Vulnerability identifier: #VU70633

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-2022-32639

CWE-ID: CWE-125

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
MT6739
Mobile applications / Mobile firmware & hardware
MT6768
Mobile applications / Mobile firmware & hardware
MT6771
Mobile applications / Mobile firmware & hardware
MT6833
Mobile applications / Mobile firmware & hardware
MT8167
Mobile applications / Mobile firmware & hardware
MT8167S
Mobile applications / Mobile firmware & hardware
MT8362A
Mobile applications / Mobile firmware & hardware
MT8385
Mobile applications / Mobile firmware & hardware
MT8532
Mobile applications / Mobile firmware & hardware
MT8765
Mobile applications / Mobile firmware & hardware
MT8786
Mobile applications / Mobile firmware & hardware
MT8791
Mobile applications / Mobile firmware & hardware
MT6781
Hardware solutions / Firmware
MT6785
Hardware solutions / Firmware
MT6853
Hardware solutions / Firmware
MT6873
Hardware solutions / Firmware
MT6877
Hardware solutions / Firmware
MT8518S
/

Vendor: MediaTek

Description

The vulnerability allows a local application to escalate privileges on the system.

The vulnerability exists due to a boundary condition within watchdog component. A local application can trigger out-of-bounds read error and escalate privileges on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

MT6739: All versions

MT6768: All versions

MT6771: All versions

MT6781: All versions

MT6785: All versions

MT6833: All versions

MT6853: All versions

MT6873: All versions

MT6877: All versions

MT8167: All versions

MT8167S: All versions

MT8362A: All versions

MT8385: All versions

MT8518S: All versions

MT8532: All versions

MT8765: All versions

MT8786: All versions

MT8791: All versions

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