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Test ID:1.3.6.1.4.1.25623.1.0.870757
Category:Red Hat Local Security Checks
Title:RedHat Update for python RHSA-2012:0745-01
Summary:The remote host is missing an update for the 'python'; package(s) announced via the referenced advisory.
Description:Summary:
The remote host is missing an update for the 'python'
package(s) announced via the referenced advisory.

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

A denial of service flaw was found in the implementation of associative
arrays (dictionaries) in Python. An attacker able to supply a large number
of inputs to a Python application (such as HTTP POST request parameters
sent to a web application) that are used as keys when inserting data into
an array could trigger multiple hash function collisions, making array
operations take an excessive amount of CPU time. To mitigate this issue,
randomization has been added to the hash function to reduce the chance of
an attacker successfully causing intentional collisions. (CVE-2012-1150)

Note: The hash randomization is not enabled by default as it may break
applications that incorrectly depend on dictionary ordering. To enable the
protection, the new 'PYTHONHASHSEED' environment variable or the Python
interpreter's '-R' command line option can be used. Refer to the python(1)
manual page for details.

The RHSA-2012:0731 expat erratum must be installed with this update, which
adds hash randomization to the Expat library used by the Python pyexpat
module.

A flaw was found in the way the Python SimpleHTTPServer module generated
directory listings. An attacker able to upload a file with a
specially-crafted name to a server could possibly perform a cross-site
scripting (XSS) attack against victims visiting a listing page generated by
SimpleHTTPServer, for a directory containing the crafted file (if the
victims were using certain web browsers). (CVE-2011-4940)

A race condition was found in the way the Python distutils module set file
permissions during the creation of the .pypirc file. If a local user had
access to the home directory of another user who is running distutils, they
could use this flaw to gain access to that user's .pypirc file, which can
contain usernames and passwords for code repositories. (CVE-2011-4944)

Red Hat would like to thank oCERT for reporting CVE-2012-1150. oCERT
acknowledges Julian Waelde and Alexander Klink as the original reporters of
CVE-2012-1150.

All Python users should upgrade to these updated packages, which contain
backported patches to correct these issues.

Affected Software/OS:
python on Red Hat Enterprise Linux (v. 5 server)

Solution:
Please Install the Updated Packages.

CVSS Score:
5.0

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

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2011-4940
BugTraq ID: 54083
http://www.securityfocus.com/bid/54083
http://jvn.jp/en/jp/JVN51176027/index.html
http://jvndb.jvn.jp/jvndb/JVNDB-2012-000063
http://secunia.com/advisories/50858
http://secunia.com/advisories/51024
http://secunia.com/advisories/51040
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
Common Vulnerability Exposure (CVE) ID: CVE-2011-4944
http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=650555
https://bugzilla.redhat.com/show_bug.cgi?id=758905
http://www.openwall.com/lists/oss-security/2012/03/27/2
http://www.openwall.com/lists/oss-security/2012/03/27/10
http://www.openwall.com/lists/oss-security/2012/03/27/5
http://secunia.com/advisories/51087
http://secunia.com/advisories/51089
SuSE Security Announcement: openSUSE-SU-2020:0086 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
http://www.ubuntu.com/usn/USN-1615-1
http://www.ubuntu.com/usn/USN-1616-1
Common Vulnerability Exposure (CVE) ID: CVE-2012-1150
http://www.openwall.com/lists/oss-security/2012/03/10/3
http://mail.python.org/pipermail/python-dev/2011-December/115116.html
http://mail.python.org/pipermail/python-dev/2012-January/115892.html
CopyrightCopyright (c) 2012 Greenbone Networks GmbH

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