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<?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="202101-01">
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<title>Dovecot: Multiple vulnerabilities</title>
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<synopsis>Multiple vulnerabilities have been found in Dovecot, the worst of
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which could allow remote attackers to cause a Denial of Service condition.
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</synopsis>
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<product type="ebuild">dovecot</product>
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<announced>2021-01-10</announced>
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<revised count="1">2021-01-10</revised>
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<bug>763525</bug>
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<access>local, 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">2.3.13</unaffected>
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<vulnerable range="lt">2.3.13</vulnerable>
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</package>
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</affected>
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<background>
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<p>Dovecot is an open source IMAP and POP3 email server.</p>
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</background>
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<description>
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<p>Multiple vulnerabilities have been discovered in Dovecot. Please review
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the CVE identifiers referenced below for details.
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</p>
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</description>
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<impact type="normal">
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<p>A remote attacker could send a specially crafted mail or send a
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specially crafted IMAP command possibly resulting in a Denial of Service
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condition or an authenticated remote attacker might be able to discover
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the file system directory structure and access other users’ emails.
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</p>
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</impact>
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<workaround>
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<p>The information disclosure vulnerability can be mitigated by disabling
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IMAP hibernation feature which isn’t enabled by default.
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</p>
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</workaround>
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<resolution>
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<p>All Dovecot users should upgrade to the latest version:</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose ">=net-mail/dovecot-2.3.13"
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</code>
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</resolution>
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<references>
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<uri link="https://nvd.nist.gov/vuln/detail/CVE-2020-24386">CVE-2020-24386</uri>
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<uri link="https://nvd.nist.gov/vuln/detail/CVE-2020-25275">CVE-2020-25275</uri>
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</references>
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<metadata tag="requester" timestamp="2021-01-06T15:39:45Z">whissi</metadata>
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<metadata tag="submitter" timestamp="2021-01-10T09:16:29Z">whissi</metadata>
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</glsa>
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