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gentoo-overlay/metadata/glsa/glsa-200511-07.xml

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<?xml version="1.0" encoding="utf-8"?>
<?xml-stylesheet href="/xsl/glsa.xsl" type="text/xsl"?>
<?xml-stylesheet href="/xsl/guide.xsl" type="text/xsl"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200511-07">
<title>OpenVPN: Multiple vulnerabilities</title>
<synopsis>
The OpenVPN client is potentially vulnerable to the execution of arbitrary
code and the OpenVPN server is vulnerable to a Denial of Service issue.
</synopsis>
<product type="ebuild">OpenVPN</product>
<announced>November 06, 2005</announced>
<revised>November 06, 2005: 01</revised>
<bug>111116</bug>
<access>remote</access>
<affected>
<package name="net-misc/openvpn" auto="yes" arch="*">
<unaffected range="ge">2.0.4</unaffected>
<vulnerable range="lt">2.0.4</vulnerable>
</package>
</affected>
<background>
<p>
OpenVPN is a multi-platform, full-featured SSL VPN solution.
</p>
</background>
<description>
<p>
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.
</p>
</description>
<impact type="normal">
<p>
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.
</p>
</impact>
<workaround>
<p>
Do not use "pull" or "client" options in the OpenVPN client
configuration file, and use UDP mode for the OpenVPN server.
</p>
</workaround>
<resolution>
<p>
All OpenVPN users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=net-misc/openvpn-2.0.4&quot;</code>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3393">CVE-2005-3393</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3409">CVE-2005-3409</uri>
<uri link="http://openvpn.net/changelog.html">OpenVPN changelog</uri>
</references>
<metadata tag="requester" timestamp="Wed, 02 Nov 2005 12:34:18 +0000">
koon
</metadata>
<metadata tag="submitter" timestamp="Fri, 04 Nov 2005 13:01:51 +0000">
koon
</metadata>
<metadata tag="bugReady" timestamp="Sun, 06 Nov 2005 14:23:34 +0000">
koon
</metadata>
</glsa>