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CERTFR-2021-AVI-752
Vulnerability from certfr_avis - Published: - Updated:
De multiples vulnérabilités ont été découvertes dans le noyau Linux de Red Hat. Elles permettent à un attaquant de provoquer une atteinte à l'intégrité des données, une atteinte à la confidentialité des données et une élévation de privilèges.
Solution
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
NoneImpacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server - AUS 7.4 x86_64 |
References
| Title | Publication Time | Tags | |||
|---|---|---|---|---|---|
|
|||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Red Hat Enterprise Linux Server - AUS 7.4 x86_64",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"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-2021-22543",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-22543"
},
{
"name": "CVE-2021-22555",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-22555"
},
{
"name": "CVE-2021-37576",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-37576"
},
{
"name": "CVE-2021-32399",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-32399"
}
],
"links": [],
"reference": "CERTFR-2021-AVI-752",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2021-10-06T00:00:00.000000"
}
],
"risks": [
{
"description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es"
},
{
"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 de\nRed Hat. Elles permettent \u00e0 un attaquant de provoquer une atteinte \u00e0\nl\u0027int\u00e9grit\u00e9 des donn\u00e9es, une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es\net une \u00e9l\u00e9vation de privil\u00e8ges.\n",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans le noyau Linux de Red Hat",
"vendor_advisories": [
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Red Hat RHSA-2021:3725 du 05 octobre 2021",
"url": "https://access.redhat.com/errata/RHSA-2021:3725"
}
]
}
CVE-2021-37576 (GCVE-0-2021-37576)
Vulnerability from cvelistv5 – Published: 2021-07-26 21:35 – Updated: 2024-08-04 01:23
VLAI?
EPSS
Summary
arch/powerpc/kvm/book3s_rtas.c in the Linux kernel through 5.13.5 on the powerpc platform allows KVM guest OS users to cause host OS memory corruption via rtas_args.nargs, aka CID-f62f3c20647e.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2021-32399 (GCVE-0-2021-32399)
Vulnerability from cvelistv5 – Published: 2021-05-10 21:19 – Updated: 2024-08-03 23:17
VLAI?
EPSS
Summary
net/bluetooth/hci_request.c in the Linux kernel through 5.12.2 has a race condition for removal of the HCI controller.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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CVE-2021-22555 (GCVE-0-2021-22555)
Vulnerability from cvelistv5 – Published: 2021-07-07 11:20 – Updated: 2025-10-21 23:25
VLAI?
EPSS
Summary
A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c. This allows an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name space
Severity ?
8.3 (High)
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
| URL | Tags | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| n/a | Linux Kernel |
Affected:
2.6.19-rc1 , < unspecified
(custom)
|
Credits
Andy Nguyen
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CVE-2021-22543 (GCVE-0-2021-22543)
Vulnerability from cvelistv5 – Published: 2021-05-26 10:30 – Updated: 2024-09-16 23:26
VLAI?
EPSS
Summary
An issue was discovered in Linux: KVM through Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks and can lead to pages being freed while still accessible by the VMM and guest. This allows users with the ability to start and control a VM to read/write random pages of memory and can result in local privilege escalation.
Severity ?
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux Kernel | Linux Kernel |
Affected:
add6a0cd1c5ba51b201e1361b05a5df817083618 , < f8be156be163a052a067306417cd0ff679068c97
(git)
|
Credits
David Stevens
Kevin Hamacher
Jann Horn
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"url": "https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html"
},
{
"name": "[debian-lts-announce] 20211216 [SECURITY] [DLA 2843-1] linux security update",
"refsource": "MLIST",
"url": "https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html"
}
]
},
"source": {
"discovery": "EXTERNAL"
}
}
}
},
"cveMetadata": {
"assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778",
"assignerShortName": "Google",
"cveId": "CVE-2021-22543",
"datePublished": "2021-05-26T10:30:10.775212Z",
"dateReserved": "2021-01-05T00:00:00",
"dateUpdated": "2024-09-16T23:26:05.122Z",
"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 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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