SB2025012036 - NULL pointer dereference in Linux kernel sctp
Published: January 20, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025012036
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2025-21636)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the proc_sctp_do_udp_port() function in net/sctp/sysctl.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/284a221f8fa503628432c7bb5108277c688c6ffa
- https://git.kernel.org/stable/c/44ee8635922b6eb940faddb961a8347c6857d722
- https://git.kernel.org/stable/c/6259d2484d0ceff42245d1f09cc8cb6ee72d847a
- https://git.kernel.org/stable/c/bcf8c60074e81ed2ac2d35130917175a3949c917
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.10