Out-of-bounds write in MediaTek products - CVE-2022-32637

Vulnerability identifier: #VU70630

CSH Severity: Low

CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-32637

CWE-ID: CWE-787

Exploitation vector: Local access

Exploit availability: No public exploit available

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

The vulnerability exists due to a boundary error within hevc decoder component. A local application can trigger out-of-bounds write and escalate privileges on the system.

MT6781
MT6785
MT6853
MT6853T
MT6873
MT6883
MT6885
MT6889
MT6833
MT8185
MT8789
Google Android

Install updates from vendor's website.

Google Android - addressed in versions 10 2023-01-05, 11 2023-01-05, 12L 2023-01-05, 12 2023-01-05, 13 2023-01-05

• https://corp.mediatek.com/product-security-bulletin/January-2023

• Multiple vulnerabilities in MediaTek chipsets
• Multiple vulnerabilities in Google Android