules could exploit this to escalate privileges or crash the system.
6.7 (Medium)
Affected products
Fixed
35 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_116_1-0:1-2.el9_6.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_116_1-0:1-2.el9_6.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_116_1-0:1-2.el9_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_116_1-debuginfo-0:1-2.el9_6.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_116_1-debuginfo-0:1-2.el9_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_116_1-debugsource-0:1-2.el9_6.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_116_1-debugsource-0:1-2.el9_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_17_1-0:1-17.el9_6.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_17_1-0:1-17.el9_6.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_17_1-0:1-17.el9_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_17_1-debuginfo-0:1-17.el9_6.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_17_1-debuginfo-0:1-17.el9_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_17_1-debugsource-0:1-17.el9_6.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_17_1-debugsource-0:1-17.el9_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_39_1-0:1-8.el9_6.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_39_1-0:1-8.el9_6.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_39_1-0:1-8.el9_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_39_1-debuginfo-0:1-8.el9_6.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_39_1-debuginfo-0:1-8.el9_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_39_1-debugsource-0:1-8.el9_6.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_39_1-debugsource-0:1-8.el9_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_66_1-0:1-7.el9_6.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_66_1-0:1-7.el9_6.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_66_1-0:1-7.el9_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_66_1-debuginfo-0:1-7.el9_6.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_66_1-debuginfo-0:1-7.el9_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_66_1-debugsource-0:1-7.el9_6.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_66_1-debugsource-0:1-7.el9_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_94_1-0:1-5.el9_6.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_94_1-0:1-5.el9_6.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_94_1-0:1-5.el9_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_94_1-debuginfo-0:1-5.el9_6.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_94_1-debuginfo-0:1-5.el9_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_94_1-debugsource-0:1-5.el9_6.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.6.0.Z.EUS:kpatch-patch-5_14_0-570_94_1-debugsource-0:1-5.el9_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
References
18 references
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"text": "This is a kernel live patch module which can be loaded by the kpatch command line utility to modify the code of a running kernel. This patch module is targeted for kernel-5.14.0-570.17.1.el9_6.\n\nSecurity Fix(es):\n\n* kernel: net/sched: act_pedit: extend the writable skb range per key (CVE-2026-46331)\n\n* kernel: Linux kernel: smb: client: reject userspace cifs.spnego descriptions (CVE-2026-46243)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
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{
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"text": "A privilege escalation vulnerability was found in the Linux kernel\u0027s CIFS client implementation. This could allow a local attacker to impersonate other users, bypass authentication in SMB mount operations, and potentially gain unauthorized access to network file shares or escalate privileges.",
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"text": "kernel: Linux kernel: smb: client: reject userspace cifs.spnego descriptions",
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"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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{
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{
"category": "description",
"text": "A flaw was found in the Linux kernel\u0027s traffic control packet editing (pedit) subsystem. In tcf_pedit_act(), the copy-on-write (COW) range for skb_ensure_writable() is computed once before iterating over edit keys, but the calculation does not account for runtime header offsets added by typed keys. This can leave part of the target write region without a proper copy-on-write, leading to an out-of-bounds write that corrupts page cache memory. A local attacker with the ability to configure traffic control rules could exploit this to escalate privileges or crash the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: net/sched: act_pedit: extend the writable skb range per key",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat rates this flaw as Important severity.\n\nThis vulnerability is in the kernel\u0027s traffic control (tc) pedit action, which requires CAP_NET_ADMIN capability to configure. By default in Red Hat Enterprise Linux, this limits exploitation to the root user or processes explicitly granted network administration capabilities. However, in some circumstances unprivileged users may obtain CAP_NET_ADMIN within user namespaces. Successful exploitation could lead to arbitrary code execution in kernel context or a system crash.\n\nRed Hat Enterprise Linux 7 and earlier are not affected. Within OpenShift Container Platform, the vulnerable module is not loaded by default, reducing the severity to Low.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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{
"category": "external",
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2479492"
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{
"category": "external",
"summary": "RHSB-2026-008",
"url": "https://access.redhat.com/security/vulnerabilities/RHSB-2026-008"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-46331",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46331"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-46331",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46331"
},
{
"category": "external",
"summary": "https://lore.kernel.org/netdev/20260516162825.1480113-1-rollkingzzc@gmail.com/",
"url": "https://lore.kernel.org/netdev/20260516162825.1480113-1-rollkingzzc@gmail.com/"
}
],
"release_date": "2026-05-18T04:04:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-06-29T19:55:59+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"restart_required": {
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"title": "kernel: net/sched: act_pedit: extend the writable skb range per key"
}
]
}
RHSA-2026:33224
Vulnerability from csaf_redhat - Published: 2026-06-29 19:59 - Updated: 2026-08-21 12:45Summary
Red Hat Security Advisory: kpatch-patch-5_14_0-687_10_1 security update
Severity
Important
Notes
Topic: An update for kpatch-patch-5_14_0-687_10_1 is now available for Red Hat Enterprise Linux 9.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: This is a kernel live patch module which can be loaded by the kpatch command line utility to modify the code of a running kernel. This patch module is targeted for kernel-5.14.0-687.10.1.el9_8.
Security Fix(es):
* kernel: net/sched: act_pedit: extend the writable skb range per key (CVE-2026-46331)
* kernel: Linux kernel: smb: client: reject userspace cifs.spnego descriptions (CVE-2026-46243)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A privilege escalation vulnerability was found in the Linux kernel's CIFS client implementation. This could allow a local attacker to impersonate other users, bypass authentication in SMB mount operations, and potentially gain unauthorized access to network file shares or escalate privileges.
7.8 (High)
Affected products
Fixed
7 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-9.8.0.Z.MAIN.EUS:kpatch-patch-5_14_0-687_10_1-0:1-2.el9_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.8.0.Z.MAIN.EUS:kpatch-patch-5_14_0-687_10_1-0:1-2.el9_8.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.8.0.Z.MAIN.EUS:kpatch-patch-5_14_0-687_10_1-0:1-2.el9_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.8.0.Z.MAIN.EUS:kpatch-patch-5_14_0-687_10_1-debuginfo-0:1-2.el9_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.8.0.Z.MAIN.EUS:kpatch-patch-5_14_0-687_10_1-debuginfo-0:1-2.el9_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.8.0.Z.MAIN.EUS:kpatch-patch-5_14_0-687_10_1-debugsource-0:1-2.el9_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.8.0.Z.MAIN.EUS:kpatch-patch-5_14_0-687_10_1-debugsource-0:1-2.el9_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
A flaw was found in the Linux kernel's traffic control packet editing (pedit) subsystem. In tcf_pedit_act(), the copy-on-write (COW) range for skb_ensure_writable() is computed once before iterating over edit keys, but the calculation does not account for runtime header offsets added by typed keys. This can leave part of the target write region without a proper copy-on-write, leading to an out-of-bounds write that corrupts page cache memory. A local attacker with the ability to configure traffic control rules could exploit this to escalate privileges or crash the system.
6.7 (Medium)
Affected products
Fixed
7 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-9.8.0.Z.MAIN.EUS:kpatch-patch-5_14_0-687_10_1-0:1-2.el9_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.8.0.Z.MAIN.EUS:kpatch-patch-5_14_0-687_10_1-0:1-2.el9_8.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.8.0.Z.MAIN.EUS:kpatch-patch-5_14_0-687_10_1-0:1-2.el9_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.8.0.Z.MAIN.EUS:kpatch-patch-5_14_0-687_10_1-debuginfo-0:1-2.el9_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.8.0.Z.MAIN.EUS:kpatch-patch-5_14_0-687_10_1-debuginfo-0:1-2.el9_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.8.0.Z.MAIN.EUS:kpatch-patch-5_14_0-687_10_1-debugsource-0:1-2.el9_8.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.8.0.Z.MAIN.EUS:kpatch-patch-5_14_0-687_10_1-debugsource-0:1-2.el9_8.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
References
18 references
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RHSA-2026:33225
Vulnerability from csaf_redhat - Published: 2026-06-29 22:56 - Updated: 2026-08-21 12:45Summary
Red Hat Security Advisory: kpatch-patch-6_12_0-211_16_1 security update
Severity
Important
Notes
Topic: An update for kpatch-patch-6_12_0-211_16_1 is now available for Red Hat Enterprise Linux 10.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: This is a kernel live patch module which can be loaded by the kpatch command line utility to modify the code of a running kernel. This patch module is targeted for kernel-6.12.0-211.16.1.el10_2.
