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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200805-05">
<title>Wireshark: Denial of Service</title>
<synopsis>
Multiple Denial of Service vulnerabilities have been discovered in
Wireshark.
</synopsis>
<product type="ebuild">wireshark</product>
<announced>May 07, 2008</announced>
<revised>May 07, 2008: 01</revised>
<bug>215276</bug>
<access>remote</access>
<affected>
<package name="net-analyzer/wireshark" auto="yes" arch="*">
<unaffected range="ge">1.0.0</unaffected>
<vulnerable range="lt">1.0.0</vulnerable>
</package>
</affected>
<background>
<p>
Wireshark is a network protocol analyzer with a graphical front-end.
</p>
</background>
<description>
<p>
Errors exist in:
</p>
<ul>
<li>
the X.509sat dissector because of an uninitialized variable and the
Roofnet dissector because a NULL pointer may be passed to the
g_vsnprintf() function (CVE-2008-1561).</li>
<li>
the LDAP dissector because a NULL pointer may be passed to the
ep_strdup_printf() function (CVE-2008-1562).</li>
<li>
the SCCP dissector because it does not reset a pointer once the packet
has been processed (CVE-2008-1563).</li>
</ul>
</description>
<impact type="normal">
<p>
A remote attacker could exploit these vulnerabilities by sending a
malformed packet or enticing a user to read a malformed packet trace
file, causing a Denial of Service.
</p>
</impact>
<workaround>
<p>
Disable the X.509sat, Roofnet, LDAP, and SCCP dissectors.
</p>
</workaround>
<resolution>
<p>
All Wireshark users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=net-analyzer/wireshark-1.0.0&quot;</code>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1561">CVE-2008-1561</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1562">CVE-2008-1562</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1563">CVE-2008-1563</uri>
</references>
<metadata tag="requester" timestamp="Tue, 29 Apr 2008 13:11:47 +0000">
vorlon
</metadata>
<metadata tag="bugReady" timestamp="Tue, 29 Apr 2008 13:12:26 +0000">
vorlon
</metadata>
<metadata tag="submitter" timestamp="Tue, 29 Apr 2008 15:31:30 +0000">
mfleming
</metadata>
</glsa>