#VU94225 Use-after-free in Linux kernel - CVE-2024-40903

Vulnerability identifier: #VU94225

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-2024-40903

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 tcpm_register_sink_caps() function in drivers/usb/typec/tcpm/tcpm.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/4053696594d7235f3638d49a00cf0f289e4b36a3
https://git.kernel.org/stable/c/04c05d50fa79a41582f7bde8a1fd4377ae4a39e5
https://git.kernel.org/stable/c/6b67b652849faf108a09647c7fde9b179ef24e2b
https://git.kernel.org/stable/c/e7e921918d905544500ca7a95889f898121ba886

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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.