Security Fix(es):
* kernel: net/sched: act_pedit: extend the writable skb range per key (CVE-2026-46331)
* kernel: Linux kernel: smb: client: reject userspace cifs.spnego descriptions (CVE-2026-46243)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A privilege escalation vulnerability was found in the Linux kernel's CIFS client implementation. This could allow a local attacker to impersonate other users, bypass authentication in SMB mount operations, and potentially gain unauthorized access to network file shares or escalate privileges.
7.8 (High)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-10.2.Z:kpatch-patch-6_12_0-211_16_1-0:1-2.el10_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-10.2.Z:kpatch-patch-6_12_0-211_16_1-0:1-2.el10_2.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-10.2.Z:kpatch-patch-6_12_0-211_16_1-0:1-2.el10_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-10.2.Z:kpatch-patch-6_12_0-211_16_1-debuginfo-0:1-2.el10_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-10.2.Z:kpatch-patch-6_12_0-211_16_1-debuginfo-0:1-2.el10_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-10.2.Z:kpatch-patch-6_12_0-211_16_1-debugsource-0:1-2.el10_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
A flaw was found in the Linux kernel's traffic control packet editing (pedit) subsystem. In tcf_pedit_act(), the copy-on-write (COW) range for skb_ensure_writable() is computed once before iterating over edit keys, but the calculation does not account for runtime header offsets added by typed keys. This can leave part of the target write region without a proper copy-on-write, leading to an out-of-bounds write that corrupts page cache memory. A local attacker with the ability to configure traffic control rules could exploit this to escalate privileges or crash the system.
6.7 (Medium)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-10.2.Z:kpatch-patch-6_12_0-211_16_1-0:1-2.el10_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-10.2.Z:kpatch-patch-6_12_0-211_16_1-0:1-2.el10_2.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-10.2.Z:kpatch-patch-6_12_0-211_16_1-0:1-2.el10_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-10.2.Z:kpatch-patch-6_12_0-211_16_1-debuginfo-0:1-2.el10_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-10.2.Z:kpatch-patch-6_12_0-211_16_1-debuginfo-0:1-2.el10_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-10.2.Z:kpatch-patch-6_12_0-211_16_1-debugsource-0:1-2.el10_2.ppc64le | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
References
18 references
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"text": "A privilege escalation vulnerability was found in the Linux kernel\u0027s CIFS client implementation. This could allow a local attacker to impersonate other users, bypass authentication in SMB mount operations, and potentially gain unauthorized access to network file shares or escalate privileges.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: Linux kernel: smb: client: reject userspace cifs.spnego descriptions",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue is classified as Important severity primarily because a low-privileged local user can achieve full privilege escalation to root without any user interaction. The attack requires local access, which prevents remote exploitation and is the primary factor keeping the rating at Important rather than Critical.\n\nExploitation requires three components to be present on the system: the `cifs` kernel module (loaded or loadable), the `cifs-utils` package with its default `cifs.spnego` request-key rule, and the ability to create unprivileged user and mount namespaces. All three must be present for the attack chain to succeed. Environments that do not use SMB/CIFS file shares or Active Directory integration are unlikely to have `cifs-utils` installed, reducing their exposure.\n\nIn OpenShift Container Platform 4, this flaw is rated Low. The default `restricted-v2` Security Context Constraint (SCC) sets `allowPrivilegeEscalation: false` on all pods, which causes the kernel to ignore setuid file bits, preventing privilege escalation. Under non-default SCCs such as `anyuid` that permit privilege escalation, the vulnerability is constrained by PID and mount namespace isolation to the container\u0027s own filesystem. An attacker would only be able to escalate privileges within the container, not on the host or across pods.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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},
{
"category": "external",
"summary": "RHBZ#2481486",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481486"
},
{
"category": "external",
"summary": "RHSB-2026-005",
"url": "https://access.redhat.com/security/vulnerabilities/RHSB-2026-005"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-46243",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46243"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-46243",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46243"
},
{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3da1fdf4efbc490041eb4f836bf596201203f8f2",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3da1fdf4efbc490041eb4f836bf596201203f8f2"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2026060140-CVE-2026-46243-3d1c@gregkh/",
"url": "https://lore.kernel.org/linux-cve-announce/2026060140-CVE-2026-46243-3d1c@gregkh/"
}
],
"release_date": "2026-05-26T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-06-29T22:56:35+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:33225"
},
{
"category": "workaround",
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],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
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],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "kernel: Linux kernel: smb: client: reject userspace cifs.spnego descriptions"
},
{
"cve": "CVE-2026-46331",
"cwe": {
"id": "CWE-787",
"name": "Out-of-bounds Write"
},
"discovery_date": "2026-05-18T06:17:23.219000+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2479492"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the Linux kernel\u0027s traffic control packet editing (pedit) subsystem. In tcf_pedit_act(), the copy-on-write (COW) range for skb_ensure_writable() is computed once before iterating over edit keys, but the calculation does not account for runtime header offsets added by typed keys. This can leave part of the target write region without a proper copy-on-write, leading to an out-of-bounds write that corrupts page cache memory. A local attacker with the ability to configure traffic control rules could exploit this to escalate privileges or crash the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: net/sched: act_pedit: extend the writable skb range per key",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat rates this flaw as Important severity.\n\nThis vulnerability is in the kernel\u0027s traffic control (tc) pedit action, which requires CAP_NET_ADMIN capability to configure. By default in Red Hat Enterprise Linux, this limits exploitation to the root user or processes explicitly granted network administration capabilities. However, in some circumstances unprivileged users may obtain CAP_NET_ADMIN within user namespaces. Successful exploitation could lead to arbitrary code execution in kernel context or a system crash.\n\nRed Hat Enterprise Linux 7 and earlier are not affected. Within OpenShift Container Platform, the vulnerable module is not loaded by default, reducing the severity to Low.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-46331"
},
{
"category": "external",
"summary": "RHBZ#2479492",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2479492"
},
{
"category": "external",
"summary": "RHSB-2026-008",
"url": "https://access.redhat.com/security/vulnerabilities/RHSB-2026-008"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-46331",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46331"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-46331",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46331"
},
{
"category": "external",
"summary": "https://lore.kernel.org/netdev/20260516162825.1480113-1-rollkingzzc@gmail.com/",
"url": "https://lore.kernel.org/netdev/20260516162825.1480113-1-rollkingzzc@gmail.com/"
}
],
"release_date": "2026-05-18T04:04:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-06-29T22:56:35+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
"product_ids": [
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],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:33225"
},
{
"category": "workaround",
"details": "See the security bulletin for a detailed mitigation procedure.",
"product_ids": [
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]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
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}
],
"threats": [
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"details": "Important"
}
],
"title": "kernel: net/sched: act_pedit: extend the writable skb range per key"
}
]
}
RHSA-2026:33666
Vulnerability from csaf_redhat - Published: 2026-06-30 17:47 - Updated: 2026-08-21 12:45Summary
Red Hat Security Advisory: kernel security, bug fix, and enhancement update
Severity
Important
Notes
Topic: An update for kernel is now available for Red Hat Enterprise Linux for NVIDIA.
Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: A special build of the kernel packages for Red Hat Enterprise Linux for
NVIDIA.
* CVE-2026-46331 kernel: net/sched: act_pedit: extend the writable skb range per key
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
For detailed information on changes in this release, see the RHEL for NVIDIA Release Notes linked from the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in the Linux kernel's traffic control packet editing (pedit) subsystem. In tcf_pedit_act(), the copy-on-write (COW) range for skb_ensure_writable() is computed once before iterating over edit keys, but the calculation does not account for runtime header offsets added by typed keys. This can leave part of the target write region without a proper copy-on-write, leading to an out-of-bounds write that corrupts page cache memory. A local attacker with the ability to configure traffic control rules could exploit this to escalate privileges or crash the system.
