Improper input validation in MediaTek products - CVE-2023-20696

Vulnerability identifier: #VU75746

CSH Severity: Low

CVSS v4: 8.4 [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]

CVE-ID: CVE-2023-20696

CWE-ID: CWE-20

Exploitation vector: Local access

Exploit availability: No public exploit available

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

The vulnerability exists due to a missing bounds check within preloader. A local privileged application can execute arbitrary code.

MT8673
MT8791T
MT8791
MT8789
MT8788
MT8786
MT8781
MT8768
MT8766
MT8765
MT8675
MT6880
MT8667
MT8666
MT8395
MT8385
MT8365
MT8321
MT8195
MT8185
MT8175
MT8167
MT6890
Samsung Mobile Firmware
MT8797
Google Android

Install security update from vendor's website.

Samsung Mobile Firmware - update to SMR-JUN-2023
Google Android - addressed in versions 11 2023-05-05, 12L 2023-05-05, 12 2023-05-05, 13 2023-05-05

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

• Multiple vulnerabilities in MediaTek chipsets
• Multiple vulnerabilities in Google Android
• Multiple vulnerabilities in Samsung Mobile Firmware