CVE-2022-29794 Use after free in EMUI

Critical 9.8 Published 13 May 2022 Updated 3 Aug 2024

A use-after-free flaw in the frame scheduling module allows attackers to compromise data integrity, availability, and confidentiality on Huawei devices.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2022-29794?

CVE-2022-29794 is a critical use after free vulnerability in Huawei Emui, published on 13 May 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The frame scheduling module has a Use After Free (UAF) vulnerability.Successful exploitation of this vulnerability will affect data integrity, availability, and confidentiality.

Weakness: CWE-416

Which versions are affected by CVE-2022-29794?

It affects 2 products.

Products include Huawei Emui, Huawei Harmonyos.

How do I fix CVE-2022-29794?

No fix has been published for CVE-2022-29794 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-2022-29794 being exploited?

There is no known exploitation of CVE-2022-29794 in the wild and no public exploit code.

All Huawei Emui vulnerabilities

Sources

Also known as GHSA-33mf-fw4p-7m8h.