GStreamer is a streaming media framework based on graphs of filters which operate on media data. GStreamer Base Plug-ins is a collection of well-maintained base plug-ins.
An integer overflow flaw which caused a heap-based buffer overflow was discovered in the Vorbis comment tags reader. An attacker could create a carefully-crafted Vorbis file that would cause an application using GStreamer to crash or, potentially, execute arbitrary code if opened by a victim. (CVE-2009-0586)
All users of gstreamer-plugins-base are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing this update, all applications using GStreamer (such as Totem or Rhythmbox) must be restarted for the changes to take effect.