CVE-2013-1054: Possible remote DOS in WebApps

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-04-07 · updated 2026-06-16
Weakness: CWE-404

Description

The unity-firefox-extension package could be tricked into destroying the Unity webapps context, causing Firefox to crash. This could be achieved by spinning the event loop inside the webapps initialization callback. Fixed in 3.0.0+14.04.20140416-0ubuntu1.14.04.1 by shipping an empty package, thus disabling the extension entirely.

Affected products

Canonical Ubuntu Linux: 14.04, 15.04
Canonical unity-firefox-extension: before 3.0.0\+14.04.20140416-0ubuntu1.14.04.1 — fixed in 3.0.0\+14.04.20140416-0ubuntu1.14.04.1

How to fix

Upgrade to a fixed version: Canonical unity-firefox-extension 3.0.0\+14.04.20140416-0ubuntu1.14.04.1. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2013-1054 or the next vulnerability affects your stack