CVE-2011-1521

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CVE-2011-1521

Summary:

Details: The urllib and urllib2 modules in Python 2.x before 2.7.2 and 3.x before 3.2.1 process Location headers that specify redirection to file: URLs, which makes it easier for remote attackers to obtain sensitive information or cause a denial of service (resource consumption) via a crafted URL, as demonstrated by the file:///etc/passwd and file:///dev/zero URLs.

References: http://secunia.com/advisories/50858, http://secunia.com/advisories/51024, http://secunia.com/advisories/51040, http://www.mandriva.com/security/advisories?name=MDVSA-2011:096, http://www.ubuntu.com/usn/USN-1592-1, http://www.ubuntu.com/usn/USN-1596-1, http://www.ubuntu.com/usn/USN-1613-1, http://www.ubuntu.com/usn/USN-1613-2, https://www.djangoproject.com/weblog/2011/sep/09/, https://www.djangoproject.com/weblog/2011/sep/10/127/, http://bugs.python.org/issue11662, http://hg.python.org/cpython/rev/96a6c128822b/, http://hg.python.org/cpython/rev/b2934d98dac1/, https://bugzilla.redhat.com/show_bug.cgi?id=690560, https://bugzilla.redhat.com/show_bug.cgi?id=737366, http://hg.python.org/cpython/file/96a6c128822b/Misc/NEWS, http://hg.python.org/cpython/file/b2934d98dac1/Misc/NEWS, http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html, http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html, http://openwall.com/lists/oss-security/2011/03/24/5, http://openwall.com/lists/oss-security/2011/03/28/2, http://openwall.com/lists/oss-security/2011/09/11/1, http://openwall.com/lists/oss-security/2011/09/13/2, http://openwall.com/lists/oss-security/2011/09/15/5, http://securitytracker.com/id?1025488, http://support.apple.com/kb/HT5002