Buffer overflow in Linux kernel bridge analogix driver

1) Buffer overflow

EUVDB-ID: #VU104807

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-2022-49222

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to memory corruption within the segments_edid_read() function in drivers/gpu/drm/bridge/analogix/anx7625.c. A local user can escalate privileges on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/64c06df2428bb7bb3d8cf5691416001af42d94dd
https://git.kernel.org/stable/c/d5c6f647aec9ed524aedd04a3aec5ebc21d39007
https://git.kernel.org/stable/c/db1c47d299298a7c52ccb201905d6be979fd7507
https://git.kernel.org/stable/c/f0d5d938d51af4eb08d9d8684fd9903425a0a87d

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.