CVE-2022-21785 Memory corruption in MT6877, MT6983, MT8167S, MT8168, MT8175, MT8183, MT8185, MT8362A, MT8365, MT8385, MT8667, MT8675, MT8695, MT8696, MT8766, MT8768, MT8786, MT8788, MT8789, MT8791, MT8797

Medium 6.7 Published 6 Jul 2022 Updated 3 Aug 2024

A missing bounds check in the MediaTek WLAN driver allows local attackers with system privileges to escalate privileges via an out-of-bounds write.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2022-21785?

CVE-2022-21785 is a medium-severity memory corruption vulnerability in Google Android, published on 6 Jul 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In WLAN driver, 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: ALPS06807363; Issue ID: ALPS06807363.

Weakness: CWE-787

Which versions are affected by CVE-2022-21785?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2022-21785?

No fix has been published for CVE-2022-21785 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2022-21785 being exploited?

There is no known exploitation of CVE-2022-21785 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as GHSA-x3mq-2fq2-xjvj.