blob: ca445d0b2e0be14564fea95727a0d364c44d0f4d [file] [log] [blame]
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200403-08">
<title>oftpd DoS vulnerability</title>
<synopsis>
A remotely-exploitable overflow exists in oftpd, allowing an attacker to
crash the oftpd daemon.
</synopsis>
<product type="ebuild">oftpd</product>
<announced>March 29, 2004</announced>
<revised>May 22, 2006: 02</revised>
<bug>45738</bug>
<access>remote</access>
<affected>
<package name="net-ftp/oftpd" auto="yes" arch="*">
<unaffected range="ge">0.3.7</unaffected>
<vulnerable range="le">0.3.6</vulnerable>
</package>
</affected>
<background>
<p>
Quote from <uri
link="http://www.time-travellers.org/oftpd/">http://www.time-travellers
.org/oftpd/</uri>
</p>
<p>
"oftpd is designed to be as secure as an anonymous FTP server can
possibly be. It runs as non-root for most of the time, and uses the
Unix chroot() command to hide most of the systems directories from
external users - they cannot change into them even if the server is
totally compromised! It contains its own directory change code, so that
it can run efficiently as a threaded server, and its own directory
listing code (most FTP servers execute the system "ls" command to list
files)."
</p>
</background>
<description>
<p>
Issuing a port command with a number higher than 255 causes the server
to crash. The port command may be issued before any authentication
takes place, meaning the attacker does not need to know a valid
username and password in order to exploit this vulnerability.
</p>
</description>
<impact type="normal">
<p>
This exploit causes a denial of service.
</p>
</impact>
<workaround>
<p>
While a workaround is not currently known for this issue, all users are
advised to upgrade to the latest version of the affected package.
</p>
</workaround>
<resolution>
<p>
All users should upgrade to the current version of the affected
package:
</p>
<code>
# emerge sync
# emerge -pv &quot;&gt;=net-ftp/oftpd-0.3.7&quot;
# emerge &quot;&gt;=net-ftp/oftpd-0.3.7&quot;</code>
</resolution>
<references>
<uri link="http://www.time-travellers.org/oftpd/oftpd-dos.html">osftpd DoS Vulnerability</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0376">CVE-2004-0376</uri>
</references>
<metadata tag="submitter" timestamp="Mon, 22 May 2006 05:52:22 +0000">
DerCorny
</metadata>
</glsa>