#VU70630 Out-of-bounds write in MediaTek products - CVE-2022-32637

Vulnerability identifier: #VU70630

Vulnerability risk: Low

CVSSv4.0: 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/E:U/U:Clear

CVE-ID: CVE-2022-32637

CWE-ID: CWE-787

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerable software:
MT6781
MT6785
MT6853
MT6853T
MT6873
MT6883
MT6885
MT6889
MT6833
MT8185
MT8789

Software vendor:
MediaTek

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.

Install updates from vendor's website.

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