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CERTFR-2021-AVI-742
Vulnerability from certfr_avis - Published: 2021-09-30 - Updated: 2021-09-30
De multiples vulnérabilités ont été découvertes dans le noyau Linux d'Ubuntu. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, 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).
NoneImpacted products
References
| Title | Publication Time | Tags | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Ubuntu 16.04 ESM",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 18.04 LTS",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 21.04",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 20.04 LTS",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 14.04 ESM",
"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-2021-38205",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-38205"
},
{
"name": "CVE-2021-34556",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-34556"
},
{
"name": "CVE-2021-3679",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3679"
},
{
"name": "CVE-2021-38204",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-38204"
},
{
"name": "CVE-2021-38166",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-38166"
},
{
"name": "CVE-2021-38160",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-38160"
},
{
"name": "CVE-2021-38199",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-38199"
},
{
"name": "CVE-2021-41073",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-41073"
},
{
"name": "CVE-2021-38203",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-38203"
},
{
"name": "CVE-2021-37159",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-37159"
},
{
"name": "CVE-2021-40490",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-40490"
},
{
"name": "CVE-2021-22543",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-22543"
},
{
"name": "CVE-2021-38202",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-38202"
},
{
"name": "CVE-2021-33624",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-33624"
},
{
"name": "CVE-2021-37576",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-37576"
},
{
"name": "CVE-2021-3612",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3612"
},
{
"name": "CVE-2021-3732",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3732"
},
{
"name": "CVE-2021-38201",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-38201"
},
{
"name": "CVE-2021-35477",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-35477"
}
],
"initial_release_date": "2021-09-30T00:00:00",
"last_revision_date": "2021-09-30T00:00:00",
"links": [],
"reference": "CERTFR-2021-AVI-742",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2021-09-30T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
},
{
"description": "\u00c9l\u00e9vation de privil\u00e8ges"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans le noyau Linux\nd\u0027Ubuntu. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer\nune ex\u00e9cution de code arbitraire \u00e0 distance, un d\u00e9ni de service \u00e0\ndistance et une atteinte \u00e0 la confidentialit\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-5092-1 du 28 septembre 2021",
"url": "https://ubuntu.com/security/notices/USN-5092-1"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-5092-2 du 29 septembre 2021",
"url": "https://ubuntu.com/security/notices/USN-5092-2"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-5091-1 du 28 septembre 2021",
"url": "https://ubuntu.com/security/notices/USN-5091-1"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-5094-1 du 29 septembre 2021",
"url": "https://ubuntu.com/security/notices/USN-5094-1"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-5096-1 du 29 septembre 2021",
"url": "https://ubuntu.com/security/notices/USN-5096-1"
}
]
}
CVE-2021-38166 (GCVE-0-2021-38166)
Vulnerability from cvelistv5 – Published: 2021-08-07 17:50 – Updated: 2024-08-04 01:37
VLAI
EPSS
Summary
In kernel/bpf/hashtab.c in the Linux kernel through 5.13.8, there is an integer overflow and out-of-bounds write when many elements are placed in a single bucket. NOTE: exploitation might be impractical without the CAP_SYS_ADMIN capability.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://lore.kernel.org/bpf/20210806150419.109658… | x_refsource_MISC |
| https://git.kernel.org/pub/scm/linux/kernel/git/b… | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://security.netapp.com/advisory/ntap-2021090… | x_refsource_CONFIRM |
| https://www.debian.org/security/2021/dsa-4978 | vendor-advisoryx_refsource_DEBIAN |
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CVE-2021-38199 (GCVE-0-2021-38199)
Vulnerability from cvelistv5 – Published: 2021-08-08 19:27 – Updated: 2024-08-04 01:37
VLAI
EPSS
Summary
fs/nfs/nfs4client.c in the Linux kernel before 5.13.4 has incorrect connection-setup ordering, which allows operators of remote NFSv4 servers to cause a denial of service (hanging of mounts) by arranging for those servers to be unreachable during trunking detection.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://cdn.kernel.org/pub/linux/kernel/v5.x/Chan… | x_refsource_MISC |
| https://github.com/torvalds/linux/commit/dd99e9f9… | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2021090… | x_refsource_CONFIRM |
| https://www.debian.org/security/2021/dsa-4978 | vendor-advisoryx_refsource_DEBIAN |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
