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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="202105-05">
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<title>Mutt, NeoMutt: Denial of service</title>
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<synopsis>A vulnerability in Mutt and NeoMutt could lead to a Denial of
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Service condition.
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</synopsis>
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<product type="ebuild">mutt,neomutt</product>
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<announced>2021-05-26</announced>
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<revised count="1">2021-05-26</revised>
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<bug>788388</bug>
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<bug>788391</bug>
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<access>remote</access>
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<affected>
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<package name="mail-client/mutt" auto="yes" arch="*">
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<unaffected range="ge">2.0.7</unaffected>
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<vulnerable range="lt">2.0.7</vulnerable>
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</package>
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<package name="mail-client/neomutt" auto="yes" arch="*">
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<unaffected range="ge">20210205-r1</unaffected>
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<vulnerable range="lt">20210205-r1</vulnerable>
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</package>
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</affected>
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<background>
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<p>Mutt is a small but very powerful text-based mail client.</p>
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<p>NeoMutt is a command line mail reader (or MUA). It’s a fork of Mutt
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with added features.
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</p>
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</background>
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<description>
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<p>It was discovered that Mutt, and NeoMutt did not properly handle certain
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situations where an IMAP sequence set ends with a comma.
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</p>
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</description>
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<impact type="low">
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<p>A remote attacker could entice a user to connect to a malicious IMAP
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server to cause a Denial of Service condition, or other unspecified
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impacts.
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</p>
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</impact>
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<workaround>
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<p>There is no known workaround at this time.</p>
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</workaround>
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<resolution>
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<p>All Mutt 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 ">=mail-client/mutt-2.0.7"
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</code>
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<p>All NeoMutt 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 ">=mail-client/neomutt-20210205-r1"
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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-2021-32055">CVE-2021-32055</uri>
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</references>
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<metadata tag="requester" timestamp="2021-05-25T22:00:56Z">whissi</metadata>
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<metadata tag="submitter" timestamp="2021-05-26T07:46:31Z">whissi</metadata>
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</glsa>
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