Improper Handling of Exceptional Conditions in MediaTek products - CVE-2022-20066

Vulnerability identifier: #VU73039

CSH Severity: Low

CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

CVE-ID: CVE-2022-20066

CWE-ID: CWE-755

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerable software:
MT8168
MT8365
MT8696
MT6580
MT6739
MT6761
MT6765
MT6769
MT6771
MT6833
MT8666
MT8667
MT8766
MT8768
MT8788
MT6785
MT6873
MT6875
MT6877
MT6891

Software vendor:
MediaTek

The vulnerability allows a local privileged application to gain access to sensitive information.

The vulnerability exists due to incorrect error handling within atf (hwfde). A local privileged application can gain access to sensitive information.

Install security update from vendor's website.

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