CVE-2018-21084 Use after free in n/a

High 8.1 Published 8 Apr 2020 Updated 5 Aug 2024

A race condition in Samsung mobile OS allows attackers to trigger a read-after-free, potentially leading to code execution or privilege escalation.

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-2018-21084?

CVE-2018-21084 is a high-severity use after free vulnerability in Google Android, published on 8 Apr 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered on Samsung mobile devices with L(5.1), M(6.0), and N(7.x) software. There is a race condition with a resultant read-after-free issue in get_kek. The Samsung ID is SVE-2017-11174 (February 2018).

Weakness: CWE-416, CWE-362

Which versions are affected by CVE-2018-21084?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2018-21084?

No fix has been published for CVE-2018-21084 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-2018-21084 being exploited?

There is no known exploitation of CVE-2018-21084 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as GHSA-84xc-jf62-8hpx.