CVE-2023-6932

7.8 HIGH
Published: December 19, 2023 Modified: November 25, 2025

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://kernel.dance/e2b706c691905fe78468c361aaabc719d0a496f1
Source: cve-coordination@google.com
Patch
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
Source: cve-coordination@google.com
Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html
Source: cve-coordination@google.com
Mailing List Third Party Advisory
http://packetstormsecurity.com/files/177029/Kernel-Live-Patch-Security-Notice-LSN-0100-1.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://kernel.dance/e2b706c691905fe78468c361aaabc719d0a496f1
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory

10 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.8 / 10.0
EPSS (Exploit Probability)
0.0%
6th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

debian linux