6.7 (Medium)
Affected products
Fixed
47 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-0:6.12.0-231.13.el10nv.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-64k-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-64k-core-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-64k-debug-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-64k-debug-core-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-64k-debug-debuginfo-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-64k-debug-modules-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-64k-debug-modules-core-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-64k-debug-modules-extra-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-64k-debuginfo-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-64k-modules-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-64k-modules-core-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-64k-modules-extra-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-abi-stablelists-0:6.12.0-231.13.el10nv.noarch | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-core-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-debug-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-debug-core-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-debug-debuginfo-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-debug-devel-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-debug-devel-matched-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-debug-modules-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-debug-modules-core-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-debug-modules-extra-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-debuginfo-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-debuginfo-common-aarch64-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-devel-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-devel-matched-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-doc-0:6.12.0-231.13.el10nv.noarch | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-modules-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-modules-core-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-modules-extra-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-modules-extra-matched-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-tools-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-tools-debuginfo-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-tools-libs-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-uki-virt-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
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|
| Unresolved product id: 10Base-RHEL-Nvidia:kernel-uki-virt-addons-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:libperf-debuginfo-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
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|
| Unresolved product id: 10Base-RHEL-Nvidia:perf-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
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| Unresolved product id: 10Base-RHEL-Nvidia:perf-debuginfo-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
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| Unresolved product id: 10Base-RHEL-Nvidia:python3-perf-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:python3-perf-debuginfo-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 10Base-RHEL-Nvidia:rtla-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
Workaround
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|
| Unresolved product id: 10Base-RHEL-Nvidia:rtla-debuginfo-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
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| Unresolved product id: 10Base-RHEL-Nvidia:rv-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
fix
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| Unresolved product id: 10Base-RHEL-Nvidia:rv-debuginfo-0:6.12.0-231.13.el10nv.aarch64 | — |
Vendor Fix
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Threats
Impact
Important
References
11 references
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"text": "A flaw was found in the Linux kernel\u0027s traffic control packet editing (pedit) subsystem. In tcf_pedit_act(), the copy-on-write (COW) range for skb_ensure_writable() is computed once before iterating over edit keys, but the calculation does not account for runtime header offsets added by typed keys. This can leave part of the target write region without a proper copy-on-write, leading to an out-of-bounds write that corrupts page cache memory. A local attacker with the ability to configure traffic control rules could exploit this to escalate privileges or crash the system.",
"title": "Vulnerability description"
},
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"text": "kernel: net/sched: act_pedit: extend the writable skb range per key",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat rates this flaw as Important severity.\n\nThis vulnerability is in the kernel\u0027s traffic control (tc) pedit action, which requires CAP_NET_ADMIN capability to configure. By default in Red Hat Enterprise Linux, this limits exploitation to the root user or processes explicitly granted network administration capabilities. However, in some circumstances unprivileged users may obtain CAP_NET_ADMIN within user namespaces. Successful exploitation could lead to arbitrary code execution in kernel context or a system crash.\n\nRed Hat Enterprise Linux 7 and earlier are not affected. Within OpenShift Container Platform, the vulnerable module is not loaded by default, reducing the severity to Low.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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"date": "2026-06-30T17:47:38+00:00",
"details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"version": "3.1"
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"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "kernel: net/sched: act_pedit: extend the writable skb range per key"
}
]
}
RHSA-2026:34048
Vulnerability from csaf_redhat - Published: 2026-07-09 20:00 - Updated: 2026-08-21 12:45Summary
Red Hat Security Advisory: OpenShift Container Platform 4.12.93 bug fix and security update
Severity
Important
Notes
Topic: Red Hat OpenShift Container Platform release 4.12.93 is now available with
updates to packages and images that fix several bugs and add enhancements.
This release includes a security update for Red Hat OpenShift Container
Platform 4.12.
Red Hat Product Security has rated this update as having a security impact
of Low. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.
Details: Red Hat OpenShift Container Platform is Red Hat's cloud computing
Kubernetes application platform solution designed for on-premise or private
cloud deployments.
This advisory contains the container images for Red Hat OpenShift Container
Platform 4.12.93. See the following advisory for the RPM packages for this
release:
https://access.redhat.com/errata/RHBA-2026:34046
Space precludes documenting all of the container images in this advisory.
See the following Release Notes documentation, which will be updated
shortly for this release, for details about these changes:
https://docs.redhat.com/en/documentation/openshift_container_platform/4.12/html/release_notes
Security Fix(es):
None
For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.
All OpenShift Container Platform 4.12 users are advised to upgrade to these
updated packages and images when they are available in the appropriate
release channel. To check for available updates, use the OpenShift CLI (oc)
or web console. Instructions for upgrading a cluster are available at
https://docs.redhat.com/en/documentation/openshift_container_platform/4.12/html-single/updating_clusters/index#updating-cluster-within-minor.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in BIND. A remote attacker could exploit this vulnerability by sending a maliciously crafted DNSSEC-validated zone to a BIND resolver. This could cause the resolver to consume excessive CPU resources, leading to a denial of service (DoS) for legitimate users.
7.5 (High)
Affected products
Fixed
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 8Base-RHOSE-4.12:rhcos-x86_64-412.86.202606251120-0 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
A privilege escalation vulnerability was found in the Linux kernel's CIFS client implementation. This could allow a local attacker to impersonate other users, bypass authentication in SMB mount operations, and potentially gain unauthorized access to network file shares or escalate privileges.
7.8 (High)
Affected products
Fixed
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 8Base-RHOSE-4.12:rhcos-x86_64-412.86.202606251120-0 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Low
A flaw was found in the Linux kernel's traffic control packet editing (pedit) subsystem. In tcf_pedit_act(), the copy-on-write (COW) range for skb_ensure_writable() is computed once before iterating over edit keys, but the calculation does not account for runtime header offsets added by typed keys. This can leave part of the target write region without a proper copy-on-write, leading to an out-of-bounds write that corrupts page cache memory. A local attacker with the ability to configure traffic control rules could exploit this to escalate privileges or crash the system.
6.7 (Medium)
Affected products
Fixed
1 product
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 8Base-RHOSE-4.12:rhcos-x86_64-412.86.202606251120-0 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Low
References
27 references
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"date": "2026-07-09T20:00:54+00:00",
"details": "For OpenShift Container Platform 4.12 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.12/html/release_notes\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64 architecture. The image digest may be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\n The sha value for the release is as follows:\n\n (For x86_64 architecture)\n The image digest is sha256:746f1a33a0b89a5489916b10366777b2672b65cfcd0cdfaffe5a710e3aa15f35\n\nAll OpenShift Container Platform 4.12 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.12/html-single/updating_clusters/index#updating-cluster-within-minor.",
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"details": "To mitigate this issue, disable DNSSEC validation on affected BIND resolvers. Alternatively, configure the BIND server as authoritative-only if recursive queries are not required. Disabling DNSSEC validation may reduce the security posture of the DNS resolver. A restart of the BIND service (`named`) is required for these changes to take effect and may temporarily interrupt DNS resolution.",
"product_ids": [
"8Base-RHOSE-4.12:rhcos-x86_64-412.86.202606251120-0"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"8Base-RHOSE-4.12:rhcos-x86_64-412.86.202606251120-0"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "bind: BIND: Denial of Service via maliciously crafted DNSSEC-validated zone"
},
{
"cve": "CVE-2026-46243",
"cwe": {
"id": "CWE-825",
"name": "Expired Pointer Dereference"
},
"discovery_date": "2026-05-26T15:07:49.955000+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2481486"
}
],
"notes": [
{
"category": "description",
