GLSA 201404-02: libproxy: User-assisted execution of arbitrary code

http://security.gentoo.org/

Severity:	normal
Title:	libproxy: User-assisted execution of arbitrary code
Date:	04/07/2014
Bugs:	#438146
ID:	201404-02

Synopsis

A buffer overflow in libproxy might allow remote attackers to execute arbitrary code.

Background

libproxy is a library for automatic proxy configuration management.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-libs/libproxy	< 0.4.10	>= 0.4.10	All supported architectures

Description

A boundary error when processing the proxy.pac file could cause a stack-based buffer overflow.

Impact

A man-in-the-middle attacker could provide a specially crafted proxy.pac file on a remote server, possibly resulting in execution of arbitrary code with the privileges of the process or a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All libproxy users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=net-libs/libproxy-0.4.10"

References

CVE-2012-4504

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201404-02.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.