Use After Free in MediaTek products - CVE-2021-0667

Vulnerability identifier: #VU72980

CSH Severity: 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-2021-0667

CWE-ID: CWE-416

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerable software:
MT6873
MT6875
MT6877
MT6883
MT6885
MT6889
MT6891
MT6893
MT9636
MT9638
MT9639
MT9650
MT9652
MT9669
MT9686
MT9970
MT9980
MT9981

Software vendor:
MediaTek

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

The vulnerability exists due to a use after free within apusys. A local privileged application can execute arbitrary code.

Install security update from vendor's website.

• https://corp.mediatek.com/product-security-bulletin/November-2021