xferfaxstats in HylaFax 4.2.1 and earlier allows local users to overwrite arbitrary files via a symlink attack on the xferfax$$ temporary file.
bugs.debian.org/cgi-bin/bugreport.cgi?bug=329384
secunia.com/advisories/16906
secunia.com/advisories/17022
secunia.com/advisories/17107
secunia.com/advisories/17187
www.debian.org/security/2005/dsa-865
www.gentoo.org/security/en/glsa/glsa-200509-21.xml
www.mandriva.com/security/advisories?name=MDKSA-2005:177
www.securityfocus.com/bid/14907