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Format string vulnerability in LICQ 1.2.6, 1.0.3 and possibly other versions allows remote attackers to perform unknown actions via format string specifiers.
licq before 1.0.3 allows remote attackers to execute arbitrary commands via shell metacharacters in a URL.
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.
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".
licq before 1.3.6 allows remote attackers to cause a denial of service (file-descriptor exhaustion and application crash) via a large number of connections.