"text": "A privilege escalation vulnerability was found in the Linux kernel\u0027s CIFS client implementation. This could allow a local attacker to impersonate other users, bypass authentication in SMB mount operations, and potentially gain unauthorized access to network file shares or escalate privileges.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: Linux kernel: smb: client: reject userspace cifs.spnego descriptions",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue is classified as Important severity primarily because a low-privileged local user can achieve full privilege escalation to root without any user interaction. The attack requires local access, which prevents remote exploitation and is the primary factor keeping the rating at Important rather than Critical.\n\nExploitation requires three components to be present on the system: the `cifs` kernel module (loaded or loadable), the `cifs-utils` package with its default `cifs.spnego` request-key rule, and the ability to create unprivileged user and mount namespaces. All three must be present for the attack chain to succeed. Environments that do not use SMB/CIFS file shares or Active Directory integration are unlikely to have `cifs-utils` installed, reducing their exposure.\n\nIn OpenShift Container Platform 4, this flaw is rated Low. The default `restricted-v2` Security Context Constraint (SCC) sets `allowPrivilegeEscalation: false` on all pods, which causes the kernel to ignore setuid file bits, preventing privilege escalation. Under non-default SCCs such as `anyuid` that permit privilege escalation, the vulnerability is constrained by PID and mount namespace isolation to the container\u0027s own filesystem. An attacker would only be able to escalate privileges within the container, not on the host or across pods.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"8Base-RHOSE-4.12:rhcos-x86_64-412.86.202606251120-0"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-46243"
},
{
"category": "external",
"summary": "RHBZ#2481486",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481486"
},
{
"category": "external",
"summary": "RHSB-2026-005",
"url": "https://access.redhat.com/security/vulnerabilities/RHSB-2026-005"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-46243",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46243"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-46243",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46243"
},
{
"category": "external",
"summary": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3da1fdf4efbc490041eb4f836bf596201203f8f2",
"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3da1fdf4efbc490041eb4f836bf596201203f8f2"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2026060140-CVE-2026-46243-3d1c@gregkh/",
"url": "https://lore.kernel.org/linux-cve-announce/2026060140-CVE-2026-46243-3d1c@gregkh/"
}
],
"release_date": "2026-05-26T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-07-09T20:00:54+00:00",
"details": "For OpenShift Container Platform 4.12 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.12/html/release_notes\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64 architecture. The image digest may be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\n The sha value for the release is as follows:\n\n (For x86_64 architecture)\n The image digest is sha256:746f1a33a0b89a5489916b10366777b2672b65cfcd0cdfaffe5a710e3aa15f35\n\nAll OpenShift Container Platform 4.12 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.12/html-single/updating_clusters/index#updating-cluster-within-minor.",
"product_ids": [
"8Base-RHOSE-4.12:rhcos-x86_64-412.86.202606251120-0"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:34048"
},
{
"category": "workaround",
"details": "See the security bulletin for a detailed mitigation procedure.",
"product_ids": [
"8Base-RHOSE-4.12:rhcos-x86_64-412.86.202606251120-0"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
"8Base-RHOSE-4.12:rhcos-x86_64-412.86.202606251120-0"
]
}
],
"threats": [
{
"category": "impact",
"details": "Low"
}
],
"title": "kernel: Linux kernel: smb: client: reject userspace cifs.spnego descriptions"
},
{
"cve": "CVE-2026-46331",
"cwe": {
"id": "CWE-787",
"name": "Out-of-bounds Write"
},
"discovery_date": "2026-05-18T06:17:23.219000+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2479492"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the Linux kernel\u0027s traffic control packet editing (pedit) subsystem. In tcf_pedit_act(), the copy-on-write (COW) range for skb_ensure_writable() is computed once before iterating over edit keys, but the calculation does not account for runtime header offsets added by typed keys. This can leave part of the target write region without a proper copy-on-write, leading to an out-of-bounds write that corrupts page cache memory. A local attacker with the ability to configure traffic control rules could exploit this to escalate privileges or crash the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: net/sched: act_pedit: extend the writable skb range per key",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat rates this flaw as Important severity.\n\nThis vulnerability is in the kernel\u0027s traffic control (tc) pedit action, which requires CAP_NET_ADMIN capability to configure. By default in Red Hat Enterprise Linux, this limits exploitation to the root user or processes explicitly granted network administration capabilities. However, in some circumstances unprivileged users may obtain CAP_NET_ADMIN within user namespaces. Successful exploitation could lead to arbitrary code execution in kernel context or a system crash.\n\nRed Hat Enterprise Linux 7 and earlier are not affected. Within OpenShift Container Platform, the vulnerable module is not loaded by default, reducing the severity to Low.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"8Base-RHOSE-4.12:rhcos-x86_64-412.86.202606251120-0"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-46331"
},
{
"category": "external",
"summary": "RHBZ#2479492",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2479492"
},
{
"category": "external",
"summary": "RHSB-2026-008",
"url": "https://access.redhat.com/security/vulnerabilities/RHSB-2026-008"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-46331",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46331"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-46331",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46331"
},
{
"category": "external",
"summary": "https://lore.kernel.org/netdev/20260516162825.1480113-1-rollkingzzc@gmail.com/",
"url": "https://lore.kernel.org/netdev/20260516162825.1480113-1-rollkingzzc@gmail.com/"
}
],
"release_date": "2026-05-18T04:04:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-07-09T20:00:54+00:00",
"details": "For OpenShift Container Platform 4.12 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.12/html/release_notes\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64 architecture. The image digest may be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\n The sha value for the release is as follows:\n\n (For x86_64 architecture)\n The image digest is sha256:746f1a33a0b89a5489916b10366777b2672b65cfcd0cdfaffe5a710e3aa15f35\n\nAll OpenShift Container Platform 4.12 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.12/html-single/updating_clusters/index#updating-cluster-within-minor.",
"product_ids": [
"8Base-RHOSE-4.12:rhcos-x86_64-412.86.202606251120-0"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:34048"
},
{
"category": "workaround",
"details": "See the security bulletin for a detailed mitigation procedure.",
"product_ids": [
"8Base-RHOSE-4.12:rhcos-x86_64-412.86.202606251120-0"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
"8Base-RHOSE-4.12:rhcos-x86_64-412.86.202606251120-0"
]
}
],
"threats": [
{
"category": "impact",
"details": "Low"
}
],
"title": "kernel: net/sched: act_pedit: extend the writable skb range per key"
}
]
}
RHSA-2026:34098
Vulnerability from csaf_redhat - Published: 2026-07-09 08:03 - Updated: 2026-08-21 17:12Summary
Red Hat Security Advisory: OpenShift Container Platform 4.17.55 bug fix and security update
Severity
Critical
Notes
Topic: Red Hat OpenShift Container Platform release 4.17.55 is now available with
updates to packages and images that fix several bugs and add enhancements.
This release includes a security update for Red Hat OpenShift Container
Platform 4.17.
Red Hat Product Security has rated this update as having a security impact
of Critical. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.
Details: Red Hat OpenShift Container Platform is Red Hat's cloud computing
Kubernetes application platform solution designed for on-premise or private
cloud deployments.
This advisory contains the container images for Red Hat OpenShift Container
Platform 4.17.55. See the following advisory for the RPM packages for this
release:
https://access.redhat.com/errata/RHSA-2026:34097
Space precludes documenting all of the container images in this advisory.
See the following Release Notes documentation, which will be updated
shortly for this release, for details about these changes:
https://docs.redhat.com/en/documentation/openshift_container_platform/4.17/html/release_notes/
Security Fix(es):
* kernel: ip6_tunnel: clear skb2->cb[] in ip4ip6_err() (CVE-2026-43037)
* libcap: libcap: Privilege escalation via TOCTOU race condition in
cap_set_file() (CVE-2026-4878)
* OpenSSH: OpenSSH: Privilege escalation via scp legacy protocol when not
preserving file mode (CVE-2026-35385)
* sudo: Sudo: Privilege escalation due to failure in privilege drop calls
(CVE-2026-35535)
* jq: out-of-bounds read in jv_parse_sized() on error formatting for
non-NUL-terminated buffers (CVE-2026-39979)
* jq: jq: Denial of Service via crafted JSON object causing hash collisions
(CVE-2026-40164)
* rsync: Rsync: Use-after-free vulnerability in extended attribute handling
(CVE-2026-41035)
* kernel: "Dirty Frag" ESP XFRM variant is a new universal Local Privilege
Escalation (LPE) vulnerability in the Linux kernel (CVE-2026-43284)
* kernel: "Fragnesia" is a variant of Dirty Frag vulnerability in the
ESP/XFRM leading to Local Privilege Escalation (LPE) vulnerability in the
Linux kernel (CVE-2026-46300)
* kernel: net/sched: act_pedit: extend the writable skb range per key
(CVE-2026-46331)
For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.
All OpenShift Container Platform 4.17 users are advised to upgrade to these
updated packages and images when they are available in the appropriate
release channel. To check for available updates, use the OpenShift CLI (oc)
or web console. Instructions for upgrading a cluster are available at
https://docs.redhat.com/en/documentation/openshift_container_platform/4.17/html-single/updating_clusters/index#updating-cluster-cli.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in libcap. A local unprivileged user can exploit a Time-of-check-to-time-of-use (TOCTOU) race condition in the `cap_set_file()` function. This allows an attacker with write access to a parent directory to redirect file capability updates to an attacker-controlled file. By doing so, capabilities can be injected into or stripped from unintended executables, leading to privilege escalation.
6.7 (Medium)
Affected products
Fixed
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
A flaw was found in OpenSSH. When the `scp` command is used by a root user to download a file with the legacy protocol option (`-O`) and without preserving original file permissions (`-p`), the downloaded file can be installed with elevated privileges (setuid or setgid). This unexpected behavior could allow a malicious file to execute with higher permissions than intended, posing a security risk through potential privilege escalation.
7.5 (High)
Affected products
Fixed
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
A flaw was found in Sudo. A local user could exploit a failure in the setuid, setgid, or setgroups calls, which are used to drop privileges before running the mailer. This oversight allows for privilege escalation, enabling the user to gain elevated access on the system.
