rhsa-2023_7431
Vulnerability from csaf_redhat
Published
2023-11-21 15:30
Modified
2024-11-15 17:36
Summary
Red Hat Security Advisory: kernel-rt security update
Notes
Topic
An update for kernel-rt is now available for Red Hat Enterprise Linux 8.2 Telecommunications Update Service.
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
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.
Security Fix(es):
* kernel: Use-after-free vulnerability in the Linux Kernel traffic control index filter (CVE-2023-1829)
* kernel: net/sched: cls_u32 component reference counter leak if tcf_change_indev() fails (CVE-2023-3609)
* kernel: net/sched: cls_fw component can be exploited as result of failure in tcf_change_indev function (CVE-2023-3776)
* kernel: netfilter: use-after-free due to improper element removal in nft_pipapo_remove() (CVE-2023-4004)
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.
{ "document": { "aggregate_severity": { "namespace": "https://access.redhat.com/security/updates/classification/", "text": "Important" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "summary", "text": "An update for kernel-rt is now available for Red Hat Enterprise Linux 8.2 Telecommunications Update Service.\n\nRed 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.", "title": "Topic" }, { "category": "general", "text": "The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.\n\nSecurity Fix(es):\n\n* kernel: Use-after-free vulnerability in the Linux Kernel traffic control index filter (CVE-2023-1829)\n\n* kernel: net/sched: cls_u32 component reference counter leak if tcf_change_indev() fails (CVE-2023-3609)\n\n* kernel: net/sched: cls_fw component can be exploited as result of failure in tcf_change_indev function (CVE-2023-3776)\n\n* kernel: netfilter: use-after-free due to improper element removal in nft_pipapo_remove() (CVE-2023-4004)\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.", "title": "Details" }, { "category": "legal_disclaimer", "text": "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.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://access.redhat.com/security/team/contact/", "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.", "name": "Red Hat Product Security", "namespace": "https://www.redhat.com" }, "references": [ { "category": "self", "summary": "https://access.redhat.com/errata/RHSA-2023:7431", "url": "https://access.redhat.com/errata/RHSA-2023:7431" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#important", "url": "https://access.redhat.com/security/updates/classification/#important" }, { "category": "external", "summary": "2188470", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2188470" }, { "category": "external", "summary": "2225097", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2225097" }, { "category": "external", "summary": "2225201", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2225201" }, { "category": "external", "summary": "2225275", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2225275" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2023/rhsa-2023_7431.json" } ], "title": "Red Hat Security Advisory: kernel-rt security update", "tracking": { "current_release_date": "2024-11-15T17:36:37+00:00", "generator": { "date": "2024-11-15T17:36:37+00:00", "engine": { "name": "Red Hat SDEngine", "version": "4.2.1" } }, "id": "RHSA-2023:7431", "initial_release_date": "2023-11-21T15:30:04+00:00", "revision_history": [ { "date": "2023-11-21T15:30:04+00:00", "number": "1", "summary": "Initial version" }, { "date": "2023-11-21T15:30:04+00:00", "number": "2", "summary": "Last updated version" }, { "date": "2024-11-15T17:36:37+00:00", 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[ { "cve": "CVE-2023-1829", "cwe": { "id": "CWE-119", "name": "Improper Restriction of Operations within the Bounds of a Memory Buffer" }, "discovery_date": "2023-04-20T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2188470" } ], "notes": [ { "category": "description", "text": "A use-after-free vulnerability was found in the traffic control index filter (tcindex) in the Linux kernel. The tcindex_delete does not properly deactivate filters, which can later lead to double freeing the structure. This flaw allows a local attacker to cause a use-after-free problem, leading to privilege escalation.