Vulnerability · Published Aug 7, 2023 · Assigned by MediaTek

CVE-2023-20809

Medium 6.7

In plain English

A medium-severity out-of-bounds write in MT5583, MT5691, MT5695, MT9010, MT9011, MT9012, MT9016, MT9020, MT9021, MT9022, MT9030, MT9031, MT9032, MT9215, MT9216, MT9218, MT9220, MT9221, MT9222, MT9255, MT9256, MT9266, MT9269, MT9285, MT9286, from MediaTek, Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 0% of all known vulnerabilities).

Severity (CVSS 3.1)6.7Medium

Exploit odds (30 days)<0.1%top 99.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

In vdec, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: DTV03751198; Issue ID: DTV03751198.

Affected products (as reported)

Vendor	Product	Versions
MediaTek, Inc.	MT5583, MT5691, MT5695, MT9010, MT9011, MT9012, MT9016, MT9020, MT9021, MT9022, MT9030, MT9031, MT9032, MT9215, MT9216, MT9218, MT9220, MT9221, MT9222, MT9255, MT9256, MT9266, MT9269, MT9285, MT9286, MT9288, MT9600, MT9602, MT9610, MT9611, MT9612, MT9613, MT9615, MT9617, MT9629, MT9630, MT9631, MT9632, MT9636, MT9638, MT9639, MT9650, MT9652, MT9666, MT9667, MT9669, MT9670, MT9671, MT9675, MT9685, MT9686, MT9688	Android 10.0, 11.0

Weakness: CWE-787 · Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

References

https://corp.mediatek.com/product-security-bulletin/August-2023