Use-after-free in Linux kernel media tuners driver

1) Use-after-free

EUVDB-ID: #VU96515

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-43900

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

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 load_firmware_cb() function in drivers/media/tuners/xc2028.c. A local user can escalate privileges on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

External links

http://git.kernel.org/stable/c/ef517bdfc01818419f7bd426969a0c86b14f3e0e
http://git.kernel.org/stable/c/850304152d367f104d21c77cfbcc05806504218b
http://git.kernel.org/stable/c/208deb6d8c3cb8c3acb1f41eb31cf68ea08726d5
http://git.kernel.org/stable/c/68594cec291ff9523b9feb3f43fd853dcddd1f60

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.