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CERTFR-2022-AVI-890
Vulnerability from certfr_avis
De multiples vulnérabilités ont été corrigées dans le noyau Linux d'Ubuntu. Elles permettent à un attaquant de provoquer un déni de service à distance, une atteinte à la confidentialité des données, un contournement de la politique de sécurité et une exécution de code arbitraire.
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 18.04 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-2022-32296",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-32296"
},
{
"name": "CVE-2021-33655",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-33655"
},
{
"name": "CVE-2022-1012",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-1012"
},
{
"name": "CVE-2022-36946",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-36946"
},
{
"name": "CVE-2022-1729",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-1729"
},
{
"name": "CVE-2022-2503",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-2503"
}
],
"initial_release_date": "2022-10-07T00:00:00",
"last_revision_date": "2022-10-07T00:00:00",
"links": [
{
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu du 06 oct. 2022",
"url": "https://ubuntu.com/security/notices/USN-5660-1"
}
],
"reference": "CERTFR-2022-AVI-890",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2022-10-07T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Ex\u00e9cution de code arbitraire"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 corrig\u00e9es dans \u003cspan\nclass=\"textit\"\u003ele noyau Linux d\u0027Ubuntu\u003c/span\u003e. Elles permettent \u00e0 un\nattaquant de provoquer un d\u00e9ni de service \u00e0 distance, une atteinte \u00e0 la\nconfidentialit\u00e9 des donn\u00e9es, un contournement de la politique de\ns\u00e9curit\u00e9 et une ex\u00e9cution de code arbitraire.\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-5660-1 du 06 oct. 2022",
"url": null
}
]
}
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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"baseSeverity": "HIGH",
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"scope": "UNCHANGED",
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"options": [
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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-2022-32296 (GCVE-0-2022-32296)
Vulnerability from cvelistv5
Published
2022-06-05 21:53
Modified
2024-08-03 07:39
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The Linux kernel before 5.17.9 allows TCP servers to identify clients by observing what source ports are used. This occurs because of use of Algorithm 4 ("Double-Hash Port Selection Algorithm") of RFC 6056.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2022-1729 (GCVE-0-2022-1729)
Vulnerability from cvelistv5
Published
2022-09-01 00:00
Modified
2024-08-03 00:16
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A race condition was found the Linux kernel in perf_event_open() which can be exploited by an unprivileged user to gain root privileges. The bug allows to build several exploit primitives such as kernel address information leak, arbitrary execution, etc.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| n/a | linux kernel |
Version: linux kernel 5.18 rc9 |
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CVE-2022-2503 (GCVE-0-2022-2503)
Vulnerability from cvelistv5
Published
2022-08-12 00:00
Modified
2025-04-21 13:50
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-302 - Authentication Bypass by Assumed-Immutable Data
Summary
Dm-verity is used for extending root-of-trust to root filesystems. LoadPin builds on this property to restrict module/firmware loads to just the trusted root filesystem. Device-mapper table reloads currently allow users with root privileges to switch out the target with an equivalent dm-linear target and bypass verification till reboot. This allows root to bypass LoadPin and can be used to load untrusted and unverified kernel modules and firmware, which implies arbitrary kernel execution and persistence for peripherals that do not verify firmware updates. We recommend upgrading past commit 4caae58406f8ceb741603eee460d79bacca9b1b5
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux Kernel | Linux Kernel |
Version: unspecified < 4caae58406f8ceb741603eee460d79bacca9b1b5 |
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CVE-2022-1012 (GCVE-0-2022-1012)
Vulnerability from cvelistv5
Published
2022-08-05 00:00
Modified
2024-08-02 23:47
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
A memory leak problem was found in the TCP source port generation algorithm in net/ipv4/tcp.c due to the small table perturb size. This flaw may allow an attacker to information leak and may cause a denial of service problem.
References
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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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