What is CVE-2013-1054?

CVE-2013-1054 is a medium-severity vulnerability in Canonical Ubuntu Linux, classified under Improper Resource Shutdown or Release. CVSS score: 4.3/10. Published 2021-04-07.

How severe is CVE-2013-1054?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in Canonical Ubuntu Linux

CVE-2013-1054

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.

Published 2021-04-07 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.013 (70.2th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Canonical Ubuntu Linux — versions 14.04, 15.04
Canonical Unity-Firefox-Extension — versions 3.0.0

Weakness classification (CWE)

CWE-404 — Improper Resource Shutdown or Release

References

launchpad.net/bugs/1175661 (Exploit, vendor-advisory, Vendor Advisory)
ubuntu.com/USN-2743-3 (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2013-1054?: CVE-2013-1054 is a medium-severity vulnerability in Canonical Ubuntu Linux, classified under Improper Resource Shutdown or Release. CVSS score: 4.3/10. Published 2021-04-07.
How severe is CVE-2013-1054?: Medium severity. CVSS v3 base score is 4.3 out of 10.