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CERTFR-2022-AVI-854
Vulnerability from certfr_avis
De multiples vulnérabilités ont été découvertes dans le noyau Linux d'Ubuntu. Elles permettent à un attaquant de provoquer une exécution de code arbitraire, un déni de service à distance et une atteinte à la confidentialité des données.
Solution
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
NoneReferences
| Title | Publication Time | Tags | |||
|---|---|---|---|---|---|
|
|||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Ubuntu 22.04 LTS",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
}
],
"affected_systems_content": null,
"content": "## Solution\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des\ncorrectifs (cf. section Documentation).\n",
"cves": [
{
"name": "CVE-2022-33741",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-33741"
},
{
"name": "CVE-2022-33742",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-33742"
},
{
"name": "CVE-2021-33655",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-33655"
},
{
"name": "CVE-2022-33740",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-33740"
},
{
"name": "CVE-2022-34494",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-34494"
},
{
"name": "CVE-2022-33744",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-33744"
},
{
"name": "CVE-2022-2318",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-2318"
},
{
"name": "CVE-2022-36946",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-36946"
},
{
"name": "CVE-2022-33743",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-33743"
},
{
"name": "CVE-2022-34495",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-34495"
},
{
"name": "CVE-2022-26365",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-26365"
}
],
"initial_release_date": "2022-09-26T00:00:00",
"last_revision_date": "2022-09-26T00:00:00",
"links": [],
"reference": "CERTFR-2022-AVI-854",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2022-09-26T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Ex\u00e9cution de code arbitraire"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans le noyau Linux\nd\u0027Ubuntu. Elles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de\ncode arbitraire, un d\u00e9ni de service \u00e0 distance et une atteinte \u00e0 la\nconfidentialit\u00e9 des donn\u00e9es.\n",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans le noyau Linux d\u0027Ubuntu",
"vendor_advisories": [
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-5635-1 du 23 septembre 2022",
"url": "https://ubuntu.com/security/notices/USN-5635-1"
}
]
}
CVE-2022-26365 (GCVE-0-2022-26365)
Vulnerability from cvelistv5
Published
2022-07-05 12:50
Modified
2024-08-03 05:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742).
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
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CVE-2022-36946 (GCVE-0-2022-36946)
Vulnerability from cvelistv5
Published
2022-07-27 00:00
Modified
2025-05-05 16:13
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
nfqnl_mangle in net/netfilter/nfnetlink_queue.c in the Linux kernel through 5.18.14 allows remote attackers to cause a denial of service (panic) because, in the case of an nf_queue verdict with a one-byte nfta_payload attribute, an skb_pull can encounter a negative skb->len.
References
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"url": "https://www.debian.org/security/2022/dsa-5207"
},
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"url": "https://security.netapp.com/advisory/ntap-20220901-0007/"
},
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"name": "[debian-lts-announce] 20220911 [SECURITY] [DLA 3102-1] linux-5.10 new package",
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CVE-2021-33655 (GCVE-0-2021-33655)
Vulnerability from cvelistv5
Published
2022-07-18 14:45
Modified
2024-08-03 23:58
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-787 - Out-of-bounds Write
Summary
When sending malicous data to kernel by ioctl cmd FBIOPUT_VSCREENINFO,kernel will write memory out of bounds.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2022-34494 (GCVE-0-2022-34494)
Vulnerability from cvelistv5
Published
2022-06-26 15:28
Modified
2024-08-03 09:15
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
rpmsg_virtio_add_ctrl_dev in drivers/rpmsg/virtio_rpmsg_bus.c in the Linux kernel before 5.18.4 has a double free.
References
| URL | Tags | |
|---|---|---|
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CVE-2022-33743 (GCVE-0-2022-33743)
Vulnerability from cvelistv5
Published
2022-07-05 12:50
Modified
2024-08-03 08:09
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
network backend may cause Linux netfront to use freed SKBs While adding logic to support XDP (eXpress Data Path), a code label was moved in a way allowing for SKBs having references (pointers) retained for further processing to nevertheless be freed.
