SB2025022741 - Use-after-free in Linux kernel core
Published: February 27, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025022741
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-2025-21763)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the __neigh_notify() function in net/core/neighbour.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/1cbb2aa90cd3fba15ad7efb5cdda28f3d1082379
- https://git.kernel.org/stable/c/559307d25235e24b5424778c7332451b6c741159
- https://git.kernel.org/stable/c/784eb2376270e086f7db136d154b8404edacf97b
- https://git.kernel.org/stable/c/becbd5850c03ed33b232083dd66c6e38c0c0e569
- https://git.kernel.org/stable/c/cdd5c2a12ddad8a77ce1838ff9f29aa587de82df
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.16