7.4 (High)
Affected products
Fixed
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0 | — |
Vendor Fix
fix
|
Threats
Impact
Important
A flaw was found in jq, a command line JSON processor, specifically in the libjq API. Parsing a malformed JSON input from a non-NUL-terminated buffer using the `jv_parse_sized` function can cause an out-of-bounds read, resulting in an application crash and a possible memory disclosure within the error message generated by the parser.
8.2 (High)
Affected products
Fixed
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
A flaw was found in jq, a command-line JSON processor. A remote attacker could exploit this vulnerability by providing a specially crafted JSON object. This object leverages a weakness in jq's hashing algorithm, which uses a hardcoded, publicly known seed. By crafting the JSON object to cause hash collisions, an attacker can degrade the performance of JSON object hash table operations, leading to significant CPU exhaustion and a denial of service (DoS) for systems processing the malicious JSON data.
7.5 (High)
Affected products
Fixed
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
A flaw was found in rsync. When rsync is configured to handle extended attributes (using the -X or --xattrs option), a remote attacker can exploit a use-after-free vulnerability. This occurs because the receive_xattr function incorrectly processes an untrusted length value during a sorting operation, leading to memory corruption. Successful exploitation can result in a denial of service, causing the rsync process to crash, and may potentially allow for arbitrary code execution.
7.4 (High)
Affected products
Fixed
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
A flaw was found in the Linux kernel's IPv6 tunnel implementation. A remote attacker could exploit this flaw by sending malicious ICMPv6 error messages to cause a stack-based buffer overflow in the kernel's IPv4-over-IPv6 tunnel error handling code. This could result in a kernel crash (denial of service) or potentially allow arbitrary code execution with kernel privileges.
8.8 (High)
Affected products
Fixed
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Critical
A flaw was found in the Linux kernel's xfrm-ESP and RxRPC subsystems. Unsafe in-place cryptographic processing of shared socket buffer fragments allows a low-privileged local attacker to corrupt page-cache contents of readable files, including sensitive system files, and gain root privileges. The xfrm-ESP variant requires unprivileged user or network namespace creation, while the RxRPC variant depends on the rxrpc module being available on the target system.
7.8 (High)
Affected products
Fixed
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
A flaw was found in the Linux kernel's XFRM ESP-in-TCP subsystem. Unsafe in-place cryptographic processing allows a low-privileged local attacker to write arbitrary bytes into the page cache of read-only files, including sensitive system files. An attacker can exploit this to overwrite privileged binaries and gain root privileges.
7.8 (High)
Affected products
Fixed
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
A flaw was found in the Linux kernel's traffic control packet editing (pedit) subsystem. In tcf_pedit_act(), the copy-on-write (COW) range for skb_ensure_writable() is computed once before iterating over edit keys, but the calculation does not account for runtime header offsets added by typed keys. This can leave part of the target write region without a proper copy-on-write, leading to an out-of-bounds write that corrupts page cache memory. A local attacker with the ability to configure traffic control rules could exploit this to escalate privileges or crash the system.
6.7 (Medium)
Affected products
Fixed
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Low
References
73 references
Acknowledgments
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"text": "Red Hat OpenShift Container Platform release 4.17.55 is now available with\nupdates to packages and images that fix several bugs and add enhancements.\n\n This release includes a security update for Red Hat OpenShift Container\nPlatform 4.17.\n\nRed Hat Product Security has rated this update as having a security impact\nof Critical. A Common Vulnerability Scoring System (CVSS) base score, which\ngives a detailed severity rating, is available for each vulnerability from\nthe CVE link(s) in the References section.",
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"text": "Red Hat OpenShift Container Platform is Red Hat\u0027s cloud computing\nKubernetes application platform solution designed for on-premise or private\ncloud deployments.\n\nThis advisory contains the container images for Red Hat OpenShift Container\nPlatform 4.17.55. See the following advisory for the RPM packages for this\nrelease:\n\nhttps://access.redhat.com/errata/RHSA-2026:34097\n\nSpace precludes documenting all of the container images in this advisory.\nSee the following Release Notes documentation, which will be updated\nshortly for this release, for details about these changes:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.17/html/release_notes/\n\nSecurity Fix(es):\n\n* kernel: ip6_tunnel: clear skb2-\u003ecb[] in ip4ip6_err() (CVE-2026-43037)\n* libcap: libcap: Privilege escalation via TOCTOU race condition in\ncap_set_file() (CVE-2026-4878)\n* OpenSSH: OpenSSH: Privilege escalation via scp legacy protocol when not\npreserving file mode (CVE-2026-35385)\n* sudo: Sudo: Privilege escalation due to failure in privilege drop calls\n(CVE-2026-35535)\n* jq: out-of-bounds read in jv_parse_sized() on error formatting for\nnon-NUL-terminated buffers (CVE-2026-39979)\n* jq: jq: Denial of Service via crafted JSON object causing hash collisions\n(CVE-2026-40164)\n* rsync: Rsync: Use-after-free vulnerability in extended attribute handling\n(CVE-2026-41035)\n* kernel: \"Dirty Frag\" ESP XFRM variant is a new universal Local Privilege\nEscalation (LPE) vulnerability in the Linux kernel (CVE-2026-43284)\n* kernel: \"Fragnesia\" is a variant of Dirty Frag vulnerability in the\nESP/XFRM leading to Local Privilege Escalation (LPE) vulnerability in the\nLinux kernel (CVE-2026-46300)\n* kernel: net/sched: act_pedit: extend the writable skb range per key\n(CVE-2026-46331)\n\nFor more details about the security issue(s), including the impact, a CVSS\nscore, acknowledgments, and other related information, refer to the CVE\npage(s) listed in the References section.\n\nAll OpenShift Container Platform 4.17 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.17/html-single/updating_clusters/index#updating-cluster-cli.",
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"title": "Vulnerability summary"
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"text": "This is an Important flaw. A Time-of-Check-to-Time-of-Use (TOCTOU) race condition in libcap\u0027s cap_set_file() allows a local unprivileged user to escalate privileges. An attacker with write access to a parent directory can exploit a narrow window during file capability updates to redirect capabilities to an attacker-controlled file. This can lead to the injection of elevated privileges into an unintended executable when privileged processes, such as setcap or container tooling, invoke cap_set_file() on attacker-influenced paths.",
"title": "Statement"
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"date": "2026-07-09T08:03:47+00:00",
"details": "For OpenShift Container Platform 4.17 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.17/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n (For x86_64 architecture)\n The image digest is sha256:6f09cb9bc01cfd9f61f9d8297505f7777217c804fab8f5589b9444b8e1284169\n\n (For s390x architecture)\n The image digest is sha256:22a38b418eb7f9435f697123bf117662d4d6b725bb4d3e20042ade7bcc616abb\n\n (For ppc64le architecture)\n The image digest is sha256:24fdfdca3a35e1b783f2eae0a46a69cc62a3b89994bb2367f4530a9249ba4765\n\n (For aarch64 architecture)\n The image digest is sha256:cf3b8c3e3ff5ce4051aaa96edf6d4b471e9ec5312c4378dffc8fc520c8aef66a\n\nAll OpenShift Container Platform 4.17 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.17/html-single/updating_clusters/index#updating-cluster-cli.",
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"attackVector": "LOCAL",
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"baseScore": 6.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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"title": "libcap: libcap: Privilege escalation via TOCTOU race condition in cap_set_file()"
},
{
"cve": "CVE-2026-35385",
"cwe": {
"id": "CWE-281",
"name": "Improper Preservation of Permissions"
},
"discovery_date": "2026-04-02T17:01:07.052864+00:00",
"ids": [
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"text": "2454469"
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"notes": [
{
"category": "description",
"text": "A flaw was found in OpenSSH. When the `scp` command is used by a root user to download a file with the legacy protocol option (`-O`) and without preserving original file permissions (`-p`), the downloaded file can be installed with elevated privileges (setuid or setgid). This unexpected behavior could allow a malicious file to execute with higher permissions than intended, posing a security risk through potential privilege escalation.",
"title": "Vulnerability description"
},
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"text": "OpenSSH: OpenSSH: Privilege escalation via scp legacy protocol when not preserving file mode",
"title": "Vulnerability summary"
},
{
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2454469"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-35385",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-35385"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-35385",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-35385"
},
{
"category": "external",
"summary": "https://marc.info/?l=openssh-unix-dev\u0026m=177513443901484\u0026w=2",
"url": "https://marc.info/?l=openssh-unix-dev\u0026m=177513443901484\u0026w=2"
},
{
"category": "external",
"summary": "https://www.openssh.org/releasenotes.html#10.3p1",
"url": "https://www.openssh.org/releasenotes.html#10.3p1"
},
{
"category": "external",
"summary": "https://www.openwall.com/lists/oss-security/2026/04/02/3",
"url": "https://www.openwall.com/lists/oss-security/2026/04/02/3"
}
],
