Vulnerability identifier: #VU66046

Vulnerability risk: Low

CVSSv3.1: 6.2 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-21788

CWE-ID: CWE-390

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
MT6879
Mobile applications / Mobile firmware & hardware
MT6895
Mobile applications / Mobile firmware & hardware
MT6983
Mobile applications / Mobile firmware & hardware

Vendor: MediaTek

Description

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

The vulnerability exists due to incorrect error handling in scp. A local application can escalate privileges on the system by using an undefined behavior.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

MT6879: All versions

MT6895: All versions

MT6983: All versions

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External links
http://corp.mediatek.com/product-security-bulletin/August-2022

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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.