#VU101139 Out-of-bounds write in MediaTek products - CVE-2024-20133

Vulnerability identifier: #VU101139

Vulnerability risk: Low

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-20133

CWE-ID: CWE-787

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
MT6879
Mobile applications / Mobile firmware & hardware
MT6886
Mobile applications / Mobile firmware & hardware
MT6895
Mobile applications / Mobile firmware & hardware
MT6895T
Mobile applications / Mobile firmware & hardware
MT6896
Mobile applications / Mobile firmware & hardware
MT6980
Mobile applications / Mobile firmware & hardware
MT6983
Mobile applications / Mobile firmware & hardware
MT8673
Mobile applications / Mobile firmware & hardware
MT8676
Mobile applications / Mobile firmware & hardware
MT8795T
Mobile applications / Mobile firmware & hardware
MT8798
Mobile applications / Mobile firmware & hardware

Vendor: MediaTek

Description

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

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

Mitigation
Install security update from vendor's website.

Vulnerable software versions

MT6879: All versions

MT6886: All versions

MT6895: All versions

MT6895T: All versions

MT6896: All versions

MT6980: All versions

MT6983: All versions

MT8673: All versions

MT8676: All versions

MT8795T: All versions

MT8798: All versions

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External links
https://corp.mediatek.com/product-security-bulletin/December-2024

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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.