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| URL | Tags | |||||||||||||
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CVE-2022-33740 (GCVE-0-2022-33740)
Vulnerability from cvelistv5
Published
2022-07-05 12:50
Modified
2024-08-03 08:09
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742).
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2022-33742 (GCVE-0-2022-33742)
Vulnerability from cvelistv5
Published
2022-07-05 12:50
Modified
2024-08-03 08:09
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742).
References
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CVE-2022-2318 (GCVE-0-2022-2318)
Vulnerability from cvelistv5
Published
2022-07-06 00:00
Modified
2024-08-03 00:32
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
There are use-after-free vulnerabilities caused by timer handler in net/rose/rose_timer.c of linux that allow attackers to crash linux kernel without any privileges.
References
Impacted products
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CVE-2022-34495 (GCVE-0-2022-34495)
Vulnerability from cvelistv5
Published
2022-06-26 15:28
Modified
2024-08-03 09:15
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
rpmsg_probe in drivers/rpmsg/virtio_rpmsg_bus.c in the Linux kernel before 5.18.4 has a double free.
References
| URL | Tags | |
|---|---|---|
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CVE-2022-33744 (GCVE-0-2022-33744)
Vulnerability from cvelistv5
Published
2022-07-05 12:50
Modified
2024-08-03 08:09
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Arm guests can cause Dom0 DoS via PV devices When mapping pages of guests on Arm, dom0 is using an rbtree to keep track of the foreign mappings. Updating of that rbtree is not always done completely with the related lock held, resulting in a small race window, which can be used by unprivileged guests via PV devices to cause inconsistencies of the rbtree. These inconsistencies can lead to Denial of Service (DoS) of dom0, e.g. by causing crashes or the inability to perform further mappings of other guests' memory pages.
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CVE-2022-33741 (GCVE-0-2022-33741)
Vulnerability from cvelistv5
Published
2022-07-05 12:50
Modified
2024-08-03 08:09
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- unknown
Summary
Linux disk/nic frontends data leaks T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Linux Block and Network PV device frontends don't zero memory regions before sharing them with the backend (CVE-2022-26365, CVE-2022-33740). Additionally the granularity of the grant table doesn't allow sharing less than a 4K page, leading to unrelated data residing in the same 4K page as data shared with a backend being accessible by such backend (CVE-2022-33741, CVE-2022-33742).
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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{
"name": "[oss-security] 20220705 Xen Security Advisory 403 v3 (CVE-2022-26365,CVE-2022-33740,CVE-2022-33741,CVE-2022-33742) - Linux disk/nic frontends data leaks",
"refsource": "MLIST",
"url": "http://www.openwall.com/lists/oss-security/2022/07/05/6"
},
{
"name": "FEDORA-2022-c4ec706488",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IGFTRZ66KQYTSYIRT5FRHF5D6O72NWOP/"
},
{
"name": "FEDORA-2022-2c9f8224f8",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RKRXZ4LHGCGMOG24ZCEJNY6R2BTS4S2Q/"
},
{
"name": "DSA-5191",
"refsource": "DEBIAN",
"url": "https://www.debian.org/security/2022/dsa-5191"
},
{
"name": "[debian-lts-announce] 20221002 [SECURITY] [DLA 3131-1] linux security update",
"refsource": "MLIST",
"url": "https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html"
}
]
},
"workaround": {
"workaround_data": {
"description": {
"description_data": [
{
"lang": "eng",
"value": "There is no mitigation available other than not using PV devices in case\na backend is suspected to be potentially malicious."
}
]
}
}
}
}
}
},
"cveMetadata": {
"assignerOrgId": "23aa2041-22e1-471f-9209-9b7396fa234f",
"assignerShortName": "XEN",
"cveId": "CVE-2022-33741",
"datePublished": "2022-07-05T12:50:33",
"dateReserved": "2022-06-15T00:00:00",
"dateUpdated": "2024-08-03T08:09:22.659Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
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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.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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.
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