National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2011-1521 Detail

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.

Source:  MITRE
Description Last Modified:  05/24/2011

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 6.4 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:P) (V2 legend)
Impact Subscore: 4.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): None
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://bugs.python.org/issue11662 Patch
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/ Patch
http://hg.python.org/cpython/rev/b2934d98dac1/ Patch
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
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 Patch
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/

Technical Details

Vulnerability Type (View All)

  • Resource Management Errors (CWE-399)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:python:python:2.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.0.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.1.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.1.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.1.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.2.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.2.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.2.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.3.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.3.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.3.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.3.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.3.5:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.3.7:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.4.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.4.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.4.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.4.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.4.6:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.5:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.5.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.5.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.5.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.5.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.6:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.6.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.6.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.6.5:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.6.6:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.6.7:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.7:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:2.7.1:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 2 ( hide )
 cpe:2.3:a:python:python:3.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:3.0.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:3.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:3.1.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:3.1.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:3.1.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:3.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:3.2:alpha:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2011-1521
NVD Published Date:
05/24/2011
NVD Last Modified:
02/20/2014