Ubuntu Security Notice USN-2461-2
12th January, 2015
libyaml-libyaml-perl vulnerability
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 14.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
Summary
Applications using libyaml-libyaml-perl could be made to crash if
they received specially crafted input.
Software description
- libyaml-libyaml-perl
– Perl interface to libyaml, a YAML implementation
Details
Stanisław Pitucha and Jonathan Gray discovered that
libyaml-libyaml-perl did not properly handle wrapped strings. An
attacker could create specially crafted YAML data to trigger an assert,
causing a denial of service.
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 14.10:
-
libyaml-libyaml-perl
0.41-5ubuntu0.14.10.1
- Ubuntu 14.04 LTS:
-
libyaml-libyaml-perl
0.41-5ubuntu0.14.04.1
- Ubuntu 12.04 LTS:
-
libyaml-libyaml-perl
0.38-2ubuntu0.2
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to restart applications using
libyaml-libyaml-perl to make all the necessary changes.