CVE-2023-3609

CVSS V2 None CVSS V3 None

Description

A use-after-free vulnerability in the Linux kernel's net/sched: cls_u32 component can be exploited to achieve local privilege escalation. If tcf_change_indev() fails, u32_set_parms() will immediately return an error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability. We recommend upgrading past commit 04c55383fa5689357bcdd2c8036725a55ed632bc.

Overview

CVE ID
CVE-2023-3609

Assigner
Google

Vulnerability Status
PUBLISHED

Published Version
2023-07-21T20:47:12.172Z

Last Modified Date
2023-07-21T20:47:12.172Z

Weakness Enumerations

CWE	URL
CWE-416	http://cwe.mitre.org/data/definitions/416.html

References

Reference URL	Reference Tags
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=04c55383fa5689357bcdd2c8036725a55ed632bc	patch
https://kernel.dance/04c55383fa5689357bcdd2c8036725a55ed632bc
https://security.netapp.com/advisory/ntap-20230818-0005/
https://www.debian.org/security/2023/dsa-5480
http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098-1.html
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2023-3609
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-3609

History

Created	Old Value	New Value	Data Type	Notes
2024-06-24 20:31:28				Added to TrackCVE