Back

MEDIUM

Potential DoS through abuse of rate limit in libunity-webapps for Firefox

Published Apr 7, 2021

Description

The unity-firefox-extension package could be tricked into dropping a C callback which was still in use, which Firefox would then free, causing Firefox to crash. This could be achieved by adding an action to the launcher and updating it with new callbacks until the libunity-webapps rate limit was hit. Fixed in 3.0.0+14.04.20140416-0ubuntu1.14.04.1 of unity-firefox-extension and in all versions of libunity-webapps by shipping an empty unity-firefox-extension package, thus disabling the extension entirely and invalidating the attack against the libunity-webapps package.

Affected products

Remediation

No remediation recorded yet.

Metrics

References (2)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner canonical
Published Apr 7, 2021
Updated Sep 16, 2024
Reserved Jan 11, 2013
NVD
Status Modified
Modified Jun 16, 2026
Red Hat
Severity n/a
Public date n/a