#VU79085 Time-of-check Time-of-use (TOCTOU) Race Condition in MediaTek products - CVE-2023-20788

Vulnerability identifier: #VU79085

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-2023-20788

CWE-ID: CWE-367

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerable software:
MT6739
MT6761
MT6765
MT6768
MT6771
MT6833
MT8167
MT8167S
MT8168
MT8321
MT8362A
MT8365
MT6779
MT6781
MT6785
MT6853
MT6873
MT6877
MT6883

Software vendor:
MediaTek

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

The vulnerability exists due to a race condition within thermal. A local privileged application can execute arbitrary code.

Install security update from vendor's website.

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