CVE-2023-6932

HIGH

Linux Kernel 2.6.12-6.7 - Use-After-Free in IGMP Component

Title source: llm

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.

References (9)

Core 9

Core References

Mailing List, Patch patch

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=e2b706c691905fe78468c361aaabc719d0a496f1

Patch

https://kernel.dance/e2b706c691905fe78468c361aaabc719d0a496f1

Mailing List, Third Party Advisory

https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html

Mailing List, Third Party Advisory

https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html

Third Party Advisory

http://packetstormsecurity.com/files/177029/Kernel-Live-Patch-Security-Notice-LSN-0100-1.html

Vendor Advisory

https://cert-portal.siemens.com/productcert/html/ssa-265688.html

Vendor Advisory

https://cert-portal.siemens.com/productcert/html/ssa-398330.html

Vendor Advisory

https://cert-portal.siemens.com/productcert/html/ssa-613116.html

Vendor Advisory

https://cert-portal.siemens.com/productcert/html/ssa-794697.html

Scores

CVSS v3 7.8

EPSS 0.0002

EPSS Percentile 6.2%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-416

Status published

Products (3)

debian/debian_linux 10.0

Linux/Kernel 2.6.12 - 6.7

linux/linux_kernel < 4.14.332

Published Dec 19, 2023

Tracked Since Feb 18, 2026