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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="202101-04">
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<title>Mozilla Firefox: Remote code execution</title>
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<synopsis>A use-after-free in Mozilla Firefox's SCTP handling may allow
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remote code execution.
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</synopsis>
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<product type="ebuild">firefox,thunderbird</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>764161</bug>
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<access>remote</access>
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<affected>
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<package name="www-client/firefox" auto="yes" arch="*">
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<unaffected range="ge" slot="0/esr78">78.6.1</unaffected>
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<unaffected range="ge">84.0.2</unaffected>
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<vulnerable range="lt">84.0.2</vulnerable>
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</package>
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<package name="www-client/firefox-bin" auto="yes" arch="*">
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<unaffected range="ge" slot="0/esr78">78.6.1</unaffected>
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<unaffected range="ge">84.0.2</unaffected>
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<vulnerable range="lt">84.0.2</vulnerable>
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</package>
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</affected>
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<background>
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<p>Mozilla Firefox is a popular open-source web browser from the Mozilla
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project.
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</p>
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</background>
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<description>
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<p>A use-after-free bug was discovered in Mozilla Firefox’s handling of
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SCTP.
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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 possibly execute arbitrary code with the
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privileges of the process, or cause a Denial of Service condition.
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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 Firefox ESR 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
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">=www-client/firefox-78.6.1:0/esr78"
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</code>
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<p>All Firefox ESR binary 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
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">=www-client/firefox-bin-78.6.1:0/esr78"
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</code>
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<p>All Firefox 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 ">=www-client/firefox-84.0.2"
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</code>
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<p>All Firefox binary 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 ">=www-client/firefox-bin-84.0.2"
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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-2020-16044">CVE-2020-16044</uri>
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<uri link="https://www.mozilla.org/en-US/security/advisories/mfsa2021-01/">
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MFSA-2021-01
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</uri>
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</references>
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<metadata tag="requester" timestamp="2021-01-09T16:49:31Z">sam_c</metadata>
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<metadata tag="submitter" timestamp="2021-01-10T09:20:31Z">sam_c</metadata>
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</glsa>
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