#VU94221 Use-after-free in Linux kernel - CVE-2024-40920
Published: July 13, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU94221
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2024-40920
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
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_set_state() function in net/bridge/br_mst.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/caaa2129784a04dcade0ea92c12e6ff90bbd23d8
- https://git.kernel.org/stable/c/7caefa2771722e65496d85b62e1dc4442b7d1345
- https://git.kernel.org/stable/c/406bfc04b01ee47e4c626f77ecc7d9f85135b166
- https://git.kernel.org/stable/c/546ceb1dfdac866648ec959cbc71d9525bd73462
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.95
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.35