#VU66038 Race condition in MediaTek products - CVE-2022-21789

Vulnerability identifier: #VU66038

Vulnerability risk: Low

CVSSv4.0: 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:P/U:Clear

CVE-ID: CVE-2022-21789

CWE-ID: CWE-362

Exploitation vector: Local access

Exploit availability: Public exploit is available

Vulnerable software:
MT6779
MT6781
MT6785
MT6853
MT6853T
MT6873
MT6875
MT6877
MT6883
MT6885
MT6889
MT6891
MT6893
MT8797
MT6879
MT6895
MT6983
MT6985
MT8791
MT8798

Software vendor:
MediaTek

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

The vulnerability exists due to a race condition within the audio ipi. A local application can exploit the race and escalate privileges on the system.

Install updates from vendor's website.

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