GLSA 201402-08: stunnel: Arbitrary code execution

http://security.gentoo.org/

Severity:	normal
Title:	stunnel: Arbitrary code execution
Date:	02/06/2014
Bugs:	#460278
ID:	201402-08

Synopsis

A vulnerability has been found in stunnel, allowing for the execution of arbitrary code.

Background

The stunnel program is designed to work as an SSL encryption wrapper between a client and a local or remote server.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-misc/stunnel	< 4.56-r1	>= 4.56-r1	All supported architectures

Description

A buffer overflow vulnerability has been discovered in stunnel. Please review the CVE identifier referenced below for details.

Impact

A remote attacker could entice a user to connect to a malicious proxy server, resulting in the execution of arbitrary code within the configured chroot directory, with the privileges of the user running stunnel. Please review the references below for details.

Workaround

There is no known workaround at this time.

Resolution

All stunnel users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=net-misc/stunnel-4.56-r1"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201402-08.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.