Vulnerability-Lookup

CNVD-2022-69201

Vulnerability from cnvd - Published: 2022-10-17

Title

Linux kernel拒绝服务漏洞（CNVD-2022-69201）

Description

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在拒绝服务漏洞，该漏洞是由于net/core/sock.c中的sock_getsockopt（）函数中的“先用后读”缺陷造成的。本地经过身份验证的攻击者可利用此漏洞使系统崩溃或获取内部内核信息。

Severity

中

Patch Name

Linux kernel拒绝服务漏洞（CNVD-2022-69201）的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://lists.debian.org/debian-security-announce/2022/msg00063.html

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-4203

Impacted products

Name
Linux Linux kernel

Show details on source website

JSON

To clipboard

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  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://lists.debian.org/debian-security-announce/2022/msg00063.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-69201",
  "openTime": "2022-10-17",
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  "products": {
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  "serverity": "\u4e2d",
  "submitTime": "2022-03-14",
  "title": "Linux kernel\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2022-69201\uff09"
}

CVE-2021-4203 (GCVE-0-2021-4203)

Vulnerability from cvelistv5 – Published: 2022-03-25 00:00 – Updated: 2024-08-03 17:16

Summary

A use-after-free read flaw was found in sock_getsockopt() in net/core/sock.c due to SO_PEERCRED and SO_PEERGROUPS race with listen() (and connect()) in the Linux kernel. In this flaw, an attacker with a user privileges may crash the system or leak internal kernel information.

Severity

No CVSS data available.

CWE

CWE-362 - >CWE-416

Assigner

redhat redhat root

References

6 references

URL	Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2036934
https://bugs.chromium.org/p/project-zero/issues/d…
https://git.kernel.org/pub/scm/linux/kernel/git/n…
https://lore.kernel.org/netdev/20210929225750.254…
https://www.oracle.com/security-alerts/cpujul2022.html
https://security.netapp.com/advisory/ntap-2022111…

Impacted products

1 product

Vendor	Product	Version
n/a	kernel	Affected: kernel 5.15 rc4

Show details on NVD website

JSON

To clipboard

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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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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CNVD-2022-69201

CVE-2021-4203 (GCVE-0-2021-4203)

Tags

Sightings

Nomenclature

Related by attack behaviour