CVE-2013-1055

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

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

Canonical · unity-firefox-extension · libunity-webapps

CVSS v3.1 NVD

4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

CVSS v2.0 NVD

4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P

EPSS

1.27% chance of exploitation in the next 30 days, 70th percentile

Published

2021-04-07

Updated

2024-09-16

Proof-of-concept exploits (1)

• https://launchpad.net/bugs/1175691

Security advisories

• https://ubuntu.com/USN-2743-3

References

• CVE Record
• NVD entry