Vulnerability identifier: #VU79090

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-2023-20796

CWE-ID: CWE-20

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
MT2735
Mobile applications / Mobile firmware & hardware
MT2737
Mobile applications / Mobile firmware & hardware
MT6789
Mobile applications / Mobile firmware & hardware
MT6833
Mobile applications / Mobile firmware & hardware
MT6835
Mobile applications / Mobile firmware & hardware
MT6855
Mobile applications / Mobile firmware & hardware
MT6879
Mobile applications / Mobile firmware & hardware
MT6880
Mobile applications / Mobile firmware & hardware
MT6886
Mobile applications / Mobile firmware & hardware
MT6890
Mobile applications / Mobile firmware & hardware
MT6895
Mobile applications / Mobile firmware & hardware
MT6980
Mobile applications / Mobile firmware & hardware
MT6983
Mobile applications / Mobile firmware & hardware
MT6985
Mobile applications / Mobile firmware & hardware
MT6990
Mobile applications / Mobile firmware & hardware
MT8168
Mobile applications / Mobile firmware & hardware
MT8321
Mobile applications / Mobile firmware & hardware
MT8768
Mobile applications / Mobile firmware & hardware
MT8781
Mobile applications / Mobile firmware & hardware
MT8786
Mobile applications / Mobile firmware & hardware
MT6853
Hardware solutions / Firmware
MT6873
Hardware solutions / Firmware
MT6877
Hardware solutions / Firmware
MT6893
Hardware solutions / Firmware

Vendor: MediaTek

Description

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

The vulnerability exists due to an incorrect bounds check within power. A local privileged application can perform service disruption.

Mitigation
Install security update from vendor's website.

Vulnerable software versions

MT2735: All versions

MT2737: All versions

MT6789: All versions

MT6833: All versions

MT6835: All versions

MT6853: All versions

MT6855: All versions

MT6873: All versions

MT6877: All versions

MT6879: All versions

MT6880: All versions

MT6886: All versions

MT6890: All versions

MT6893: All versions

MT6895: All versions

MT6980: All versions

MT6983: All versions

MT6985: All versions

MT6990: All versions

MT8168: All versions

MT8321: All versions

MT8768: All versions

MT8781: All versions

MT8786: All versions

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