CVE-2021-36994 Race condition in EMUI

Low 3.7 Published Updated

A race condition in Huawei mobile OS allows repeated trustlist insertions, causing system exceptions and denial of service.

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-2021-36994?

CVE-2021-36994 is a low-severity vulnerability in Huawei Emui, published on 28 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

There is a issue that trustlist strings being repeatedly inserted into the linked list in Huawei Smartphone due to race conditions. Successful exploitation of this vulnerability can cause exceptions when managing the system trustlist.

Weakness: CWE-362

Which versions are affected by CVE-2021-36994?

It affects 2 products.

Products include Huawei Emui, Huawei Magic Ui.

How do I fix CVE-2021-36994?

No fix has been published for CVE-2021-36994 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-36994 being exploited?

There is no known exploitation of CVE-2021-36994 in the wild and no public exploit code.

All Huawei Emui vulnerabilities

Sources

Also known as GHSA-897c-pj95-h9cf.

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