SB20240530169 - Use-after-free in Linux kernel cifs
Published: May 30, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240530169
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-2023-52741)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the uncached_fill_pages() and readpages_fill_pages() functions in fs/cifs/file.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/2b693fe3f760c87fd9768e759f6297f743a1b3b0
- https://git.kernel.org/stable/c/d1fba1e096ffc7ec11df863a97c50203c47315b9
- https://git.kernel.org/stable/c/3684a2f6affa1ca52a5d4a12f04d0652efdee65e
- https://git.kernel.org/stable/c/aa5465aeca3c66fecdf7efcf554aed79b4c4b211
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.168
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.94
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2