CVE-2011-1521 Information

Description

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.

Reference

http://bugs.python.org/issue11662 http://hg.python.org/cpython/file/96a6c128822b/Misc/NEWS http://hg.python.org/cpython/file/b2934d98dac1/Misc/NEWS http://hg.python.org/cpython/rev/96a6c128822b/ http://hg.python.org/cpython/rev/b2934d98dac1/ 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 [oss-security] 20110324 CVE Request

Python (urllib urllib2): Improper management of ftp:// and file:// URL schemes http://openwall.com/lists/oss-security/2011/03/28/2 [oss-security] 20110328 Re: CVE Request

Python (urllib urllib2): Improper management of ftp:// and file:// URL schemes 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://secunia.com/advisories/50858 http://secunia.com/advisories/51024 http://secunia.com/advisories/51040 http://securitytracker.com/id?1025488 http://support.apple.com/kb/HT5002 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://bugzilla.redhat.com/show_bug.cgi?id=690560 https://bugzilla.redhat.com/show_bug.cgi?id=737366 https://www.djangoproject.com/weblog/2011/sep/09/ https://www.djangoproject.com/weblog/2011/sep/10/127/ 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.