Scientific Linux 4.x & 5.x Moderate: Python Remote Code Execution Risks

Date: Fri, 6 May 2011 15:58:15 -0500
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Sender: Security Errata for Scientific Linux
 
From: Jason Harrington 
Organization: FNAL/CD/REX/SAG
Subject: Security ERRATA Moderate: python on SL4.x, SL5.x i386/x86_64
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Synopsis: Moderate: python security update
Issue date: 2011-05-05
CVE Names: CVE-2009-3720
 CVE-2010-1634
 CVE-2010-2089
 CVE-2010-3493
 CVE-2011-1015
 CVE-2011-1521

A flaw was found in the Python urllib and urllib2 libraries where they
would not differentiate between different target URLs when handling
automatic redirects. This caused Python applications using these modules to
follow any new URL that they understood, including the "file://" URL type.
This could allow a remote server to force a local Python application to
read a local file instead of the remote one, possibly exposing local files
that were not meant to be exposed. (CVE-2011-1521)

Multiple flaws were found in the Python audioop module. Supplying certain
inputs could cause the audioop module to crash or, possibly, execute
arbitrary code. (CVE-2010-1634, CVE-2010-2089)

A race condition was found in the way the Python smtpd module handled new
connections. A remote user could use this flaw to cause a Python script
using the smtpd module to terminate. (CVE-2010-3493)

An information disclosure flaw was found in the way the Python
CGIHTTPServer module processed certain HTTP GET requests. A remote attacker
could use a specially-crafted request to obtain the CGI script's source
code. (CVE-2011-1015)

A buffer over-read flaw was found in the way the Python Expat parser
handled malformed UTF-8 sequences when processing XML files. A
specially-crafted XML file could cause Python applications using the Python
Expat parser to crash while parsing the file. (CVE-2009-3720)

SL 4.x
 SRPMS:
 python-2.3.4-14.10.el4.src.rpm

 i386:
 python-2.3.4-14.10.el4.i386.rpm
 python-devel-2.3.4-14.10.el4.i386.rpm
 python-docs-2.3.4-14.10.el4.i386.rpm
 python-tools-2.3.4-14.10.el4.i386.rpm
 tkinter-2.3.4-14.10.el4.i386.rpm

 x86_64:
 python-2.3.4-14.10.el4.x86_64.rpm
 python-devel-2.3.4-14.10.el4.x86_64.rpm
 python-docs-2.3.4-14.10.el4.x86_64.rpm
 python-tools-2.3.4-14.10.el4.x86_64.rpm
 tkinter-2.3.4-14.10.el4.x86_64.rpm

SL 5.x
 SRPMS:
 python-2.4.3-44.el5.src.rpm

 i386:
 python-2.4.3-44.el5.i386.rpm
 python-devel-2.4.3-44.el5.i386.rpm
 python-libs-2.4.3-44.el5.i386.rpm
 python-tools-2.4.3-44.el5.i386.rpm
 tkinter-2.4.3-44.el5.i386.rpm

 x86_64:
 python-2.4.3-44.el5.x86_64.rpm
 python-devel-2.4.3-44.el5.i386.rpm
 python-devel-2.4.3-44.el5.x86_64.rpm
 python-libs-2.4.3-44.el5.x86_64.rpm
 python-tools-2.4.3-44.el5.x86_64.rpm
 tkinter-2.4.3-44.el5.x86_64.rpm

- Scientific Linux Development Team