- ---------------------------------------------------------------------
Red Hat Security Advisory
Synopsis: Moderate: python security update
Advisory ID: RHSA-2007:1077-01
Advisory URL: https://rhn.redhat.com/errata/RHSA-2007-1077.html
Issue date: 2007-12-10
Updated on: 2007-12-10
Product: Red Hat Enterprise Linux
CVE Names: CVE-2006-7228 CVE-2007-2052
- ---------------------------------------------------------------------
1. Summary:
Updated python packages that fix several security issues are now available
for Red Hat Enterprise Linux 2.1.
This update has been rated as having moderate security impact by the Red
Hat Security Response Team.
2. Relevant releases/architectures:
Red Hat Enterprise Linux AS (Advanced Server) version 2.1 - i386, ia64
Red Hat Linux Advanced Workstation 2.1 - ia64
Red Hat Enterprise Linux ES version 2.1 - i386
Red Hat Enterprise Linux WS version 2.1 - i386
3. Problem description:
Python is an interpreted, interactive, object-oriented programming
language.
An integer overflow flaw was discovered in the way Python's pcre module
handled certain regular expressions. If a Python application used the pcre
module to compile and execute untrusted regular expressions, it may be
possible to cause the application to crash, or allow arbitrary code
execution with the privileges of the Python interpreter. (CVE-2006-7228)
A flaw was discovered in the strxfrm() function of Python's locale module.
Strings generated by this function were not properly NULL-terminated, which
could possibly cause disclosure of data stored in the memory of a Python
application using this function. (CVE-2007-2052)
Users of Python are advised to upgrade to these updated packages, which
contain backported patches to resolve these issues.
4. Solution:
Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.
This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/FAQ_58_10188
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://www.redhat.com/security/team/key/#package
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12-10-2007, 05:41 PM
Moderate: python security update
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Hash: SHA1
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Red Hat Security Advisory
Synopsis: Moderate: python security update
Advisory ID: RHSA-2007:1076-02
Advisory URL: https://rhn.redhat.com/errata/RHSA-2007-1076.html
Issue date: 2007-12-10
Updated on: 2007-12-10
Product: Red Hat Enterprise Linux
CVE Names: CVE-2006-7228 CVE-2007-2052 CVE-2007-4965
- ---------------------------------------------------------------------
1. Summary:
Updated python packages that fix several security issues are now available
for Red Hat Enterprise Linux 3 and 4.
This update has been rated as having moderate security impact by the Red
Hat Security Response Team.
2. Relevant releases/architectures:
Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Desktop version 3 - i386, x86_64
Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64
Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux Desktop version 4 - i386, x86_64
Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64
3. Problem description:
Python is an interpreted, interactive, object-oriented programming
language.
An integer overflow flaw was discovered in the way Python's pcre module
handled certain regular expressions. If a Python application used the pcre
module to compile and execute untrusted regular expressions, it may be
possible to cause the application to crash, or allow arbitrary code
execution with the privileges of the Python interpreter. (CVE-2006-7228)
A flaw was discovered in the strxfrm() function of Python's locale module.
Strings generated by this function were not properly NULL-terminated. This
may possibly cause disclosure of data stored in the memory of a Python
application using this function. (CVE-2007-2052)
Multiple integer overflow flaws were discovered in Python's imageop module.
If an application written in Python used the imageop module to process
untrusted images, it could cause the application to crash, enter an
infinite loop, or possibly execute arbitrary code with the privileges of
the Python interpreter. (CVE-2007-4965)
Users of Python are advised to upgrade to these updated packages, which
contain backported patches to resolve these issues.
4. Solution:
Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.
This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/FAQ_58_10188
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://www.redhat.com/security/team/key/#package
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05-05-2011, 06:59 PM
Moderate: python security update
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Hash: SHA1
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Red Hat Security Advisory
Synopsis: Moderate: python security update
Advisory ID: RHSA-2011:0491-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2011-0491.html
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
================================================== ===================
1. Summary:
Updated python packages that fix multiple security issues are now available
for Red Hat Enterprise Linux 4.
The Red Hat Security Response Team has rated this update as having moderate
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux Desktop version 4 - i386, x86_64
Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64
3. Description:
Python is an interpreted, interactive, object-oriented programming
language.
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)
This update makes Python use the system Expat library rather than its own
internal copy; therefore, users must have the version of Expat shipped with
RHSA-2009:1625 installed, or a later version, to resolve the CVE-2009-3720
issue.
All Python users should upgrade to these updated packages, which contain
backported patches to correct these issues.