"release_date": "2026-04-02T16:30:59.615000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-07-09T08:03:47+00:00",
"details": "For OpenShift Container Platform 4.17 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.17/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n (For x86_64 architecture)\n The image digest is sha256:6f09cb9bc01cfd9f61f9d8297505f7777217c804fab8f5589b9444b8e1284169\n\n (For s390x architecture)\n The image digest is sha256:22a38b418eb7f9435f697123bf117662d4d6b725bb4d3e20042ade7bcc616abb\n\n (For ppc64le architecture)\n The image digest is sha256:24fdfdca3a35e1b783f2eae0a46a69cc62a3b89994bb2367f4530a9249ba4765\n\n (For aarch64 architecture)\n The image digest is sha256:cf3b8c3e3ff5ce4051aaa96edf6d4b471e9ec5312c4378dffc8fc520c8aef66a\n\nAll OpenShift Container Platform 4.17 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.17/html-single/updating_clusters/index#updating-cluster-cli.",
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],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:34098"
},
{
"category": "workaround",
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"product_ids": [
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"baseScore": 7.5,
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"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
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"scope": "UNCHANGED",
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},
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"threats": [
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"category": "impact",
"details": "Important"
}
],
"title": "OpenSSH: OpenSSH: Privilege escalation via scp legacy protocol when not preserving file mode"
},
{
"cve": "CVE-2026-35535",
"cwe": {
"id": "CWE-272",
"name": "Least Privilege Violation"
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"discovery_date": "2026-04-03T03:01:03.124541+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
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}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Sudo. A local user could exploit a failure in the setuid, setgid, or setgroups calls, which are used to drop privileges before running the mailer. This oversight allows for privilege escalation, enabling the user to gain elevated access on the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "sudo: Sudo: Privilege escalation due to failure in privilege drop calls",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
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"category": "self",
"summary": "Canonical URL",
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"category": "external",
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2454714"
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{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-35535",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-35535"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-35535",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-35535"
},
{
"category": "external",
"summary": "https://bugs.debian.org/1130593",
"url": "https://bugs.debian.org/1130593"
},
{
"category": "external",
"summary": "https://bugs.launchpad.net/ubuntu/+source/sudo/+bug/2143042",
"url": "https://bugs.launchpad.net/ubuntu/+source/sudo/+bug/2143042"
},
{
"category": "external",
"summary": "https://github.com/sudo-project/sudo/commit/3e474c2f201484be83d994ae10a4e20e8c81bb69",
"url": "https://github.com/sudo-project/sudo/commit/3e474c2f201484be83d994ae10a4e20e8c81bb69"
},
{
"category": "external",
"summary": "https://www.qualys.com/2026/03/10/crack-armor.txt",
"url": "https://www.qualys.com/2026/03/10/crack-armor.txt"
}
],
"release_date": "2026-04-03T02:21:33.584000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-07-09T08:03:47+00:00",
"details": "For OpenShift Container Platform 4.17 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.17/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n (For x86_64 architecture)\n The image digest is sha256:6f09cb9bc01cfd9f61f9d8297505f7777217c804fab8f5589b9444b8e1284169\n\n (For s390x architecture)\n The image digest is sha256:22a38b418eb7f9435f697123bf117662d4d6b725bb4d3e20042ade7bcc616abb\n\n (For ppc64le architecture)\n The image digest is sha256:24fdfdca3a35e1b783f2eae0a46a69cc62a3b89994bb2367f4530a9249ba4765\n\n (For aarch64 architecture)\n The image digest is sha256:cf3b8c3e3ff5ce4051aaa96edf6d4b471e9ec5312c4378dffc8fc520c8aef66a\n\nAll OpenShift Container Platform 4.17 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.17/html-single/updating_clusters/index#updating-cluster-cli.",
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}
],
"scores": [
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"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "sudo: Sudo: Privilege escalation due to failure in privilege drop calls"
},
{
"cve": "CVE-2026-39979",
"cwe": {
"id": "CWE-125",
"name": "Out-of-bounds Read"
},
"discovery_date": "2026-04-13T23:01:01.219840+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2458077"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in jq, a command line JSON processor, specifically in the libjq API. Parsing a malformed JSON input from a non-NUL-terminated buffer using the `jv_parse_sized` function can cause an out-of-bounds read, resulting in an application crash and a possible memory disclosure within the error message generated by the parser.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "jq: out-of-bounds read in jv_parse_sized() on error formatting for non-NUL-terminated buffers",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "To exploit this flaw, an attacker needs to supply malformed JSON from a non-NUL-terminated buffer to an application using the `jv_parse_sized` function. This allows the attacker to trigger the out-of-bounds read, causing an application crash and potentially disclosing memory with no other security impact. As this issue affects the libjq library, it is more likely to be exposed to untrusted input. Due to these reasons, this vulnerability has been rated with an important severity.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
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"9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0"
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},
"references": [
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"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-39979"
},
{
"category": "external",
"summary": "RHBZ#2458077",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2458077"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-39979",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-39979"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-39979",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39979"
},
{
"category": "external",
"summary": "https://github.com/jqlang/jq/commit/2f09060afab23fe9390cce7cb860b10416e1bf5f",
"url": "https://github.com/jqlang/jq/commit/2f09060afab23fe9390cce7cb860b10416e1bf5f"
},
{
"category": "external",
"summary": "https://github.com/jqlang/jq/security/advisories/GHSA-2hhh-px8h-355p",
"url": "https://github.com/jqlang/jq/security/advisories/GHSA-2hhh-px8h-355p"
}
],
"release_date": "2026-04-13T22:18:56.252000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-07-09T08:03:47+00:00",
"details": "For OpenShift Container Platform 4.17 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.17/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n (For x86_64 architecture)\n The image digest is sha256:6f09cb9bc01cfd9f61f9d8297505f7777217c804fab8f5589b9444b8e1284169\n\n (For s390x architecture)\n The image digest is sha256:22a38b418eb7f9435f697123bf117662d4d6b725bb4d3e20042ade7bcc616abb\n\n (For ppc64le architecture)\n The image digest is sha256:24fdfdca3a35e1b783f2eae0a46a69cc62a3b89994bb2367f4530a9249ba4765\n\n (For aarch64 architecture)\n The image digest is sha256:cf3b8c3e3ff5ce4051aaa96edf6d4b471e9ec5312c4378dffc8fc520c8aef66a\n\nAll OpenShift Container Platform 4.17 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.17/html-single/updating_clusters/index#updating-cluster-cli.",
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"9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:34098"
},
{
"category": "workaround",
"details": "To mitigate this issue, manually ensure that every buffer is NUL-terminated before passing it to the \u0027jv_parse_sized\u0027 function.",
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]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.2,
"baseSeverity": "HIGH",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
"version": "3.1"
},
"products": [
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}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "jq: out-of-bounds read in jv_parse_sized() on error formatting for non-NUL-terminated buffers"
},
{
"cve": "CVE-2026-40164",
"cwe": {
"id": "CWE-341",
"name": "Predictable from Observable State"
},
"discovery_date": "2026-04-14T00:01:04.003115+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2458084"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in jq, a command-line JSON processor. A remote attacker could exploit this vulnerability by providing a specially crafted JSON object. This object leverages a weakness in jq\u0027s hashing algorithm, which uses a hardcoded, publicly known seed. By crafting the JSON object to cause hash collisions, an attacker can degrade the performance of JSON object hash table operations, leading to significant CPU exhaustion and a denial of service (DoS) for systems processing the malicious JSON data.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "jq: jq: Denial of Service via crafted JSON object causing hash collisions",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
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"9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0",
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},
"references": [
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"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-40164"
},
{
"category": "external",
"summary": "RHBZ#2458084",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2458084"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-40164",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-40164"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-40164",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40164"
},
{
"category": "external",
