Gentoo Logo

OpenConnect: User-assisted execution of arbitrary code


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 201405-18 / openconnect
Release Date May 18, 2014
Latest Revision May 18, 2014: 1
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
net-misc/openconnect < 4.08 >= 4.08 All supported architectures

Related bugreports: #457068


A buffer overflow in OpenConnect could result in execution of arbitrary code or Denial of Service.

2.  Impact Information


OpenConnect is a free client for Cisco AnyConnect SSL VPN software.


A stack-based buffer overflow error has been discovered in OpenConnect.


A remote attacker could entice a user to connect to a malicious VPN server, possibly resulting in execution of arbitrary code with the privileges of the process, or a Denial of Service condition.

3.  Resolution Information


There is no known workaround at this time.


All OpenConnect users should upgrade to the latest version:

Code Listing 3.1: Resolution

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=net-misc/openconnect-4.08"

4.  References


Page updated May 18, 2014

Summary: This is a Gentoo Linux Security Advisory

Security Team
Contact Address

Donate to support our development efforts.

Copyright 2001-2015 Gentoo Foundation, Inc. Questions, Comments? Contact us.