#VU70632 Time-of-check Time-of-use (TOCTOU) Race Condition in MediaTek products - CVE-2022-32638

Vulnerability identifier: #VU70632

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-2022-32638

CWE-ID: CWE-367

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerable software:
MT6781
MT6853
MT6873
MT6877
MT6885
MT6893
MT8797
MT6833
MT6855
MT8167
MT8167S
MT8168
MT8173
MT8175
MT8185
MT8321
MT8362A
MT8365
MT8385
MT8666
MT8675
MT8765
MT8766
MT8768
MT8786
MT8788
MT8789
MT8791
MT8791T

Software vendor:
MediaTek

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

The vulnerability exists due to a race condition within isp component. A local application can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.

Install updates from vendor's website.

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