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==========================================================================
Ubuntu Security Notice USN-2161-1
April 03, 2014

libyaml-libyaml-perl vulnerabilities
==========================================================================

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

- Ubuntu 13.10
- Ubuntu 12.10
- Ubuntu 12.04 LTS

Summary:

libyaml-libyaml-perl could be made to crash or run programs if it opened a
specially crafted YAML file.

Software Description:
- libyaml-libyaml-perl: Perl interface to libyaml, a YAML implementation

Details:

Florian Weimer discovered that libyaml-libyaml-perl incorrectly handled
certain large YAML documents. An attacker could use this issue to cause
libyaml-libyaml-perl to crash, resulting in a denial of service, or
possibly execute arbitrary code. (CVE-2013-6393)

Ivan Fratric discovered that libyaml-libyaml-perl incorrectly handled
certain malformed YAML documents. An attacker could use this issue to cause
libyaml-libyaml-perl to crash, resulting in a denial of service, or
possibly execute arbitrary code. (CVE-2014-2525)

Update instructions:

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

Ubuntu 13.10:
  libyaml-libyaml-perl            0.38-3ubuntu0.13.10.1

Ubuntu 12.10:
  libyaml-libyaml-perl            0.38-3ubuntu0.12.10.1

Ubuntu 12.04 LTS:
  libyaml-libyaml-perl            0.38-2ubuntu0.1

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

References:
  http://www.ubuntu.com/usn/usn-2161-1
  CVE-2013-6393, CVE-2014-2525

Package Information:
  https://launchpad.net/ubuntu/+source/libyaml-libyaml-perl/0.38-3ubuntu0.13.10.1
  https://launchpad.net/ubuntu/+source/libyaml-libyaml-perl/0.38-3ubuntu0.12.10.1
  https://launchpad.net/ubuntu/+source/libyaml-libyaml-perl/0.38-2ubuntu0.1



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