National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2013-2099 Detail

Current Description

Algorithmic complexity vulnerability in the ssl.match_hostname function in Python 3.2.x, 3.3.x, and earlier, and unspecified versions of python-backports-ssl_match_hostname as used for older Python versions, allows remote attackers to cause a denial of service (CPU consumption) via multiple wildcard characters in the common name in a certificate.

Source:  MITRE
Description Last Modified:  10/09/2013
View Analysis Description

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 4.3 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.6


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

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://bugs.python.org/issue17980 Patch
http://rhn.redhat.com/errata/RHSA-2014-1690.html
http://www.openwall.com/lists/oss-security/2013/05/16/6
http://www.ubuntu.com/usn/USN-1983-1
http://www.ubuntu.com/usn/USN-1984-1
http://www.ubuntu.com/usn/USN-1985-1
https://access.redhat.com/errata/RHSA-2016:1166
https://bugzilla.redhat.com/show_bug.cgi?id=963260

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:3.2.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:3.2.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:3.2.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:3.2.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:3.2.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:3.2.5:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:3.3.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:3.3.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:python:python:3.3.2:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 2 ( hide )
 cpe:2.3:o:canonical:ubuntu_linux:12.04:-:lts:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:canonical:ubuntu_linux:12.10:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:canonical:ubuntu_linux:13.04:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2013-2099
NVD Published Date:
10/09/2013
NVD Last Modified:
06/08/2016