TI-2013-00917 Aliases CVE-2013-1055 GHSA-42p7-ggcc-r5fp

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

LOW 23CWE-404Published 2021-04-07 · Updated 2024-09-16

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · Low
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-404.

Summary

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.

Why it matters now

EPSS 0.01275 70th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed unity-firefox-extension (Canonical): 3.0.0+14.04.20140416-0ubuntu1.14.04.1libunity-webapps (Canonical): 2.5.0~+14.04.20140409-0ubuntu1

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Canonical	unity-firefox-extension	3.0.0 to before 3.0.0+14.04.20140416-0ubuntu1.14.04.1	3.0.0+14.04.20140416-0ubuntu1.14.04.1	Patch available	CNA
Canonical	libunity-webapps	2.5.0 to before 2.5.0~+14.04.20140409-0ubuntu1	2.5.0~+14.04.20140409-0ubuntu1	Patch available	CNA

unity-firefox-extension VendorCanonical Affected 3.0.0 to before 3.0.0+14.04.20140416-0ubuntu1.14.04.1 Fixed in 3.0.0+14.04.20140416-0ubuntu1.14.04.1 Patch available CNA
libunity-webapps VendorCanonical Affected 2.5.0 to before 2.5.0~+14.04.20140409-0ubuntu1 Fixed in 2.5.0~+14.04.20140409-0ubuntu1 Patch available CNA

CPE configurations NVD · 3

CPE	Versions	Role	Vendor
cpe:2.3:a:canonical:unity-firefox-extension::::::::	before 3.0.0\+14.04.20140416-0ubuntu1.14.04.1	Vulnerable	Canonical
cpe:2.3:o:canonical:ubuntu_linux:14.04::::esm:::	14.04	Vulnerable	Canonical
cpe:2.3:o:canonical:ubuntu_linux:15.04:::::::*	15.04	Vulnerable	Canonical

cpe:2.3:a:canonical:unity-firefox-extension:*:*:*:*:*:*:*:* Versions before 3.0.0\+14.04.20140416-0ubuntu1.14.04.1 Vulnerable ·Canonical
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* Versions 14.04 Vulnerable ·Canonical
cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:* Versions 15.04 Vulnerable ·Canonical

Remediation

Fix · CNA unity-firefox-extension (Canonical) Fixed in 3.0.0+14.04.20140416-0ubuntu1.14.04.1
Fix · CNA libunity-webapps (Canonical) Fixed in 2.5.0~+14.04.20140409-0ubuntu1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Advisory · 2021-04-07
Canonical unity-firefox-extension — ubuntu.com/USN-2743-3
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2013-00916 Possible remote DOS in WebAppsPriority LOW 32
Show all 2 records → Advisory →

Timeline

2026-10-02 Threatist record created from CVE-2013-1055
2026-10-03 Alias added: GHSA-42p7-ggcc-r5fp

References

Exploit 1

https://launchpad.net/bugs/1175691

Advisory 1

https://ubuntu.com/USN-2743-3

TI-2020-09349 An issue was discovered in SaltStack Salt before 2019.2.4 and 3000 before 3000.2. KEVCVSS 3.1CRITICAL 9.8
TI-2020-05854 smtp_mailaddr in smtp_session.c in OpenSMTPD 6.6, as used in OpenBSD 6.6 and other… KEVCVSS 3.1CRITICAL 9.8
TI-2020-01431 Netlogon Elevation of Privilege Vulnerability KEVCVSS 3.1CRITICAL 10.0
TI-2019-12627 Exim 4.92 through 4.92.2 allows remote code execution, a different vulnerability than… KEVCVSS 3.1CRITICAL 9.8
TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
TI-2019-07471 OS command injection in exim KEVCVSS 3.1CRITICAL 9.8

See all 4120 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences