1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<link rel="stylesheet" href="sitestyle.css" type="text/css">
<meta name="description" content="The Fetchmail Project">
<meta name="keywords" content="fetchmail, pop3, imap, email, mail">
<meta name="MSSmartTagsPreventParsing" content="TRUE">
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>Fetchmail</title>
</head>
<body>
<div id="Header">
<table width="100%" cellpadding="0" summary="Canned page header">
<tr>
<td>Fetchmail</td>
<td align="right"><!-- update date -->2021-07-28</td>
</tr>
</table>
</div>
<div id="Menu">
<hr>
<a href="index.html" title="Main">Main</a><br>
<a href="fetchmail-features.html">Features</a><br>
<a href="fetchmail-man.html">Manual</a><br>
<a href="fetchmail-FAQ.html" title="Fetchmail FAQ">FAQ</a><br>
<a href="fetchmail-FAQ.pdf" title="Fetchmail FAQ as PDF">FAQ (PDF)</a><br>
<a href="design-notes.html">Design Notes</a><br>
<a href="https://sourceforge.net/projects/fetchmail/files/">Download</a><br>
Security/Errata<br>
<a href="https://gitlab.com/fetchmail/fetchmail/">Development</a><br>
<a href="https://sourceforge.net/projects/fetchmail/">Project Page</a><br>
<hr>
</div>
<div id="Content">
<h1>Fetchmail Security and Errata Information</h1>
<p>These security issues (listed immediately below) and critical
issues have become
known to the fetchmail maintainer to the date mentioned above.</p>
<p>Note that fetchmail 6.3.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-2012-3482"
href="http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2012-3482">CVE-2012-3482:</a>
-->
<li><a name="cve-2021-39272"
href="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39272">CVE-2021-39272:</a>
Fetchmail would <a href="fetchmail-SA-2021-02.txt">fail to negotiate a TLS encrypted session in some circumstances, continuing a clear-text connection.</a></li>
<li><a name="cve-2021-36386"
href="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-36386">CVE-2021-36386:</a>
Fetchmail could <a href="fetchmail-SA-2021-01.txt">log possibly
sensitive data or garbage, or crash, when logging information longer
than 2 kB, on some systems.</a></li>
<li><a name="cve-2012-3482"
href="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-3482">CVE-2012-3482:</a>
Fetchmail could <a href="fetchmail-SA-2012-02.txt">crash and
possibly reveal fragments of confidential data</a> during
NTLM authentication.</li>
<li><a name="cve-2011-3389"
href="https://nvd.nist.gov/vuln/detail/CVE-2011-3389">CVE-2011-3389:</a>
<a href="fetchmail-SA-2012-01.txt">Fetchmail was vulnerable
to chosen-plaintext attacks against cipher block
chaining initialization vectors because it disabled an
OpenSSL countermeasure against this attack.</a>
</li>
<li><a name="cve-2011-1947"
href="https://nvd.nist.gov/vuln/detail/CVE-2011-1947">CVE-2011-1947:</a>
Fetchmail <a href="fetchmail-SA-2011-01.txt"> could hang for
indefinite amounts of time during STARTTLS negotiations</a>,
causing mail fetches to stall. This was a long-standing bug
fixed in release 6.3.20.</li>
<li><a name="fetchmail-EN-2010-03">EN-2010-03</a>: Fetchmail <a href="fetchmail-EN-2010-03.txt">fails
POP3/IMAP authentication by not performing SASL AUTH
properly.</a> This was a long-standing bug fixed in release
6.3.18.</li>
<li><a name="cve-2010-1167"
href="https://nvd.nist.gov/vuln/detail/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="https://nvd.nist.gov/vuln/detail/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="https://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="https://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="https://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="https://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="https://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="https://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="https://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="https://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="https://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="https://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="https://sourceforge.net/projects/fetchmail/files/">update
to the newest fetchmail version</a>.</strong></p>
</div>
</body>
</html>
|
