CVE-2021-45482 Use after free in n/a

Medium 6.5 Published 25 Dec 2021 Updated 4 Aug 2024

A use-after-free flaw in WebKitGTK allows attackers to potentially execute arbitrary code via crafted web content.

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: Available

What is CVE-2021-45482?

CVE-2021-45482 is a medium-severity use after free vulnerability in Webkitgtk Webkitgtk, published on 25 Dec 2021. 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

In WebKitGTK before 2.32.4, there is a use-after-free in WebCore::ContainerNode::firstChild, a different vulnerability than CVE-2021-30889.

Weakness: CWE-416

Which versions are affected by CVE-2021-45482?

It affects 1 product.

Products include Webkitgtk Webkitgtk.

How do I fix CVE-2021-45482?

Upgrade to a fixed version.

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-2021-45482 being exploited?

There is no known exploitation of CVE-2021-45482 in the wild and no public exploit code.

All Webkitgtk Webkitgtk vulnerabilities

Sources

Also known as DEBIAN-CVE-2021-45482, GHSA-73cm-q45j-cwwr, UBUNTU-CVE-2021-45482.