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: Use-after-free vulnerability in the Linux Kernel traffic control index filter", "title": "Vulnerability summary" }, { "category": "other", "text": "For Red Hat Enterprise Linux 7, please use the mitigation to disable module cls_tcindex, because similar use-after-free issues also exists in the Linux Kernel\u0027s traffic control index filter and will not be fixed before Red Hat Enterprise Linux 8.", "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": [ "NFV-8.2.0.Z.TUS:kernel-rt-0:4.18.0-193.119.1.rt13.170.el8_2.src", 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vulnerability in the Linux Kernel traffic control index filter" }, { "cve": "CVE-2023-3609", "cwe": { "id": "CWE-415", "name": "Double Free" }, "discovery_date": "2023-07-24T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2225201" } ], "notes": [ { "category": "description", "text": "A double-free flaw was found in u32_set_parms in net/sched/cls_u32.c in the Network Scheduler component in the Linux kernel. This flaw allows a local attacker to use a failure event to mishandle the reference counter, leading to a local privilege escalation threat.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: net/sched: cls_u32 component reference counter leak if tcf_change_indev() fails", "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": [ "NFV-8.2.0.Z.TUS:kernel-rt-0:4.18.0-193.119.1.rt13.170.el8_2.src", "NFV-8.2.0.Z.TUS:kernel-rt-0:4.18.0-193.119.1.rt13.170.el8_2.x86_64", "NFV-8.2.0.Z.TUS:kernel-rt-core-0:4.18.0-193.119.1.rt13.170.el8_2.x86_64", "NFV-8.2.0.Z.TUS:kernel-rt-debug-0:4.18.0-193.119.1.rt13.170.el8_2.x86_64", 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cls_u32 component reference counter leak if tcf_change_indev() fails" }, { "cve": "CVE-2023-3776", "cwe": { "id": "CWE-416", "name": "Use After Free" }, "discovery_date": "2023-07-24T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2225097" } ], "notes": [ { "category": "description", "text": "A use-after-free vulnerability was found in fw_set_parms in net/sched/cls_fw.c in network scheduler sub-component in the Linux Kernel. This issue occurs due to a missing sanity check during cleanup at the time of failure, leading to a misleading reference. This may allow a local attacker to gain local privilege escalation.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: net/sched: cls_fw component can be exploited as result of failure in tcf_change_indev function", "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": [ "NFV-8.2.0.Z.TUS:kernel-rt-0:4.18.0-193.119.1.rt13.170.el8_2.src", "NFV-8.2.0.Z.TUS:kernel-rt-0:4.18.0-193.119.1.rt13.170.el8_2.x86_64", "NFV-8.2.0.Z.TUS:kernel-rt-core-0:4.18.0-193.119.1.rt13.170.el8_2.x86_64", "NFV-8.2.0.Z.TUS:kernel-rt-debug-0:4.18.0-193.119.1.rt13.170.el8_2.x86_64", "NFV-8.2.0.Z.TUS:kernel-rt-debug-core-0:4.18.0-193.119.1.rt13.170.el8_2.x86_64", 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cls_fw component can be exploited as result of failure in tcf_change_indev function" }, { "cve": "CVE-2023-4004", "cwe": { "id": "CWE-416", "name": "Use After Free" }, "discovery_date": "2023-07-24T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2225275" } ], "notes": [ { "category": "description", "text": "A use-after-free flaw was found in the Linux kernel\u0027s netfilter in the way a user triggers the nft_pipapo_remove function with the element, without a NFT_SET_EXT_KEY_END. This issue could allow a local user to crash the system or potentially escalate their privileges on the system.", "title": "Vulnerability description" }, { "category": "summary", "text": "kernel: netfilter: use-after-free due to improper element removal in nft_pipapo_remove()", "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": [ "NFV-8.2.0.Z.TUS:kernel-rt-0:4.18.0-193.119.1.rt13.170.el8_2.src", "NFV-8.2.0.Z.TUS:kernel-rt-0:4.18.0-193.119.1.rt13.170.el8_2.x86_64", "NFV-8.2.0.Z.TUS:kernel-rt-core-0:4.18.0-193.119.1.rt13.170.el8_2.x86_64", "NFV-8.2.0.Z.TUS:kernel-rt-debug-0:4.18.0-193.119.1.rt13.170.el8_2.x86_64", "NFV-8.2.0.Z.TUS:kernel-rt-debug-core-0:4.18.0-193.119.1.rt13.170.el8_2.x86_64", 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Sightings
Author | Source | Type | Date |
---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.