Grip is a GTK+ based front-end for CD rippers (such as cdparanoia and cdda2wav) and Ogg Vorbis encoders.
Dean Brettle discovered a buffer overflow bug in the way grip handles data returned by CDDB servers. It is possible that if a user connects to a malicious CDDB server, an attacker could execute arbitrary code on the victim's machine. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2005-0706 to this issue.
Users of grip should upgrade to this updated package, which contains a backported patch, and is not vulnerable to this issue.