Vulnerability identifier: #VU72919

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-2021-0407

CWE-ID: CWE-123

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
MT6739
Mobile applications / Mobile firmware & hardware
MT6761
Mobile applications / Mobile firmware & hardware
MT6762
Mobile applications / Mobile firmware & hardware
MT6763
Mobile applications / Mobile firmware & hardware
MT6765
Mobile applications / Mobile firmware & hardware
MT6768
Mobile applications / Mobile firmware & hardware
MT6769
Mobile applications / Mobile firmware & hardware
MT6771
Mobile applications / Mobile firmware & hardware
MT6833
Mobile applications / Mobile firmware & hardware
MT6853
Hardware solutions / Firmware
MT6853T
Hardware solutions / Firmware
MT6873
Hardware solutions / Firmware
MT6885
Hardware solutions / Firmware
MT6889
Hardware solutions / Firmware
MT6893
Hardware solutions / Firmware

Vendor: MediaTek

Description

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

The vulnerability exists due to an incorrect bounds check within clk driver. A local privileged application can execute arbitrary code.

Mitigation
Install security update from vendor's website.

Vulnerable software versions

MT6739: All versions

MT6761: All versions

MT6762: All versions

MT6763: All versions

MT6765: All versions

MT6768: All versions

MT6769: All versions

MT6771: All versions

MT6833: All versions

MT6853: All versions

MT6853T: All versions

MT6873: All versions

MT6885: All versions

MT6889: All versions

MT6893: All versions

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External links
http://corp.mediatek.com/product-security-bulletin/August-2021

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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.