GLSA 200509-08: Python: Heap overflow in the included PCRE library

http://security.gentoo.org/

Severity:	normal
Title:	Python: Heap overflow in the included PCRE library
Date:	09/12/2005
Bugs:	#104009
ID:	200509-08

Synopsis

The "re" Python module is vulnerable to a heap overflow, possibly leading to the execution of arbitrary code.

Background

Python is an interpreted, interactive, object-oriented, cross-platform programming language. The "re" Python module provides regular expression functions.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
dev-lang/python	< 2.3.5-r2	>= 2.3.5-r2	All supported architectures

Description

The "re" Python module makes use of a private copy of libpcre which is subject to an integer overflow leading to a heap overflow (see GLSA 200508-17).

Impact

An attacker could target a Python-based web application (or SUID application) that would use untrusted data as regular expressions, potentially resulting in the execution of arbitrary code (or privilege escalation).

Workaround

Python users that don't run any Python web application or SUID application (or that run one that wouldn't use untrusted inputs as regular expressions) are not affected by this issue.

Resolution

All Python users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=dev-lang/python-2.3.5-r2"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200509-08.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.