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<?xml version="1.0" encoding="utf-8"?>
<glsa id="200511-07">
<title>OpenVPN: Multiple vulnerabilities</title>
The OpenVPN client is potentially vulnerable to the execution of arbitrary
code and the OpenVPN server is vulnerable to a Denial of Service issue.
<product type="ebuild">OpenVPN</product>
<announced>November 06, 2005</announced>
<revised>November 06, 2005: 01</revised>
<package name="net-misc/openvpn" auto="yes" arch="*">
<unaffected range="ge">2.0.4</unaffected>
<vulnerable range="lt">2.0.4</vulnerable>
OpenVPN is a multi-platform, full-featured SSL VPN solution.
The OpenVPN client contains a format string bug in the handling of
the foreign_option in options.c. Furthermore, when the OpenVPN server
runs in TCP mode, it may dereference a NULL pointer under specific
error conditions.
<impact type="normal">
A remote attacker could setup a malicious OpenVPN server and trick
the user into connecting to it, potentially executing arbitrary code on
the client's computer. A remote attacker could also exploit the NULL
dereference issue by sending specific packets to an OpenVPN server
running in TCP mode, resulting in a Denial of Service condition.
Do not use "pull" or "client" options in the OpenVPN client
configuration file, and use UDP mode for the OpenVPN server.
All OpenVPN users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=net-misc/openvpn-2.0.4&quot;</code>
<uri link="">CVE-2005-3393</uri>
<uri link="">CVE-2005-3409</uri>
<uri link="">OpenVPN changelog</uri>
<metadata tag="requester" timestamp="Wed, 02 Nov 2005 12:34:18 +0000">
<metadata tag="submitter" timestamp="Fri, 04 Nov 2005 13:01:51 +0000">
<metadata tag="bugReady" timestamp="Sun, 06 Nov 2005 14:23:34 +0000">