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CVE-2021-38201 (GCVE-0-2021-38201)
Vulnerability from cvelistv5 – Published: 2021-08-08 19:26 – Updated: 2024-08-04 01:37
VLAI
EPSS
Summary
net/sunrpc/xdr.c in the Linux kernel before 5.13.4 allows remote attackers to cause a denial of service (xdr_set_page_base slab-out-of-bounds access) by performing many NFS 4.2 READ_PLUS operations.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://cdn.kernel.org/pub/linux/kernel/v5.x/Chan… | x_refsource_MISC |
| https://github.com/torvalds/linux/commit/6d1c0f3d… | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2021090… | x_refsource_CONFIRM |
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CVE-2021-38202 (GCVE-0-2021-38202)
Vulnerability from cvelistv5 – Published: 2021-08-08 19:25 – Updated: 2026-05-12 10:12
VLAI
EPSS
Summary
fs/nfsd/trace.h in the Linux kernel before 5.13.4 might allow remote attackers to cause a denial of service (out-of-bounds read in strlen) by sending NFS traffic when the trace event framework is being used for nfsd.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://cdn.kernel.org/pub/linux/kernel/v5.x/Chan… | x_refsource_MISC |
| https://github.com/torvalds/linux/commit/7b08cf62… | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2021090… | x_refsource_CONFIRM |
| https://cert-portal.siemens.com/productcert/html/… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Siemens | SIMATIC S7-1500 TM MFP - GNU/Linux subsystem |
Affected:
0 , < *
(custom)
|
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CVE-2021-38203 (GCVE-0-2021-38203)
Vulnerability from cvelistv5 – Published: 2021-08-08 19:25 – Updated: 2024-08-04 01:37
VLAI
EPSS
Summary
btrfs in the Linux kernel before 5.13.4 allows attackers to cause a denial of service (deadlock) via processes that trigger allocation of new system chunks during times when there is a shortage of free space in the system space_info.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://cdn.kernel.org/pub/linux/kernel/v5.x/Chan… | x_refsource_MISC |
| https://github.com/torvalds/linux/commit/1cb3db1c… | x_refsource_MISC |
| https://security.netapp.com/advisory/ntap-2021090… | x_refsource_CONFIRM |
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CVE-2021-38204 (GCVE-0-2021-38204)
Vulnerability from cvelistv5 – Published: 2021-08-08 19:25 – Updated: 2024-08-04 01:37
VLAI
EPSS
Summary
drivers/usb/host/max3421-hcd.c in the Linux kernel before 5.13.6 allows physically proximate attackers to cause a denial of service (use-after-free and panic) by removing a MAX-3421 USB device in certain situations.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/torvalds/linux/commit/b5fdf5c6… | x_refsource_MISC |
| https://cdn.kernel.org/pub/linux/kernel/v5.x/Chan… | x_refsource_MISC |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
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CVE-2021-38205 (GCVE-0-2021-38205)
Vulnerability from cvelistv5 – Published: 2021-08-08 19:23 – Updated: 2024-08-04 01:37
VLAI
EPSS
Summary
drivers/net/ethernet/xilinx/xilinx_emaclite.c in the Linux kernel before 5.13.3 makes it easier for attackers to defeat an ASLR protection mechanism because it prints a kernel pointer (i.e., the real IOMEM pointer).
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/torvalds/linux/commit/d0d62baa… | x_refsource_MISC |
| https://cdn.kernel.org/pub/linux/kernel/v5.x/Chan… | x_refsource_MISC |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
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CVE-2021-40490 (GCVE-0-2021-40490)
Vulnerability from cvelistv5 – Published: 2021-09-03 00:50 – Updated: 2024-08-04 02:44
VLAI
EPSS
Summary
A race condition was discovered in ext4_write_inline_data_end in fs/ext4/inline.c in the ext4 subsystem in the Linux kernel through 5.13.13.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://git.kernel.org/pub/scm/linux/kernel/git/t… | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://www.debian.org/security/2021/dsa-4978 | vendor-advisoryx_refsource_DEBIAN |
| https://security.netapp.com/advisory/ntap-2021100… | x_refsource_CONFIRM |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
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CVE-2021-41073 (GCVE-0-2021-41073)
Vulnerability from cvelistv5 – Published: 2021-09-19 16:02 – Updated: 2024-08-04 02:59
VLAI
EPSS
Summary
loop_rw_iter in fs/io_uring.c in the Linux kernel 5.10 through 5.14.6 allows local users to gain privileges by using IORING_OP_PROVIDE_BUFFERS to trigger a free of a kernel buffer, as demonstrated by using /proc/<pid>/maps for exploitation.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
7 references
| URL | Tags |
|---|---|
| http://www.openwall.com/lists/oss-security/2021/09/18/2 | mailing-listx_refsource_MLIST |
| https://git.kernel.org/pub/scm/linux/kernel/git/t… | x_refsource_MISC |
| https://www.debian.org/security/2021/dsa-4978 | vendor-advisoryx_refsource_DEBIAN |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://security.netapp.com/advisory/ntap-2021101… | x_refsource_CONFIRM |
| http://www.openwall.com/lists/oss-security/2022/06/04/4 | mailing-listx_refsource_MLIST |
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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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