"summary": "https://github.com/jqlang/jq/commit/0c7d133c3c7e37c00b6d46b658a02244fdd3c784",
"url": "https://github.com/jqlang/jq/commit/0c7d133c3c7e37c00b6d46b658a02244fdd3c784"
},
{
"category": "external",
"summary": "https://github.com/jqlang/jq/security/advisories/GHSA-wwj8-gxm6-jc29",
"url": "https://github.com/jqlang/jq/security/advisories/GHSA-wwj8-gxm6-jc29"
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"release_date": "2026-04-13T23:40:12.693000+00:00",
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"category": "vendor_fix",
"date": "2026-07-09T08:03:47+00:00",
"details": "For OpenShift Container Platform 4.17 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.17/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n (For x86_64 architecture)\n The image digest is sha256:6f09cb9bc01cfd9f61f9d8297505f7777217c804fab8f5589b9444b8e1284169\n\n (For s390x architecture)\n The image digest is sha256:22a38b418eb7f9435f697123bf117662d4d6b725bb4d3e20042ade7bcc616abb\n\n (For ppc64le architecture)\n The image digest is sha256:24fdfdca3a35e1b783f2eae0a46a69cc62a3b89994bb2367f4530a9249ba4765\n\n (For aarch64 architecture)\n The image digest is sha256:cf3b8c3e3ff5ce4051aaa96edf6d4b471e9ec5312c4378dffc8fc520c8aef66a\n\nAll OpenShift Container Platform 4.17 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.17/html-single/updating_clusters/index#updating-cluster-cli.",
"product_ids": [
"9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:34098"
},
{
"category": "workaround",
"details": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.",
"product_ids": [
"9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "jq: jq: Denial of Service via crafted JSON object causing hash collisions"
},
{
"cve": "CVE-2026-41035",
"cwe": {
"id": "CWE-805",
"name": "Buffer Access with Incorrect Length Value"
},
"discovery_date": "2026-04-16T08:00:54.200357+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2458898"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in rsync. When rsync is configured to handle extended attributes (using the -X or --xattrs option), a remote attacker can exploit a use-after-free vulnerability. This occurs because the receive_xattr function incorrectly processes an untrusted length value during a sorting operation, leading to memory corruption. Successful exploitation can result in a denial of service, causing the rsync process to crash, and may potentially allow for arbitrary code execution.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "rsync: Rsync: Use-after-free vulnerability in extended attribute handling",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is an Important flaw in rsync that allows a remote attacker to cause a denial of service or potentially execute arbitrary code. The vulnerability is present when rsync is used with extended attributes enabled via the `-X` or `--xattrs` option, which is not a default configuration. Exploitation requires the victim to explicitly enable this feature.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-41035"
},
{
"category": "external",
"summary": "RHBZ#2458898",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2458898"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-41035",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-41035"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-41035",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41035"
},
{
"category": "external",
"summary": "https://github.com/RsyncProject/rsync/issues/871",
"url": "https://github.com/RsyncProject/rsync/issues/871"
},
{
"category": "external",
"summary": "https://github.com/RsyncProject/rsync/releases",
"url": "https://github.com/RsyncProject/rsync/releases"
},
{
"category": "external",
"summary": "https://www.openwall.com/lists/oss-security/2026/04/16/2",
"url": "https://www.openwall.com/lists/oss-security/2026/04/16/2"
}
],
"release_date": "2026-04-16T06:53:05.237000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-07-09T08:03:47+00:00",
"details": "For OpenShift Container Platform 4.17 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.17/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n (For x86_64 architecture)\n The image digest is sha256:6f09cb9bc01cfd9f61f9d8297505f7777217c804fab8f5589b9444b8e1284169\n\n (For s390x architecture)\n The image digest is sha256:22a38b418eb7f9435f697123bf117662d4d6b725bb4d3e20042ade7bcc616abb\n\n (For ppc64le architecture)\n The image digest is sha256:24fdfdca3a35e1b783f2eae0a46a69cc62a3b89994bb2367f4530a9249ba4765\n\n (For aarch64 architecture)\n The image digest is sha256:cf3b8c3e3ff5ce4051aaa96edf6d4b471e9ec5312c4378dffc8fc520c8aef66a\n\nAll OpenShift Container Platform 4.17 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.17/html-single/updating_clusters/index#updating-cluster-cli.",
"product_ids": [
"9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0",
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"9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:34098"
},
{
"category": "workaround",
"details": "To mitigate this vulnerability, avoid using the -X or --xattrs options with rsync if extended attribute handling is not essential for your operations. Disabling these options prevents the vulnerable code path from being exercised. This may impact functionality that relies on extended attributes.",
"product_ids": [
"9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0",
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"9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 7.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L",
"version": "3.1"
},
"products": [
"9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "rsync: Rsync: Use-after-free vulnerability in extended attribute handling"
},
{
"cve": "CVE-2026-43037",
"cwe": {
"id": "CWE-843",
"name": "Access of Resource Using Incompatible Type (\u0027Type Confusion\u0027)"
},
"discovery_date": "2026-05-01T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2464351"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the Linux kernel\u0027s IPv6 tunnel implementation. A remote attacker could exploit this flaw by sending malicious ICMPv6 error messages to cause a stack-based buffer overflow in the kernel\u0027s IPv4-over-IPv6 tunnel error handling code. This could result in a kernel crash (denial of service) or potentially allow arbitrary code execution with kernel privileges.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: ip6_tunnel: clear skb2-\u003ecb[] in ip4ip6_err()",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This Critical flaw in the Linux kernel\u0027s IPv6 tunneling error handling can lead to a stack buffer overflow. An unauthenticated remote attacker could exploit this by sending specially crafted network packets, potentially resulting in a denial of service or information disclosure on affected Red Hat Enterprise Linux systems.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-43037"
},
{
"category": "external",
"summary": "RHBZ#2464351",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464351"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-43037",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43037"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-43037",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43037"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2026050102-CVE-2026-43037-0346@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2026050102-CVE-2026-43037-0346@gregkh/T"
}
],
"release_date": "2026-05-01T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-07-09T08:03:47+00:00",
"details": "For OpenShift Container Platform 4.17 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.17/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n (For x86_64 architecture)\n The image digest is sha256:6f09cb9bc01cfd9f61f9d8297505f7777217c804fab8f5589b9444b8e1284169\n\n (For s390x architecture)\n The image digest is sha256:22a38b418eb7f9435f697123bf117662d4d6b725bb4d3e20042ade7bcc616abb\n\n (For ppc64le architecture)\n The image digest is sha256:24fdfdca3a35e1b783f2eae0a46a69cc62a3b89994bb2367f4530a9249ba4765\n\n (For aarch64 architecture)\n The image digest is sha256:cf3b8c3e3ff5ce4051aaa96edf6d4b471e9ec5312c4378dffc8fc520c8aef66a\n\nAll OpenShift Container Platform 4.17 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.17/html-single/updating_clusters/index#updating-cluster-cli.",
"product_ids": [
"9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:34098"
},
{
"category": "workaround",
"details": "Mitigation for this issue is to skip loading the affected module `ip6_tunnel` onto the system till we have a fix available, this can be done by a blacklist mechanism, this will ensure the driver is not loaded at the boot time.\n~~~\nHow do I blacklist a kernel module to prevent it from loading automatically? \nhttps://access.redhat.com/solutions/41278 \n~~~\n\nWe may also want to detection and monitoring an affected system as below:\n~~~\nMonitor for exploitation attempts:\n\n# Enable kernel audit for IPv6 tunnel operations\nauditctl -a always,exit -F arch=b64 -S socket -F a0=10 -F a1=3 -k ipv6_tunnel\n\n# Monitor system logs for kernel panics/crashes\njournalctl -k -p err -f | grep -i \"ip6_tunnel\\|icmp\\|stack\"\n~~~",
"product_ids": [
"9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
"9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0"
]
}
],
"threats": [
{
"category": "impact",
"details": "Critical"
}
],
"title": "kernel: ip6_tunnel: clear skb2-\u003ecb[] in ip4ip6_err()"
},
{
"cve": "CVE-2026-43284",
"cwe": {
"id": "CWE-123",
"name": "Write-what-where Condition"
},
"discovery_date": "2026-05-07T15:56:04.044000+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2467771"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the Linux kernel\u0027s xfrm-ESP and RxRPC subsystems. Unsafe in-place cryptographic processing of shared socket buffer fragments allows a low-privileged local attacker to corrupt page-cache contents of readable files, including sensitive system files, and gain root privileges. The xfrm-ESP variant requires unprivileged user or network namespace creation, while the RxRPC variant depends on the rxrpc module being available on the target system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: \"Dirty Frag\" ESP XFRM variant is a new universal Local Privilege Escalation (LPE) vulnerability in the Linux kernel",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue is classified as Important, rather than Critical severity, because exploitation requires local access to the system. A low-privileged local attacker can exploit this flaw in the Linux kernel\u0027s xfrm-ESP and RxRPC subsystems to gain root privileges by overwriting sensitive system files. Exploitation does not require user interaction, potentially resulting in full compromise of confidentiality, integrity, and availability.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-43284"
