SB2024062025 - Use-after-free in Linux kernel bridge
Published: June 20, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024062025
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-2024-36979)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the br_mst_vlan_set_state() and br_mst_set_state() functions in net/bridge/br_mst.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/8ca9a750fc711911ef616ceb627d07357b04545e
- https://git.kernel.org/stable/c/4488617e5e995a09abe4d81add5fb165674edb59
- https://git.kernel.org/stable/c/a2b01e65d9ba8af2bb086d3b7288ca53a07249ac
- https://git.kernel.org/stable/c/e43dd2b1ec746e105b7db5f9ad6ef14685a615a4
- https://git.kernel.org/stable/c/3a7c1661ae1383364cd6092d851f5e5da64d476b
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.93
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.33
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8.12