#VU91561 Memory leak in Linux kernel - CVE-2024-36967

Vulnerability identifier: #VU91561

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-36967

CWE-ID: CWE-401

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 perform a denial of service (DoS) attack.

The vulnerability exists due to memory leak within the tpm2_key_encode() function in security/keys/trusted-keys/trusted_tpm2.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
http://git.kernel.org/stable/c/1e6914fa8e7798bcf3ce4a5b96ea4ac1d5571cdf
http://git.kernel.org/stable/c/5d91238b590bd883c86ba7707c5c9096469c08b7
http://git.kernel.org/stable/c/e62835264d0352be6086975f18fdfed2b5520b13
http://git.kernel.org/stable/c/189c768932d435045b1fae12bf63e53866f06a28
http://git.kernel.org/stable/c/cf26a92f560eed5d6ddc3d441cc645950cbabc56
http://git.kernel.org/stable/c/ffcaa2172cc1a85ddb8b783de96d38ca8855e248

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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.