#VU92305 Use-after-free in Linux kernel - CVE-2024-36979

Vulnerability identifier: #VU92305

Vulnerability risk: Low

CVSSv4.0: 5.9 [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-2024-36979

CWE-ID: CWE-416

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: 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_vlan_set_state() and br_mst_set_state() functions in net/bridge/br_mst.c. A local user can escalate privileges on the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
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

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.