CVE-2020-13543 Use after free in Webkit
A use-after-free in WebKitGTK's WebSocket handling allows remote code execution when a user visits a malicious webpage.
- 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-2020-13543?
CVE-2020-13543 is a high-severity use after free vulnerability in Webkitgtk Webkitgtk, published on 3 Dec 2020. 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
A code execution vulnerability exists in the WebSocket functionality of Webkit WebKitGTK 2.30.0. A specially crafted web page can trigger a use-after-free vulnerability which can lead to remote code execution. An attacker can get a user to visit a webpage to trigger this vulnerability.
Weakness: CWE-416
Which versions are affected by CVE-2020-13543?
It affects 1 product.
Products include Webkitgtk Webkitgtk.
How do I fix CVE-2020-13543?
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-2020-13543 being exploited?
There is no known exploitation of CVE-2020-13543 in the wild and no public exploit code.
Other vulnerabilities in Webkitgtk Webkitgtk
Sources
Also known as DEBIAN-CVE-2020-13543, GHSA-mqwf-vg2c-5ch3, UBUNTU-CVE-2020-13543.