Ubuntu: 2160-1: LibYAML vulnerability
Posted by Benjamin D. Thomas   
Ubuntu LibYAML could be made to crash or run programs if it opened a speciallycrafted YAML document.
Ubuntu Security Notice USN-2160-1
April 03, 2014

libyaml vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 13.10
- Ubuntu 12.10
- Ubuntu 12.04 LTS


LibYAML could be made to crash or run programs if it opened a specially
crafted YAML document.

Software Description:
- libyaml: Fast YAML 1.1 parser and emitter library


Ivan Fratric discovered that LibYAML incorrectly handled certain malformed
YAML documents. An attacker could use this issue to cause LibYAML to crash,
resulting in a denial of service, or possibly execute arbitrary code.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 13.10:
  libyaml-0-2                     0.1.4-2ubuntu0.13.10.3

Ubuntu 12.10:
  libyaml-0-2                     0.1.4-2ubuntu0.12.10.3

Ubuntu 12.04 LTS:
  libyaml-0-2                     0.1.4-2ubuntu0.12.04.3

After a standard system update you need to restart applications using
LibYAML to make all the necessary changes.


Package Information: