CVE-2020-9139 Denial of service in EMUI;Magic UI

Critical 9.1 Published Updated

Improper input validation in Huawei smartphones allows attackers to cause memory access errors 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-2020-9139?

CVE-2020-9139 is a critical denial of service vulnerability in Huawei Emui, published on 13 Jan 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

There is a improper input validation vulnerability in some Huawei Smartphone.Successful exploit of this vulnerability can cause memory access errors and denial of service.

Weakness: CWE-20

Which versions are affected by CVE-2020-9139?

It affects 2 products.

Products include Huawei Emui, Huawei Magic Ui.

How do I fix CVE-2020-9139?

No fix has been published for CVE-2020-9139 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2020-9139 being exploited?

There is no known exploitation of CVE-2020-9139 in the wild and no public exploit code.

All Huawei Emui vulnerabilities

Sources

Also known as GHSA-j4vm-fm5v-hp47.

Is CVE-2020-9139 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free