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IRSSI Long Malformed Topic Denial Of Service Vulnerability
irssi is prone to a denial of service condition when a user joins a channel with a long, malformed topic. The vulnerability occurs when a user attempts to join a channel that has an overly long topic description. When a certain string is appended to the topic, irssi will crash resulting in a denial of service. An attacker can cause irssi clients to crash by changing the topic of a channel while users are still online or by enticing users to join channels with malformed topic descriptions. |
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