The e_hostname function in commands.c in BitchX 1.1a allows local users to overwrite arbitrary files via a symlink attack on temporary files when using the (1) HOSTNAME or (2) IRCHOST command.
bugs.debian.org/cgi-bin/bugreport.cgi?bug=449149
osvdb.org/42061
secunia.com/advisories/27463
secunia.com/advisories/31180
secunia.com/advisories/34870
security.gentoo.org/glsa/glsa-200807-12.xml
slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.285737
www.securityfocus.com/bid/26326
www.vupen.com/english/advisories/2007/3714
exchange.xforce.ibmcloud.com/vulnerabilities/38262