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/kb/docs/DOC-11259
5. Bugs fixed (http://bugzilla.redhat.com/):
531697 - CVE-2009-3720 expat: buffer over-read and crash on XML with malformed UTF-8 sequences
590690 - CVE-2010-1634 python: audioop: incorrect integer overflow checks
598197 - CVE-2010-2089 Python: Memory corruption in audioop module
632200 - CVE-2010-3493 Python: SMTP proxy RFC 2821 module DoS (uncaught exception) (Issue #9129)
680094 - CVE-2011-1015 python (CGIHTTPServer): CGI script source code disclosure
690560 - CVE-2011-1521 python (urllib, urllib2): Improper management of ftp:// and file:// URL schemes (Issue #11662)
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05-05-2011, 06:59 PM
Moderate: python security update
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Hash: SHA1
================================================== ===================
Red Hat Security Advisory
Synopsis: Moderate: python security update
Advisory ID: RHSA-2011:0492-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2011-0492.html
Issue date: 2011-05-05
CVE Names: CVE-2009-3720 CVE-2010-3493 CVE-2011-1015
CVE-2011-1521
================================================== ===================
1. Summary:
Updated python packages that fix multiple security issues are now available
for Red Hat Enterprise Linux 5.
The Red Hat Security Response Team has rated this update as having moderate
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links in the References section.
2. Relevant releases/architectures:
RHEL Desktop Workstation (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
3. Description:
Python is an interpreted, interactive, object-oriented programming
language.
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)
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)
This update makes Python use the system Expat library rather than its own
internal copy; therefore, users must have the version of Expat shipped with
RHSA-2009:1625 installed, or a later version, to resolve the CVE-2009-3720
issue.
All Python users should upgrade to these updated packages, which contain
backported patches to correct these issues.
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/kb/docs/DOC-11259
5. Bugs fixed (http://bugzilla.redhat.com/):
531697 - CVE-2009-3720 expat: buffer over-read and crash on XML with malformed UTF-8 sequences
632200 - CVE-2010-3493 Python: SMTP proxy RFC 2821 module DoS (uncaught exception) (Issue #9129)
680094 - CVE-2011-1015 python (CGIHTTPServer): CGI script source code disclosure
690560 - CVE-2011-1521 python (urllib, urllib2): Improper management of ftp:// and file:// URL schemes (Issue #11662)
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
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06-18-2012, 01:54 PM
Moderate: python security update
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
================================================== ===================
Red Hat Security Advisory
Synopsis: Moderate: python security update
Advisory ID: RHSA-2012:0744-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-0744.html
Issue date: 2012-06-18
CVE Names: CVE-2011-4940 CVE-2011-4944 CVE-2012-0845
CVE-2012-1150
================================================== ===================
1. Summary:
Updated python packages that fix multiple security issues are now available
for Red Hat Enterprise Linux 6.
The Red Hat Security Response Team has rated this update as having moderate
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links 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 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 SimpleXMLRPCServer module handled
clients disconnecting prematurely. A remote attacker could use this flaw to
cause excessive CPU consumption on a server using SimpleXMLRPCServer.
(CVE-2012-0845)
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 Wälde 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.
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/knowledge/articles/11258
5. Bugs fixed (http://bugzilla.redhat.com/):
750555 - CVE-2012-1150 python: hash table collisions CPU usage DoS (oCERT-2011-003)
758905 - CVE-2011-4944 python: distutils creates ~/.pypirc insecurely
789790 - CVE-2012-0845 python: SimpleXMLRPCServer CPU usage DoS via malformed XML-RPC request
803500 - CVE-2011-4940 python: potential XSS in SimpleHTTPServer's list_directory()
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06-18-2012, 01:55 PM
Moderate: python security update
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
================================================== ===================
Red Hat Security Advisory
Synopsis: Moderate: python security update
Advisory ID: RHSA-2012:0745-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-0745.html
Issue date: 2012-06-18
CVE Names: CVE-2011-4940 CVE-2011-4944 CVE-2012-1150
================================================== ===================
1. Summary:
Updated python packages that fix multiple security issues are now available
for Red Hat Enterprise Linux 5.
The Red Hat Security Response Team has rated this update as having moderate
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links in the References section.
2. Relevant releases/architectures:
RHEL Desktop Workstation (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
3. Description:
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 Wälde 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.
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/knowledge/articles/11258
5. Bugs fixed (http://bugzilla.redhat.com/):
750555 - CVE-2012-1150 python: hash table collisions CPU usage DoS (oCERT-2011-003)
758905 - CVE-2011-4944 python: distutils creates ~/.pypirc insecurely
803500 - CVE-2011-4940 python: potential XSS in SimpleHTTPServer's list_directory()
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/#package
Moderate: python security update
