CVE-2019-5236 Use after free in Emily-L29C

Medium 6.3 Published 8 Aug 2019 Updated 4 Aug 2024

A double free vulnerability in Huawei smartphones allows attackers to cause device abnormality by tricking users into clicking a malicious URL.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2019-5236?

CVE-2019-5236 is a medium-severity use after free vulnerability in Huawei Emily-L29C, published on 8 Aug 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Huawei smart phones Emily-L29C with versions of 8.1.0.132a(C432), 8.1.0.135(C782), 8.1.0.154(C10), 8.1.0.154(C461), 8.1.0.154(C635), 8.1.0.156(C185), 8.1.0.156(C605), 8.1.0.159(C636) have a double free vulnerability. An attacker can trick a user to click a URL to exploit this vulnerability. Successful exploitation may cause the affected phone abnormal.

Weakness: CWE-415

Which versions are affected by CVE-2019-5236?

It affects 1 product.

Products include Huawei Emily-L29c Firmware.

How do I fix CVE-2019-5236?

No fix has been published for CVE-2019-5236 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-2019-5236 being exploited?

There is no known exploitation of CVE-2019-5236 in the wild and no public exploit code.

Sources

Also known as GHSA-34h4-h6v3-w52h.