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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200608-06">
<title>Courier MTA: Denial of Service vulnerability</title>
<synopsis>
Courier MTA has fixed a DoS issue related to usernames containing a "="
character.
</synopsis>
<product type="ebuild">Courier</product>
<announced>2006-08-04</announced>
<revised count="01">2006-08-04</revised>
<bug>135005</bug>
<access>remote</access>
<affected>
<package name="mail-mta/courier" auto="yes" arch="*">
<unaffected range="ge">0.53.2</unaffected>
<vulnerable range="lt">0.53.2</vulnerable>
</package>
</affected>
<background>
<p>
Courier MTA is an integrated mail and groupware server based on open
protocols.
</p>
</background>
<description>
<p>
Courier MTA has fixed a security issue relating to usernames containing
the "=" character, causing high CPU utilization.
</p>
</description>
<impact type="normal">
<p>
An attacker could exploit this vulnerability by sending a specially
crafted email to a mail gateway running a vulnerable version of Courier
MTA.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All Courier MTA users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-mta/courier-0.53.2"</code>
</resolution>
<references>
<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2659">CVE-2006-2659</uri>
</references>
<metadata tag="requester" timestamp="2006-08-02T13:22:29Z">
koon
</metadata>
<metadata tag="bugReady" timestamp="2006-08-02T13:22:37Z">
koon
</metadata>
<metadata tag="submitter" timestamp="2006-08-02T13:39:08Z">
dizzutch
</metadata>
</glsa>
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