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82 lines
2.8 KiB
82 lines
2.8 KiB
<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
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<glsa id="200803-25">
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<title>Dovecot: Multiple vulnerabilities</title>
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<synopsis>
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Two vulnerabilities in Dovecot allow for information disclosure and
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argument injection.
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</synopsis>
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<product type="ebuild">dovecot</product>
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<announced>2008-03-18</announced>
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<revised count="01">2008-03-18</revised>
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<bug>212336</bug>
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<bug>213030</bug>
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<access>remote</access>
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<affected>
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<package name="net-mail/dovecot" auto="yes" arch="*">
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<unaffected range="ge">1.0.13-r1</unaffected>
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<vulnerable range="lt">1.0.13-r1</vulnerable>
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</package>
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</affected>
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<background>
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<p>
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Dovecot is a lightweight, fast and easy to configure IMAP and POP3 mail
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server.
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</p>
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</background>
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<description>
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<p>
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Dovecot uses the group configured via the "mail_extra_groups" setting,
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which should be used to create lockfiles in the /var/mail directory,
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when accessing arbitrary files (CVE-2008-1199). Dovecot does not escape
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TAB characters in passwords when saving them, which might allow for
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argument injection in blocking passdbs such as MySQL, PAM or shadow
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(CVE-2008-1218).
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</p>
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</description>
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<impact type="normal">
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<p>
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Remote attackers can exploit the first vulnerability to disclose
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sensitive data, such as the mail of other users, or modify files or
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directories that are writable by group via a symlink attack. Please
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note that the "mail_extra_groups" setting is set to the "mail" group by
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default when the "mbox" USE flag is enabled.
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</p>
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<p>
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The second vulnerability can be abused to inject arguments for internal
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fields. No exploitation vectors are known for this vulnerability that
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affect previously stable versions of Dovecot in Gentoo.
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</p>
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</impact>
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<workaround>
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<p>
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There is no known workaround at this time.
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</p>
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</workaround>
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<resolution>
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<p>
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All Dovecot users should upgrade to the latest version:
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</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose ">=net-mail/dovecot-1.0.13-r1"</code>
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<p>
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This version removes the "mail_extra_groups" option and introduces a
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"mail_privileged_group" setting which is handled safely.
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</p>
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</resolution>
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<references>
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<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1199">CVE-2008-1199</uri>
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<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1218">CVE-2008-1218</uri>
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</references>
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<metadata tag="requester" timestamp="2008-03-11T18:35:36Z">
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keytoaster
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</metadata>
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<metadata tag="submitter" timestamp="2008-03-12T01:34:31Z">
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rbu
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</metadata>
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<metadata tag="bugReady" timestamp="2008-03-18T11:19:55Z">
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rbu
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</metadata>
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</glsa>
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