SB20250916131 - Use-after-free in Linux kernel sctp
Published: September 16, 2025 Updated: September 22, 2025
Security Bulletin ID
SB20250916131
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-2022-50243)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the sctp_auth_set_key() and sctp_auth_set_active_key() functions in net/sctp/auth.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/022152aaebe116a25c39818a07e175a8cd3c1e11
- https://git.kernel.org/stable/c/0f90099d18e3abdc01babf686f41f63fe04939c1
- https://git.kernel.org/stable/c/19d636b663e0e92951bba5fced929ca7fd25c552
- https://git.kernel.org/stable/c/382ff44716603a54f5fd238ddec6a2468e217612
- https://git.kernel.org/stable/c/3b0fcf5e29c0940e1169ce9c44f73edd98bdf12d
- https://git.kernel.org/stable/c/b8fa99a3a11bdd77fef6b4a97f1021eb30b5ba40
- https://git.kernel.org/stable/c/f65955340e0044f5c41ac799a01698ac7dee8a4e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.150