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<td>Fetchmail</td>
<td align="right"><!-- update date -->2010-05-06</td>
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    <h1>Fetchmail Security Information</h1>
    <p>These security issues (listed immediately below) have become
    known to the fetchmail maintainer to the date mentioned above. Note
    that fetchmail 6.2.X and older are no longer supported and contain
    some of the problems mentioned below, even if they aren't mentioned
    in the security announcements:</p>
    <ul>
	<li><a name="cve-2010-1167"
	    href="http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2010-1167">CVE-2010-1167:</a>
	Fetchmail <a href="fetchmail-SA-2010-02.txt">could exhaust all
	    available memory and abort on certain computers (for
	    instance Linux) in multibyte locales (for instance UTF-8)
	    when dumping malformed headers in debug (-v -v) mode.</a>
	This bug was introduced long before 6.0.0 and has been fixed in
	release 6.3.17.</li>
	<li><a name="cve-2010-0562"
	    href="http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2010-0562">CVE-2010-0562:</a> Fetchmail <a href="fetchmail-SA-2010-01.txt">would overrun the heap when displaying X.509 TLS/SSL certificates with characters with high bit set in verbose mode on platforms where char is a signed type.</a> This bug was introduced in release 6.3.11 and has been fixed in release 6.3.14.</li>
	<li><a name="cve-2009-2666" href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2666">CVE-2009-2666:</a> Fetchmail <a href="fetchmail-SA-2009-01.txt">was found to validate SSL/TLS X.509 certificates improperly and allow man-in-the-middle-attacks to go undetected.</a> This bug has been fixed in release 6.3.11. For previous versions, use the <a href="fetchmail-SA-2009-01.txt">patch contained in the security announcement.</a></li>
	<li><a name="cve-2008-2711" href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2711">CVE-2008-2711:</a> Fetchmail can <a href="fetchmail-SA-2008-01.txt">crash in verbose mode when logging long message headers.</a> This bug has been fixed in release 6.3.9. For 6.3.8, use the <a href="fetchmail-SA-2008-01.txt">patch contained in the security announcement.</a></li>
	<li><a name="cve-2007-4565" href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4565">CVE-2007-4565:</a> Fetchmail can <a href="fetchmail-SA-2007-02.txt">crash when the SMTP server refuses a warning message generated by fetchmail.</a> This bug was introduced in fetchmail 4.6.8 and has been fixed in release 6.3.9. For 6.3.8, use the <a href="fetchmail-SA-2007-02.txt">patch contained in this security announcement.</a></li>
	<li><a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1558">CVE-2007-1558:</a> Fetchmail's APOP client was found to <a href="fetchmail-SA-2007-01.txt">validate APOP challenges insufficiently, making man-in-the-middle attacks on APOP secrets unnecessarily easier than need be.</a> This bug was long-standing, fetchmail 6.3.8 and newer validate the APOP challenge more strictly.</li>
	<li><a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5974">CVE-2006-5974:</a> Fetchmail was found to <a href="fetchmail-SA-2006-03.txt">crash when refusing a message that was bound to be delivered by an MDA.</a> This bug was introduced into fetchmail 6.3.5 and fixed in 6.3.6.</li>
	<li><a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5867">CVE-2006-5867:</a> Fetchmail was found to <a href="fetchmail-SA-2006-02.txt">omit TLS or send the password in clear text despite the configuration stating otherwise.</a> This was a long-standing bug reported by Isaac Wilcox, fixed in fetchmail 6.3.6. There will be no 6.2.X releases to fix this bug in 6.2.X.</li>
	<li><a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0321">CVE-2006-0321:</a> Fetchmail was found to <a href="fetchmail-SA-2006-01.txt">crash after bouncing a message with bad addresses. This bug was introduced with fetchmail 6.3.0 and fixed in fetchmail 6.3.2.</a></li>
	<li><a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-4348">CVE-2005-4348:</a> Fetchmail was found to contain <a href="fetchmail-SA-2005-03.txt">a bug (null pointer dereference) that can be exploited to a denial of service attack</a> when fetchmail runs in multidrop mode. 6.2.5.5 and 6.3.1 have this bug fixed.</li>
	<li><a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3088">CVE-2005-3088:</a> Fetchmailconf was found to <a href="fetchmail-SA-2005-02.txt">open the configuration files world-readable, writing data to them, and only then tightening up permissions</a>, which may cause password information to be visible to other users. This bug affected fetchmail 6.2.0, 6.2.5 and 6.2.5.2.  The bug is fixed in fetchmail 6.2.5.4 and 6.3.0.</li>
	<li><a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2335">CVE-2005-2335:</a> Fetchmail was found to contain a <a href="fetchmail-SA-2005-01.txt">remotely exploitable code injection vulnerability (potentially privileged code)</a> in the POP3 code, affecting both the 6.2.0 and 6.2.5 releases. 6.2.5.2, 6.2.5.4 and 6.3.0 have got this bug fixed. (Other versions have not been checked if they contain this bug.)</li>
</ul>

<p style="font-size:100%"><strong>Please <a
	href="http://developer.berlios.de/project/showfiles.php?group_id=1824">update
	to the newest fetchmail version</a>.</strong></p>
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