SB2025022746 - Use-after-free in Linux kernel openvswitch
Published: February 27, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025022746
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-2025-21761)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the ovs_vport_cmd_fill_info() function in net/openvswitch/datapath.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/5828937742af74666192835d657095d95c53dbd0
- https://git.kernel.org/stable/c/7e01abc34e87abd091e619161a20f54ed4e3e2da
- https://git.kernel.org/stable/c/8ec57509c36c8b9a23e50b7858dda0c520a2d074
- https://git.kernel.org/stable/c/90b2f49a502fa71090d9f4fe29a2f51fe5dff76d
- https://git.kernel.org/stable/c/a849a10de5e04d798f7f286a2f1ca174719a617a
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.16