Ubuntu Security Notice 409-1 - Federico L. Bossi Bonin discovered a Denial of Service vulnerability in ksirc. By sending a special response packet, a malicious IRC server could crash ksirc.
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Mandriva Linux Security Advisory - KsIRC 1.3.12 allows remote attackers to cause a denial of service (crash) via a long PRIVMSG string when connecting to an Internet Relay Chat (IRC) server, which causes an assertion failure and results in a NULL pointer dereference.
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KDE Security Advisory - On 2006-12-27, a proof of concept for arbitrary code execution in ksirc was published by Federico L. Bossi Bonin. The published exploit triggers an assertion in ksirc and results in a a NULL pointer dereference (crash) for non-debug builds.
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