Buffer overflow in licq 1.0.4 and earlier allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long string of format string characters such as "%d".
Buffer overflow in logging functions of licq before 1.0.3 allows remote attackers to cause a denial of service, and possibly execute arbitrary commands.
licq before 1.0.3 allows remote attackers to execute arbitrary commands via shell metacharacters in a URL.