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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200701-13">
<title>Fetchmail: Denial of Service and password disclosure</title>
<synopsis>
Fetchmail has been found to have numerous vulnerabilities allowing for
Denial of Service and password disclosure.
</synopsis>
<product type="ebuild">fetchmail</product>
<announced>January 22, 2007</announced>
<revised>January 22, 2007: 01</revised>
<bug>160463</bug>
<access>remote</access>
<affected>
<package name="net-mail/fetchmail" auto="yes" arch="*">
<unaffected range="ge">6.3.6</unaffected>
<vulnerable range="lt">6.3.6</vulnerable>
</package>
</affected>
<background>
<p>
Fetchmail is a remote mail retrieval and forwarding utility.
</p>
</background>
<description>
<p>
Neil Hoggarth has discovered that when delivering messages to a message
delivery agent by means of the "mda" option, Fetchmail passes a NULL
pointer to the ferror() and fflush() functions when refusing a message.
Isaac Wilcox has discovered numerous means of plain-text password
disclosure due to errors in secure connection establishment.
</p>
</description>
<impact type="normal">
<p>
An attacker could deliver a message via Fetchmail to a message delivery
agent configured to refuse the message, and crash the Fetchmail
process. SMTP and LMTP delivery modes are not affected by this
vulnerability. An attacker could also perform a Man-in-the-Middle
attack, and obtain plain-text authentication credentials of users
connecting to a Fetchmail process.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All fetchmail users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=net-mail/fetchmail-6.3.6&quot;</code>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5867">CVE-2006-5867</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5974">CVE-2006-5974</uri>
</references>
<metadata tag="requester" timestamp="Mon, 15 Jan 2007 23:33:39 +0000">
falco
</metadata>
<metadata tag="bugReady" timestamp="Tue, 16 Jan 2007 17:08:58 +0000">
falco
</metadata>
<metadata tag="submitter" timestamp="Thu, 18 Jan 2007 02:05:45 +0000">
shellsage
</metadata>
</glsa>