#VU77030 Improper Synchronization in MediaTek products - CVE-2023-20746

Vulnerability identifier: #VU77030

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-2023-20746

CWE-ID: CWE-662

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerable software:
MT6789
MT6855
MT8167
MT8168
MT8173
MT8185
MT8195
MT8321
MT8365
MT8395
MT8765
MT8766
MT8768
MT8781
MT8786
MT8788
MT8789
MT8791
MT8791T
MT8797

Software vendor:
MediaTek

The vulnerability allows a local privileged application to execute arbitrary code.

The vulnerability exists due to improper locking within vcu. A local privileged application can execute arbitrary code.

Install security update from vendor's website.

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