Ircu Security Vulnerabilities

CVE-2008-1501

The send_user_mode function in s_user.c in (1) Undernet ircu 2.10.12.12 and earlier, (2) snircd 1.3.4 and earlier, and unspecified other ircu derivatives allows remote attackers to cause a denial of service (daemon crash) via a malformed MODE...

CVE-2007-4408

ircu 2.10.12.05 and earlier ignores timestamps in bounces, which allows remote attackers to take over a channel during a netjoin by causing a bounce while a server with an older version of the channel is...

CVE-2007-4404

ircu 2.10.12.01 allows remote attackers to (1) cause a denial of service (flood wallops) by joining two channels with certain long names that differ in the final character, which triggers a protocol violation and (2) cause a denial of service (daemon crash) via a "J 0:#channel" message on a...

CVE-2007-4411

ircu 2.10.12.05 and earlier allows remote attackers to discover the hidden IP address of arbitrary +x users via a series of /silence commands with (1) CIDR mask arguments or (2) certain other arguments that represent groups of IP addresses, then monitoring CTCP ping...

CVE-2007-4407

ircu 2.10.12.03 and 2.10.12.04 does not associate a timestamp with ops privilege on an unused channel (zannel), which allows remote attackers to (1) set or remove certain channel modes via a "netriding" attack or (2) take over a channel by joining an unlinked server with the A/Upass and then...

CVE-2007-4410

ircu 2.10.12.05 and earlier does not properly synchronize a kick action in certain cross scenarios, which allows remote authenticated operators to prevent later kick or de-op actions from non-local...

CVE-2007-4405

ircu 2.10.12.02 through 2.10.12.04 allows remote attackers to cause a denial of service (memory and bandwidth consumption) by creating a large number of unused channels...

CVE-2007-4406

ircu 2.10.12.01 through 2.10.12.04 does not remove ops privilege after a join from a server with an older timestamp (TS), which allows remote attackers to gain control of a channel during a...

CVE-2007-4409

Race condition in ircu 2.10.12.01 through 2.10.12.05 allows remote attackers to set a new Apass during a netburst by arranging for ops privilege to be granted before the mode...