Vulnerability identifier: #VU77893

Vulnerability risk: Low

CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-20771

CWE-ID: CWE-662

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
MT6580
Mobile applications / Mobile firmware & hardware
MT6739
Mobile applications / Mobile firmware & hardware
MT6761
Mobile applications / Mobile firmware & hardware
MT6765
Mobile applications / Mobile firmware & hardware
MT6768
Mobile applications / Mobile firmware & hardware
MT6771
Mobile applications / Mobile firmware & hardware
MT8168
Mobile applications / Mobile firmware & hardware
MT8781
Mobile applications / Mobile firmware & hardware
MT6779
Hardware solutions / Firmware
MT6785
Hardware solutions / Firmware

Vendor: MediaTek

Description

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

The vulnerability exists due to a race condition within display. A local privileged application can execute arbitrary code.

Mitigation
Install security update from vendor's website.

Vulnerable software versions

MT6580: All versions

MT6739: All versions

MT6761: All versions

MT6765: All versions

MT6768: All versions

MT6771: All versions

MT6779: All versions

MT6785: All versions

MT8168: All versions

MT8781: All versions

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External links
http://corp.mediatek.com/product-security-bulletin/July-2023

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.