[gentoo-announce] [ GLSA 200907-16 ] Python: Integer overflows

[news 28]

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Gentoo Linux Security Advisory GLSA 200907-16

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http://security.gentoo.org/

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Severity: Normal

Title: Python: Integer overflows

Date: July 19, 2009

Bugs: #246991

ID: 200907-16

 

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Synopsis

========

 

Multiple integer overflows in Python have an unspecified impact.

 

Background

==========

 

Python is an interpreted, interactive, object-oriented programming

language.

 

Affected packages

=================

 

-------------------------------------------------------------------

Package / Vulnerable / Unaffected

-------------------------------------------------------------------

1 dev-lang/python < 2.5.4-r2 >= 2.5.4-r2

*>= 2.4.6

 

Description

===========

 

Chris Evans reported multiple integer overflows in the expandtabs

method, as implemented by (1) the string_expandtabs function in

Objects/stringobject.c and (2) the unicode_expandtabs function in

Objects/unicodeobject.c.

 

Impact

======

 

A remote attacker could exploit these vulnerabilities in Python

applications or daemons that pass user-controlled input to vulnerable

functions. The security impact is currently unknown but may include the

execution of arbitrary code or a Denial of Service.

 

Workaround

==========

 

There is no known workaround at this time.

 

Resolution

==========

 

All Python 2.5 users should upgrade to the latest version:

 

# emerge --sync

# emerge --ask --oneshot --verbose ">=dev-lang/python-2.5.4-r2"

 

All Python 2.4 users should upgrade to the latest version:

 

# emerge --sync

# emerge --ask --oneshot --verbose ">=dev-lang/python-2.4.6"

 

References

==========

 

[ 1 ] CVE-2008-5031

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5031

 

Availability

============

 

This GLSA and any updates to it are available for viewing at

the Gentoo Security Website:

 

http://security.gentoo.org/glsa/glsa-200907-16.xml

 

Concerns?

=========

 

Security is a primary focus of Gentoo Linux and ensuring the

confidentiality and security of our users machines is of utmost

importance to us. Any security concerns should be addressed to

security ( -at -) gentoo.org or alternatively, you may file a bug at

https://bugs.gentoo.org.

 

License

=======

 

Copyright 2009 Gentoo Foundation, Inc; referenced text

belongs to its owner(s).

 

The contents of this document are licensed under the

Creative Commons - Attribution / Share Alike license.

 

http://creativecommons.org/licenses/by-sa/2.5