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CVE-2023-6932

Good to know:

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Date: December 19, 2023

A use-after-free vulnerability in the Linux kernel's ipv4: igmp component can be exploited to achieve local privilege escalation. A race condition can be exploited to cause a timer be mistakenly registered on a RCU read locked object which is freed by another thread. We recommend upgrading past commit e2b706c691905fe78468c361aaabc719d0a496f1.

Language: C

Severity Score

Related Resources (7)

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=e2b706c691905fe78468c361aaabc719d0a496f1
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
https://nvd.nist.gov/vuln/detail/CVE-2023-6932
https://kernel.dance/e2b706c691905fe78468c361aaabc719d0a496f1
https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html
http://packetstormsecurity.com/files/177029/Kernel-Live-Patch-Security-Notice-LSN-0100-1.html
https://www.mend.io/vulnerability-database/CVE-2023-6932

Severity Score

Weakness Type (CWE)

Use After Free

CWE-416

Top Fix

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Upgrade Version

Upgrade to version v4.14.332,v4.19.301,v5.4.263,v5.10.203,v5.15.142,v6.1.66,v6.6.5

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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