Vulnerability   
Search   
    Search 324607 CVE descriptions
and 145615 test descriptions,
access 10,000+ cross references.
Tests   CVE   All  

Test ID:1.3.6.1.4.1.25623.1.0.112998
Category:General
Title:Python 2.6.x < 2.6.9, 2.7.x < 2.7.6, 3.2.x < 3.2.6, 3.3.x < 3.3.3 SSL NULL Byte Vulnerability (bpo-18709) - Linux
Summary:Python's SSL module fails to handle NULL bytes inside subjectAltNames general names.
Description:Summary:
Python's SSL module fails to handle NULL bytes inside subjectAltNames general names.

Vulnerability Insight:
The ssl.match_hostname function in the SSL module in Python
does not properly handle a '0' character in a domain name in the Subject Alternative Name field
of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers
via a crafted certificate issued by a legitimate Certification Authority.

Affected Software/OS:
Python 2.6 before 2.6.9, 2.7 before 2.7.6, 3.2 before 3.2.6 and 3.3 before 3.3.3.

Solution:
The vendor has released updates. Please see the references for
more information.

CVSS Score:
4.3

CVSS Vector:
AV:N/AC:M/Au:N/C:N/I:P/A:N

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2013-4238
20141205 NEW: VMSA-2014-0012 - VMware vSphere product updates address security vulnerabilities
http://seclists.org/fulldisclosure/2014/Dec/23
http://www.securityfocus.com/archive/1/534161/100/0/threaded
DSA-2880
http://www.debian.org/security/2014/dsa-2880
RHSA-2013:1582
http://rhn.redhat.com/errata/RHSA-2013-1582.html
USN-1982-1
http://www.ubuntu.com/usn/USN-1982-1
http://bugs.python.org/issue18709
http://www.vmware.com/security/advisories/VMSA-2014-0012.html
https://bugzilla.redhat.com/show_bug.cgi?id=996381
openSUSE-SU-2013:1437
http://lists.opensuse.org/opensuse-updates/2013-09/msg00026.html
openSUSE-SU-2013:1438
http://lists.opensuse.org/opensuse-updates/2013-09/msg00027.html
openSUSE-SU-2013:1439
http://lists.opensuse.org/opensuse-updates/2013-09/msg00028.html
openSUSE-SU-2013:1440
http://lists.opensuse.org/opensuse-updates/2013-09/msg00029.html
openSUSE-SU-2013:1462
http://lists.opensuse.org/opensuse-updates/2013-09/msg00042.html
openSUSE-SU-2013:1463
http://lists.opensuse.org/opensuse-updates/2013-09/msg00043.html
openSUSE-SU-2020:0086
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
CopyrightCopyright (C) 2021 Greenbone AG

This is only one of 145615 vulnerability tests in our test suite. Find out more about running a complete security audit.

To run a free test of this vulnerability against your system, register below.




© 1998-2025 E-Soft Inc. All rights reserved.