SB20240530167 - Use-after-free in Linux kernel client
Published: May 30, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240530167
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2023-52751)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the find_or_create_cached_dir(), spin_unlock() and open_cached_dir() functions in fs/smb/client/cached_dir.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/6db94d08359c43f2c8fe372811cdee04564a41b9
- https://git.kernel.org/stable/c/93877b9afc2994c89362007aac480a7b150f386f
- https://git.kernel.org/stable/c/5c86919455c1edec99ebd3338ad213b59271a71b
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7