GLSA 200711-07: Python: User-assisted execution of arbitrary code

http://security.gentoo.org/

Severity:	normal
Title:	Python: User-assisted execution of arbitrary code
Date:	11/07/2007
Bugs:	#192876
ID:	200711-07

Synopsis

Multiple integer overflow vulnerabilities have been discovered in Python, possibly resulting in the execution of arbitrary code or a Denial of Service.

Background

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

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
dev-lang/python	< 2.4.4-r6	>= 2.3.6-r3	All supported architectures

Description

Slythers Bro discovered multiple integer overflows in the imageop module, one of them in the tovideo() method, in various locations in files imageop.c, rbgimgmodule.c, and also in other files.

Impact

A remote attacker could entice a user to process specially crafted images with an application using the Python imageop module, resulting in the execution of arbitrary code with the privileges of the user running the application, or a Denial of Service. Note that this vulnerability may or may not be exploitable, depending on the application using the module.

Workaround

There is no known workaround at this time.

Resolution

All Python 2.3.x users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-lang/python-2.3.6-r3"

All Python 2.4.x users should upgrade to the latest version:


    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-lang/python-2.4.4-r6"

References

CVE-2007-4965

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200711-07.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@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.