Security Information / 2014 / Security Information -- DSA-2870-1 libyaml-libyaml-perl

Debian Security Advisory

DSA-2870-1 libyaml-libyaml-perl -- heap-based buffer overflow

Date Reported:

08 Mar 2014

Affected Packages:

libyaml-libyaml-perl

Vulnerable:

Yes

Security database references:

In Mitre's CVE dictionary: CVE-2013-6393.

More information:

Florian Weimer of the Red Hat Product Security Team discovered a heap-based buffer overflow flaw in LibYAML, a fast YAML 1.1 parser and emitter library. A remote attacker could provide a YAML document with a specially-crafted tag that, when parsed by an application using libyaml, would cause the application to crash or, potentially, execute arbitrary code with the privileges of the user running the application.

This update corrects this flaw in the copy that is embedded in the libyaml-libyaml-perl package.

For the oldstable distribution (squeeze), this problem has been fixed in version 0.33-1+squeeze2.

For the stable distribution (wheezy), this problem has been fixed in version 0.38-3+deb7u1.

For the testing distribution (jessie), this problem has been fixed in version 0.41-4.

For the unstable distribution (sid), this problem has been fixed in version 0.41-4.

We recommend that you upgrade your libyaml-libyaml-perl packages.