Buffer overflow in MediaTek products - CVE-2022-21778

Vulnerability identifier: #VU69000

CSH Severity: Low

CVSS v4.0: 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-2022-21778

CWE-ID: CWE-119

Exploitation vector: Local access

Exploit availability: No public exploit available

Vendor: MediaTek

Affected software:
MT6771
MT8168
MT8175
MT8183
MT8365
MT8385
MT8788
MT6779
MT6785
MT6853
MT6853T
MT6873
MT6877
MT6885
MT6891
MT6893

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

The vulnerability exists due to a boundary error in vpu. A local application can trigger memory corruption and execute arbitrary code with elevated privileges.

Install updates from vendor's website.

• https://corp.mediatek.com/product-security-bulletin/November-2022