Vulnerability identifier: #VU82808

Vulnerability risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-20702

CWE-ID: CWE-476

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
MT6835
Mobile applications / Mobile firmware & hardware
MT6879
Mobile applications / Mobile firmware & hardware
MT6886
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
MT8673
Mobile applications / Mobile firmware & hardware
MT8675
Mobile applications / Mobile firmware & hardware
MT8791
Mobile applications / Mobile firmware & hardware
MT8791T
Mobile applications / Mobile firmware & hardware
MT8798
Mobile applications / Mobile firmware & hardware
MT6873
Hardware solutions / Firmware
MT6875
Hardware solutions / Firmware
MT6883
Hardware solutions / Firmware
MT6885
Hardware solutions / Firmware
MT6889
Hardware solutions / Firmware
MT8797
Hardware solutions / Firmware

Vendor: MediaTek

Description

The vulnerability allows a local application to perform service disruption.

The vulnerability exists due to lack of error handling within 5G RLC. A local application can perform service disruption.

Mitigation
Install security update from vendor's website.

Vulnerable software versions

MT6835: All versions

MT6873: All versions

MT6875: All versions

MT6879: All versions

MT6883: All versions

MT6885: All versions

MT6886: All versions

MT6889: All versions

MT6895: All versions

MT6980: All versions

MT6983: All versions

MT6985: All versions

MT6990: All versions

MT8673: All versions

MT8675: All versions

MT8791: All versions

MT8791T: All versions

MT8797: All versions

MT8798: All versions

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