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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200801-17">
<title>Netkit FTP Server: Denial of Service</title>
<synopsis>
Netkit FTP Server contains a Denial of Service vulnerability.
</synopsis>
<product type="ebuild">netkit-ftpd</product>
<announced>January 29, 2008</announced>
<revised>January 29, 2008: 01</revised>
<bug>199206</bug>
<access>remote</access>
<affected>
<package name="net-ftp/netkit-ftpd" auto="yes" arch="*">
<unaffected range="ge">0.17-r7</unaffected>
<vulnerable range="lt">0.17-r7</vulnerable>
</package>
</affected>
<background>
<p>
net-ftp/netkit-ftpd is the Linux Netkit FTP server with optional SSL
support.
</p>
</background>
<description>
<p>
Venustech AD-LAB discovered that an FTP client connected to a
vulnerable server with passive mode and SSL support can trigger an
fclose() function call on an uninitialized stream in ftpd.c.
</p>
</description>
<impact type="normal">
<p>
A remote attacker can send specially crafted FTP data to a server with
passive mode and SSL support, causing the ftpd daemon to crash.
</p>
</impact>
<workaround>
<p>
Disable passive mode or SSL.
</p>
</workaround>
<resolution>
<p>
All Netkit FTP Server users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=net-ftp/netkit-ftpd-0.17-r7&quot;</code>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6263">CVE-2007-6263</uri>
</references>
<metadata tag="requester" timestamp="Sun, 27 Jan 2008 19:17:40 +0000">
rbu
</metadata>
<metadata tag="submitter" timestamp="Mon, 28 Jan 2008 18:03:07 +0000">
falco
</metadata>
<metadata tag="bugReady" timestamp="Mon, 28 Jan 2008 18:03:42 +0000">
falco
</metadata>
</glsa>