CVE-2005-4624: Ptnet Ircd

Medium severity, CVSS 5.0. EPSS: 1.7% chance of exploitation in the next 30 days.

The m_join function in channel.c for PTnet ircd 1.5 and 1.6 allows remote attackers to cause a denial of service (memory exhaustion that triggers a daemon restart) via a large number of requests to join a "charmed channel" such as PTnet, #PTnoticias and #*.log, which causes ircd to open the channel even though it does not have any valid users.

Affected products

• Ptnet Ptnet Ircd: version 1.5 only; version 1.6 only

Published 2005-12-31. Last modified 2026-06-16.