Vulnerability identifier: #VU77886

Vulnerability risk: Low

CVSSv3.1: 2 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-20758

CWE-ID: CWE-20

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
MT8786
Mobile applications / Mobile firmware & hardware
MT8789
Mobile applications / Mobile firmware & hardware
MT6781
Hardware solutions / Firmware
MT6785
Hardware solutions / Firmware
MT6853
Hardware solutions / Firmware
MT6853T
Hardware solutions / Firmware
MT6873
Hardware solutions / Firmware
MT6877
Hardware solutions / Firmware
MT6883
Hardware solutions / Firmware
MT6885
Hardware solutions / Firmware
MT6889
Hardware solutions / Firmware
MT6893
Hardware solutions / Firmware
MT8797
Hardware solutions / Firmware

Vendor: MediaTek

Description

The vulnerability allows a local privileged application to perform service disruption.

The vulnerability exists due to a missing bounds check within cmdq. A local privileged application can perform service disruption.

Mitigation
Install security update 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

MT6853T: All versions

MT6873: All versions

MT6877: All versions

MT6883: All versions

MT6885: All versions

MT6889: All versions

MT6893: All versions

MT8786: All versions

MT8789: All versions

MT8797: 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.