SB2025072918 - Use-after-free in Linux kernel tls
Published: July 29, 2025
Security Bulletin ID
SB2025072918
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-2025-38471)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the tls_strp_read_sock() function in net/tls/tls_strp.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/1f3a429c21e0e43e8b8c55d30701e91411a4df02
- https://git.kernel.org/stable/c/4ab26bce3969f8fd925fe6f6f551e4d1a508c68b
- https://git.kernel.org/stable/c/730fed2ff5e259495712518e18d9f521f61972bb
- https://git.kernel.org/stable/c/c76f6f437c46b2390888e0e1dc7aafafa9f4e0c6
- https://git.kernel.org/stable/c/cdb767915fc9a15d88d19d52a1455f1dc3e5ddc8