Directory traversal vulnerability in the (1) extract and (2) extractall functions in the tarfile module in Python allows user-assisted remote attackers to overwrite arbitrary files via a .. (dot dot) sequence in filenames in a TAR archive, a related issue to CVE-2001-1267.
https://security.gentoo.org/glsa/202309-06
https://bugzilla.redhat.com/show_bug.cgi?id=263261
http://www.vupen.com/english/advisories/2007/3022
http://secunia.com/advisories/26623
http://mail.python.org/pipermail/python-dev/2007-August/074292.html
http://mail.python.org/pipermail/python-dev/2007-August/074290.html