CVE-2007-4411
Publication date 18 August 2007
Last updated 17 July 2025
Ubuntu priority
Description
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 replies.