#VU94931 Use-after-free in Linux kernel - CVE-2024-42137

Vulnerability identifier: #VU94931

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-2024-42137

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 qca_serdev_shutdown() function in drivers/bluetooth/hci_qca.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/215a26c2404fa34625c725d446967fa328a703eb
https://git.kernel.org/stable/c/4ca6013cd18e58ac1044908c40d4006a92093a11
https://git.kernel.org/stable/c/e6e200b264271f62a3fadb51ada9423015ece37b
https://git.kernel.org/stable/c/e2d8aa4c763593704ac21e7591aed4f13e32f3b5
https://git.kernel.org/stable/c/977b9dc65e14fb80de4763d949c7dec2ecb15b9b
https://git.kernel.org/stable/c/88e72239ead9814b886db54fc4ee39ef3c2b8f26

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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.