},
{
"category": "external",
"summary": "RHBZ#2467771",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467771"
},
{
"category": "external",
"summary": "RHSB-2026-003",
"url": "https://access.redhat.com/security/vulnerabilities/RHSB-2026-003"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-43284",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43284"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-43284",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43284"
},
{
"category": "external",
"summary": "https://dirtyfrag.io/",
"url": "https://dirtyfrag.io/"
}
],
"release_date": "2026-05-07T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-07-09T08:03:47+00:00",
"details": "For OpenShift Container Platform 4.17 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.17/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n (For x86_64 architecture)\n The image digest is sha256:6f09cb9bc01cfd9f61f9d8297505f7777217c804fab8f5589b9444b8e1284169\n\n (For s390x architecture)\n The image digest is sha256:22a38b418eb7f9435f697123bf117662d4d6b725bb4d3e20042ade7bcc616abb\n\n (For ppc64le architecture)\n The image digest is sha256:24fdfdca3a35e1b783f2eae0a46a69cc62a3b89994bb2367f4530a9249ba4765\n\n (For aarch64 architecture)\n The image digest is sha256:cf3b8c3e3ff5ce4051aaa96edf6d4b471e9ec5312c4378dffc8fc520c8aef66a\n\nAll OpenShift Container Platform 4.17 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.17/html-single/updating_clusters/index#updating-cluster-cli.",
"product_ids": [
"9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:34098"
},
{
"category": "workaround",
"details": "See the security bulletin for a detailed mitigation procedure.",
"product_ids": [
"9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
"9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "kernel: \"Dirty Frag\" ESP XFRM variant is a new universal Local Privilege Escalation (LPE) vulnerability in the Linux kernel"
},
{
"cve": "CVE-2026-46300",
"cwe": {
"id": "CWE-123",
"name": "Write-what-where Condition"
},
"discovery_date": "2026-05-13T13:28:21.270000+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2477015"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the Linux kernel\u0027s XFRM ESP-in-TCP subsystem. Unsafe in-place cryptographic processing allows a low-privileged local attacker to write arbitrary bytes into the page cache of read-only files, including sensitive system files. An attacker can exploit this to overwrite privileged binaries and gain root privileges.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: \"Fragnesia\" is a variant of Dirty Frag vulnerability in the ESP/XFRM leading to Local Privilege Escalation (LPE) vulnerability in the Linux kernel",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue is classified as Important, rather than Critical severity, because exploitation requires local access to the system. A low-privileged local attacker can exploit this flaw in the Linux kernel\u0027s XFRM ESP-in-TCP subsystem to gain root privileges by overwriting sensitive system files. Exploitation does not require user interaction, potentially resulting in full compromise of confidentiality, integrity, and availability.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-46300"
},
{
"category": "external",
"summary": "RHBZ#2477015",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2477015"
},
{
"category": "external",
"summary": "RHSB-2026-003",
"url": "https://access.redhat.com/security/vulnerabilities/RHSB-2026-003"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-46300",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46300"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-46300",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46300"
}
],
"release_date": "2026-05-13T12:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-07-09T08:03:47+00:00",
"details": "For OpenShift Container Platform 4.17 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.17/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n (For x86_64 architecture)\n The image digest is sha256:6f09cb9bc01cfd9f61f9d8297505f7777217c804fab8f5589b9444b8e1284169\n\n (For s390x architecture)\n The image digest is sha256:22a38b418eb7f9435f697123bf117662d4d6b725bb4d3e20042ade7bcc616abb\n\n (For ppc64le architecture)\n The image digest is sha256:24fdfdca3a35e1b783f2eae0a46a69cc62a3b89994bb2367f4530a9249ba4765\n\n (For aarch64 architecture)\n The image digest is sha256:cf3b8c3e3ff5ce4051aaa96edf6d4b471e9ec5312c4378dffc8fc520c8aef66a\n\nAll OpenShift Container Platform 4.17 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.17/html-single/updating_clusters/index#updating-cluster-cli.",
"product_ids": [
"9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:34098"
},
{
"category": "workaround",
"details": "See the security bulletin for a detailed mitigation procedure.",
"product_ids": [
"9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
"9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "kernel: \"Fragnesia\" is a variant of Dirty Frag vulnerability in the ESP/XFRM leading to Local Privilege Escalation (LPE) vulnerability in the Linux kernel"
},
{
"cve": "CVE-2026-46331",
"cwe": {
"id": "CWE-787",
"name": "Out-of-bounds Write"
},
"discovery_date": "2026-05-18T06:17:23.219000+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2479492"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the Linux kernel\u0027s traffic control packet editing (pedit) subsystem. In tcf_pedit_act(), the copy-on-write (COW) range for skb_ensure_writable() is computed once before iterating over edit keys, but the calculation does not account for runtime header offsets added by typed keys. This can leave part of the target write region without a proper copy-on-write, leading to an out-of-bounds write that corrupts page cache memory. A local attacker with the ability to configure traffic control rules could exploit this to escalate privileges or crash the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: net/sched: act_pedit: extend the writable skb range per key",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat rates this flaw as Important severity.\n\nThis vulnerability is in the kernel\u0027s traffic control (tc) pedit action, which requires CAP_NET_ADMIN capability to configure. By default in Red Hat Enterprise Linux, this limits exploitation to the root user or processes explicitly granted network administration capabilities. However, in some circumstances unprivileged users may obtain CAP_NET_ADMIN within user namespaces. Successful exploitation could lead to arbitrary code execution in kernel context or a system crash.\n\nRed Hat Enterprise Linux 7 and earlier are not affected. Within OpenShift Container Platform, the vulnerable module is not loaded by default, reducing the severity to Low.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-46331"
},
{
"category": "external",
"summary": "RHBZ#2479492",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2479492"
},
{
"category": "external",
"summary": "RHSB-2026-008",
"url": "https://access.redhat.com/security/vulnerabilities/RHSB-2026-008"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-46331",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46331"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-46331",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46331"
},
{
"category": "external",
"summary": "https://lore.kernel.org/netdev/20260516162825.1480113-1-rollkingzzc@gmail.com/",
"url": "https://lore.kernel.org/netdev/20260516162825.1480113-1-rollkingzzc@gmail.com/"
}
],
"release_date": "2026-05-18T04:04:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-07-09T08:03:47+00:00",
"details": "For OpenShift Container Platform 4.17 see the following documentation,\nwhich will be updated shortly for this release, for important instructions\non how to upgrade your cluster and fully apply this asynchronous errata\nupdate:\n\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.17/html/release_notes/\n\nYou may download the oc tool and use it to inspect release image metadata\nfor x86_64, s390x, ppc64le, and aarch64 architectures. The image digests\nmay be found at\nhttps://quay.io/repository/openshift-release-dev/ocp-release?tab=tags.\n\nThe sha values for the release are as follows:\n\n (For x86_64 architecture)\n The image digest is sha256:6f09cb9bc01cfd9f61f9d8297505f7777217c804fab8f5589b9444b8e1284169\n\n (For s390x architecture)\n The image digest is sha256:22a38b418eb7f9435f697123bf117662d4d6b725bb4d3e20042ade7bcc616abb\n\n (For ppc64le architecture)\n The image digest is sha256:24fdfdca3a35e1b783f2eae0a46a69cc62a3b89994bb2367f4530a9249ba4765\n\n (For aarch64 architecture)\n The image digest is sha256:cf3b8c3e3ff5ce4051aaa96edf6d4b471e9ec5312c4378dffc8fc520c8aef66a\n\nAll OpenShift Container Platform 4.17 users are advised to upgrade to these\nupdated packages and images when they are available in the appropriate\nrelease channel. To check for available updates, use the OpenShift CLI (oc)\nor web console. Instructions for upgrading a cluster are available at\nhttps://docs.redhat.com/en/documentation/openshift_container_platform/4.17/html-single/updating_clusters/index#updating-cluster-cli.",
"product_ids": [
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"9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:34098"
},
{
"category": "workaround",
"details": "See the security bulletin for a detailed mitigation procedure.",
"product_ids": [
"9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
"9Base-RHOSE-4.17:rhcos-aarch64-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-ppc64le-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-s390x-417.94.202606250942-0",
"9Base-RHOSE-4.17:rhcos-x86_64-417.94.202606250942-0"
]
}
],
"threats": [
{
"category": "impact",
"details": "Low"
}
],
"title": "kernel: net/sched: act_pedit: extend the writable skb range per key"
}
]
}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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