gdb before 6.3 searches the current working directory to load the .gdbinit configuration file, which allows local users to execute arbitrary commands as the user running gdb.
bugs.gentoo.org/show_bug.cgi?id=88398
secunia.com/advisories/17072
secunia.com/advisories/17356
secunia.com/advisories/18506
security.gentoo.org/glsa/glsa-200505-15.xml
support.avaya.com/elmodocs2/security/ASA-2006-015.htm
www.mandriva.com/security/advisories?name=MDKSA-2005:095
www.redhat.com/support/errata/RHSA-2005-709.html
www.redhat.com/support/errata/RHSA-2005-801.html
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11072