#VU80292 Out-of-bounds read in MediaTek products - CVE-2023-20839

Vulnerability identifier: #VU80292

Vulnerability risk: Low

CVSSv4.0: 1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-20839

CWE-ID: CWE-125

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
MT2713
Mobile applications / Mobile firmware & hardware
MT6895
Mobile applications / Mobile firmware & hardware
MT6897
Mobile applications / Mobile firmware & hardware
MT6983
Mobile applications / Mobile firmware & hardware
MT8188
Mobile applications / Mobile firmware & hardware
MT8195
Mobile applications / Mobile firmware & hardware
MT8395
Mobile applications / Mobile firmware & hardware
MT8673
Mobile applications / Mobile firmware & hardware

Vendor: MediaTek

Description

The vulnerability allows a local privileged application to gain access to sensitive information.

The vulnerability exists due to a missing valid range checking within imgsys. A local privileged application can gain access to sensitive information.

Mitigation
Install security update from vendor's website.

Vulnerable software versions

MT2713: All versions

MT6895: All versions

MT6897: All versions

MT6983: All versions

MT8188: All versions

MT8195: All versions

MT8395: All versions

MT8673: All versions

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External links
https://corp.mediatek.com/product-security-bulletin/September-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.