Memory leak in Linux kernel platform x86 driver

1) Memory leak

EUVDB-ID: #VU91656

Risk: Low

CVSSv3.1: 4.8 [AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-52520

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to memory leak within the tlmi_release_attr() and tlmi_sysfs_init() functions in drivers/platform/x86/think-lmi.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

External links

http://git.kernel.org/stable/c/124cf0ea4b82e1444ec8c7420af4e7db5558c293
http://git.kernel.org/stable/c/af21c9119a37cecb7ff27ce0c2f3cf721e9d0ec4
http://git.kernel.org/stable/c/c6e3023579de8d33256771ac0745239029e81106
http://git.kernel.org/stable/c/528ab3e605cabf2f9c9bd5944d3bfe15f6e94f81

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.