CVE-2013-1055: canonical libunity-webapps Improper Resource Shutdown or Release
Vulnerability summary
CVE-2013-1055 is a medium (CVSS 4.3) Improper Resource Shutdown or Release vulnerability in canonical libunity-webapps. EPSS estimates a 1.27% chance of exploitation in the next 30 days, higher than 69.4% of scored vulnerabilities. 1 public exploit is recorded.
Advisory lineage
Upstream 0 · Downstream 0 · Related 1Timeline
- 07-04-2021PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
4 scores · 3 sources · 2 versions- NVDNIST4.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
- OSV · UbuntuEcosystem advisory · calculated4.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
EPSS trend
Probability
1.27%
Chance of exploitation in the next 30 days
Percentile
69%
Versus all other CVEs
30-day change
0.00 pp
From 1.27% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (launchpad.net)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Canonical3 products
- libunity-webapps≥ 2.5.0, < 2.5.0~+14.04.20140409-0ubuntu1
- ubuntu_linuxEOL14.04 | 15.04
- unity-firefox-extension≥ 3.0.0, < 3.0.0+14.04.20140416-0ubuntu1.14.04.1 | < 3.0.0\+14.04.20140416-0ubuntu1.14.04.1
Ubuntu1 product
- unity-firefox-extension< 3.0.0+14.04.20140416-0ubuntu1.14.04.1
2 vendors · 4 products