4.3 - RHSA-2013:1582

Problem Description:

Updated python packages that fix one security issue, several bugs, and add one enhancement are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64 Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - x86_64 Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64 Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

3. Description:

Python is an interpreted, interactive, object-oriented programming language.

A flaw was found in the way the Python SSL module handled X.509 certificate fields that contain a NULL byte. An attacker could potentially exploit this flaw to conduct man-in-the-middle attacks to spoof SSL servers. Note that to exploit this issue, an attacker would need to obtain a carefully crafted certificate signed by an authority that the client trusts. (CVE-2013-4238)

These updated python packages include numerous bug fixes and one enhancement. Space precludes documenting all of these changes in this advisory. Users are directed to the Red Hat Enterprise Linux 6.5 Technical Notes, linked to in the References, for information on the most significant of these changes.

All users of python are advised to upgrade to these updated packages, which fix these issues and add this enhancement.

4. Solution:

Before applying this update, make sure all previously-released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/site/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

521898 - Fix instances of #!/usr/bin/env python in python-tools 841937 - RHEL 6 installation fails when Turkish language is selected 845802 - python prepends UTF-8 BOM syslog messages - causes messages to be treated a EMERG level 893034 - yum traceback with python-2.6.6-29.el6_2.2 and higher + missing /dev/urandom 919163 - python logging problem - when rotating to new log file, logger checks file's stat when the file does not exist 928390 - Python SSLSocket.getpeercert() incorrectly returns an empty Subject Alternative Name from peer certificate. 948025 - SocketServer doesn't handle syscall interruption 958868 - Downstream added "timeout=None" keyword argument causes regression in eventlet 960168 - failed incoming SSL connection stays open 978129 - Please consider to backport patch: issue9374 urlparse should parse query and fragment for arbitrary schemes 996381 - CVE-2013-4238 python: hostname check bypassing vulnerability in SSL module