Vulnerability identifier: #VU79102

Vulnerability risk: Low

CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-20809

CWE-ID: CWE-787

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
MT5583
Mobile applications / Mobile firmware & hardware
MT5691
Mobile applications / Mobile firmware & hardware
MT5695
Mobile applications / Mobile firmware & hardware
MT9010
Mobile applications / Mobile firmware & hardware
MT9011
Mobile applications / Mobile firmware & hardware
MT9012
Mobile applications / Mobile firmware & hardware
MT9016
Mobile applications / Mobile firmware & hardware
MT9020
Mobile applications / Mobile firmware & hardware
MT9021
Mobile applications / Mobile firmware & hardware
MT9022
Mobile applications / Mobile firmware & hardware
MT9030
Mobile applications / Mobile firmware & hardware
MT9031
Mobile applications / Mobile firmware & hardware
MT9032
Mobile applications / Mobile firmware & hardware
MT9215
Mobile applications / Mobile firmware & hardware
MT9216
Mobile applications / Mobile firmware & hardware
MT9218
Mobile applications / Mobile firmware & hardware
MT9220
Mobile applications / Mobile firmware & hardware
MT9221
Mobile applications / Mobile firmware & hardware
MT9222
Mobile applications / Mobile firmware & hardware
MT9255
Mobile applications / Mobile firmware & hardware
MT9256
Mobile applications / Mobile firmware & hardware
MT9266
Mobile applications / Mobile firmware & hardware
MT9269
Mobile applications / Mobile firmware & hardware
MT9285
Mobile applications / Mobile firmware & hardware
MT9286
Mobile applications / Mobile firmware & hardware
MT9288
Mobile applications / Mobile firmware & hardware
MT9600
Mobile applications / Mobile firmware & hardware
MT9602
Mobile applications / Mobile firmware & hardware
MT9610
Mobile applications / Mobile firmware & hardware
MT9611
Mobile applications / Mobile firmware & hardware
MT9612
Mobile applications / Mobile firmware & hardware
MT9613
Mobile applications / Mobile firmware & hardware
MT9615
Mobile applications / Mobile firmware & hardware
MT9617
Mobile applications / Mobile firmware & hardware
MT9629
Mobile applications / Mobile firmware & hardware
MT9630
Mobile applications / Mobile firmware & hardware
MT9631
Mobile applications / Mobile firmware & hardware
MT9632
Mobile applications / Mobile firmware & hardware
MT9636
Mobile applications / Mobile firmware & hardware
MT9638
Mobile applications / Mobile firmware & hardware
MT9639
Mobile applications / Mobile firmware & hardware
MT9650
Mobile applications / Mobile firmware & hardware
MT9652
Mobile applications / Mobile firmware & hardware
MT9666
Mobile applications / Mobile firmware & hardware
MT9667
Mobile applications / Mobile firmware & hardware
MT9669
Mobile applications / Mobile firmware & hardware
MT9670
Mobile applications / Mobile firmware & hardware
MT9671
Mobile applications / Mobile firmware & hardware
MT9675
Mobile applications / Mobile firmware & hardware
MT9685
Mobile applications / Mobile firmware & hardware
MT9686
Mobile applications / Mobile firmware & hardware
MT9688
Mobile applications / Mobile firmware & hardware

Vendor: MediaTek

Description

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

The vulnerability exists due to a missing bounds check within vdec. A local privileged application can execute arbitrary code.

Mitigation
Install security update from vendor's website.

Vulnerable software versions

MT5583: All versions

MT5691: All versions

MT5695: All versions

MT9010: All versions

MT9011: All versions

MT9012: All versions

MT9016: All versions

MT9020: All versions

MT9021: All versions

MT9022: All versions

MT9030: All versions

MT9031: All versions

MT9032: All versions

MT9215: All versions

MT9216: All versions

MT9218: All versions

MT9220: All versions

MT9221: All versions

MT9222: All versions

MT9255: All versions

MT9256: All versions

MT9266: All versions

MT9269: All versions

MT9285: All versions

MT9286: All versions

MT9288: All versions

MT9600: All versions

MT9602: All versions

MT9610: All versions

MT9611: All versions

MT9612: All versions

MT9613: All versions

MT9615: All versions

MT9617: All versions

MT9629: All versions

MT9630: All versions

MT9631: All versions

MT9632: All versions

MT9636: All versions

MT9638: All versions

MT9639: All versions

MT9650: All versions

MT9652: All versions

MT9666: All versions

MT9667: All versions

MT9669: All versions

MT9670: All versions

MT9671: All versions

MT9675: All versions

MT9685: All versions

MT9686: All versions

MT9688: All versions

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