Vulnerability identifier: #VU77031

Vulnerability risk: Low

CVSSv3.1: 2 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-20747

CWE-ID: CWE-843

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
MT5696
Mobile applications / Mobile firmware & hardware
MT5836
Mobile applications / Mobile firmware & hardware
MT5838
Mobile applications / Mobile firmware & hardware
MT6768
Mobile applications / Mobile firmware & hardware
MT6769
Mobile applications / Mobile firmware & hardware
MT6789
Mobile applications / Mobile firmware & hardware
MT6833
Mobile applications / Mobile firmware & hardware
MT6835
Mobile applications / Mobile firmware & hardware
MT6855
Mobile applications / Mobile firmware & hardware
MT8185
Mobile applications / Mobile firmware & hardware
MT8195
Mobile applications / Mobile firmware & hardware
MT8365
Mobile applications / Mobile firmware & hardware
MT8781
Mobile applications / Mobile firmware & hardware
MT8786
Mobile applications / Mobile firmware & hardware
MT8789
Mobile applications / Mobile firmware & hardware
MT8791
Mobile applications / Mobile firmware & hardware
MT9000
Mobile applications / Mobile firmware & hardware
MT9015
Mobile applications / Mobile firmware & hardware
MT9023
Mobile applications / Mobile firmware & hardware
MT9025
Mobile applications / Mobile firmware & hardware
MT9618
Mobile applications / Mobile firmware & hardware
MT9649
Mobile applications / Mobile firmware & hardware
MT9653
Mobile applications / Mobile firmware & hardware
MT9679
Mobile applications / Mobile firmware & hardware
MT9687
Mobile applications / Mobile firmware & hardware
MT9689
Mobile applications / Mobile firmware & hardware
MT9902
Mobile applications / Mobile firmware & hardware
MT9932
Mobile applications / Mobile firmware & hardware
MT9952
Mobile applications / Mobile firmware & hardware
MT9972
Mobile applications / Mobile firmware & hardware
MT9982
Mobile applications / Mobile firmware & hardware
MT6779
Hardware solutions / Firmware
MT6781
Hardware solutions / Firmware
MT6785
Hardware solutions / Firmware
MT6853
Hardware solutions / Firmware
MT6853T
Hardware solutions / Firmware
MT6873
Hardware solutions / Firmware
MT6875
Hardware solutions / Firmware
MT6877
Hardware solutions / Firmware
MT6883
Hardware solutions / Firmware
MT6885
Hardware solutions / Firmware
MT6889
Hardware solutions / Firmware
MT6891
Hardware solutions / Firmware
MT6893
Hardware solutions / Firmware
MT8797
Hardware solutions / Firmware

Vendor: MediaTek

Description

The vulnerability allows a local privileged application to perform service disruption.

The vulnerability exists due to type confusion within vcu. A local privileged application can perform service disruption.

Mitigation
Install security update from vendor's website.

Vulnerable software versions

MT5696: All versions

MT5836: All versions

MT5838: All versions

MT6768: All versions

MT6769: All versions

MT6779: All versions

MT6781: All versions

MT6785: All versions

MT6789: All versions

MT6833: All versions

MT6835: All versions

MT6853: All versions

MT6853T: All versions

MT6855: All versions

MT6873: All versions

MT6875: All versions

MT6877: All versions

MT6883: All versions

MT6885: All versions

MT6889: All versions

MT6891: All versions

MT6893: All versions

MT8185: All versions

MT8195: All versions

MT8365: All versions

MT8781: All versions

MT8786: All versions

MT8789: All versions

MT8791: All versions

MT8797: All versions

MT9000: All versions

MT9015: All versions

MT9023: All versions

MT9025: All versions

MT9618: All versions

MT9649: All versions

MT9653: All versions

MT9679: All versions

MT9687: All versions

MT9689: All versions

MT9902: All versions

MT9932: All versions

MT9952: All versions

MT9972: All versions

MT9982: All versions

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