blob: c659206592c39ea622250c12c97368a61683700e [file] [log] [blame]
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200803-25">
<title>Dovecot: Multiple vulnerabilities</title>
<synopsis>
Two vulnerabilities in Dovecot allow for information disclosure and
argument injection.
</synopsis>
<product type="ebuild">dovecot</product>
<announced>March 18, 2008</announced>
<revised>March 18, 2008: 01</revised>
<bug>212336</bug>
<bug>213030</bug>
<access>remote</access>
<affected>
<package name="net-mail/dovecot" auto="yes" arch="*">
<unaffected range="ge">1.0.13-r1</unaffected>
<vulnerable range="lt">1.0.13-r1</vulnerable>
</package>
</affected>
<background>
<p>
Dovecot is a lightweight, fast and easy to configure IMAP and POP3 mail
server.
</p>
</background>
<description>
<p>
Dovecot uses the group configured via the "mail_extra_groups" setting,
which should be used to create lockfiles in the /var/mail directory,
when accessing arbitrary files (CVE-2008-1199). Dovecot does not escape
TAB characters in passwords when saving them, which might allow for
argument injection in blocking passdbs such as MySQL, PAM or shadow
(CVE-2008-1218).
</p>
</description>
<impact type="normal">
<p>
Remote attackers can exploit the first vulnerability to disclose
sensitive data, such as the mail of other users, or modify files or
directories that are writable by group via a symlink attack. Please
note that the "mail_extra_groups" setting is set to the "mail" group by
default when the "mbox" USE flag is enabled.
</p>
<p>
The second vulnerability can be abused to inject arguments for internal
fields. No exploitation vectors are known for this vulnerability that
affect previously stable versions of Dovecot in Gentoo.
</p>
</impact>
<workaround>
<p>
There is no known workaround at this time.
</p>
</workaround>
<resolution>
<p>
All Dovecot users should upgrade to the latest version:
</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=net-mail/dovecot-1.0.13-r1&quot;</code>
<p>
This version removes the "mail_extra_groups" option and introduces a
"mail_privileged_group" setting which is handled safely.
</p>
</resolution>
<references>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1199">CVE-2008-1199</uri>
<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1218">CVE-2008-1218</uri>
</references>
<metadata tag="requester" timestamp="Tue, 11 Mar 2008 18:35:36 +0000">
keytoaster
</metadata>
<metadata tag="submitter" timestamp="Wed, 12 Mar 2008 01:34:31 +0000">
rbu
</metadata>
<metadata tag="bugReady" timestamp="Tue, 18 Mar 2008 11:19:55 +0000">
rbu
</metadata>
</glsa>