CVE-2022-20090 Use after free in MT6580, MT6731, MT6739, MT6761, MT6762, MT6765, MT6768, MT6769, MT6771, MT6779, MT6781, MT6785, MT6833, MT6853, MT6853T, MT6873, MT6875, MT6877, MT6879, MT6883, MT6885, MT6889, MT6891, MT6893, MT6895, MT6983, MT8163, MT8167, MT8168, MT8173, MT8185, MT8321, MT8362A, MT8365, MT8696, MT8735, MT8735B, MT8765, MT8766, MT8768, MT8786, MT8788, MT8789, MT8791, MT8797

Medium 6.4 Published Updated

A race condition in the MediaTek AEE driver allows local attackers with system privileges to achieve privilege escalation via a use-after-free vulnerability.

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-2022-20090?

CVE-2022-20090 is a medium-severity use after free vulnerability in Google Android, published on 3 May 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In aee driver, there is a possible use after free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS06209197; Issue ID: ALPS06209197.

Weakness: CWE-416, CWE-362

Which versions are affected by CVE-2022-20090?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2022-20090?

No fix has been published for CVE-2022-20090 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2022-20090 being exploited?

There is no known exploitation of CVE-2022-20090 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as GHSA-qwc5-hx9q-c93x.

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