Race condition in MediaTek products - CVE-2022-21771
Published: July 8, 2022
Vulnerability identifier: #VU65039
CSH Severity: Low
CVSS v4: 8.5 [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]
CVE-ID: CVE-2022-21771
CWE-ID: CWE-362
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local application to escalate privileges on the system.
The vulnerability exists due to a race condition in GED driver. A local application can exploit the race to trigger a use-after-free error and escalate privileges on the system.
Affected software
MT6833
MT8365
MT8168
MT6983
MT6895
MT6879
MT6580
MT6789
MT6771
MT6768
MT6765
MT6761
MT6753
MT6739
MT6737
MT6735
MT6893
MT6889
MT6885
MT6883
MT6877
MT6873
MT6853T
MT6853
MT6785
MT6781
MT6779
MT8365
MT8168
MT6983
MT6895
MT6879
MT6580
MT6789
MT6771
MT6768
MT6765
MT6761
MT6753
MT6739
MT6737
MT6735
MT6893
MT6889
MT6885
MT6883
MT6877
MT6873
MT6853T
MT6853
MT6785
MT6781
MT6779
How to mitigate CVE-2022-21771
Install updates from vendor's website.