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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202101-04">
<title>Mozilla Firefox: Remote code execution</title>
<synopsis>A use-after-free in Mozilla Firefox's SCTP handling may allow
remote code execution.
</synopsis>
<product type="ebuild">firefox,thunderbird</product>
<announced>2021-01-10</announced>
<revised count="1">2021-01-10</revised>
<bug>764161</bug>
<access>remote</access>
<affected>
<package name="www-client/firefox" auto="yes" arch="*">
<unaffected range="ge" slot="0/esr78">78.6.1</unaffected>
<unaffected range="ge">84.0.2</unaffected>
<vulnerable range="lt">84.0.2</vulnerable>
</package>
<package name="www-client/firefox-bin" auto="yes" arch="*">
<unaffected range="ge" slot="0/esr78">78.6.1</unaffected>
<unaffected range="ge">84.0.2</unaffected>
<vulnerable range="lt">84.0.2</vulnerable>
</package>
</affected>
<background>
<p>Mozilla Firefox is a popular open-source web browser from the Mozilla
project.
</p>
</background>
<description>
<p>A use-after-free bug was discovered in Mozilla Firefox’s handling of
SCTP.
</p>
</description>
<impact type="normal">
<p>A remote attacker could possibly execute arbitrary code with the
privileges of the process, or cause a Denial of Service condition.
</p>
</impact>
<workaround>
<p>There is no known workaround at this time.</p>
</workaround>
<resolution>
<p>All Firefox ESR users should upgrade to the latest version:</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose
">=www-client/firefox-78.6.1:0/esr78"
</code>
<p>All Firefox ESR binary users should upgrade to the latest version:</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose
">=www-client/firefox-bin-78.6.1:0/esr78"
</code>
<p>All Firefox users should upgrade to the latest version:</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose ">=www-client/firefox-84.0.2"
</code>
<p>All Firefox binary users should upgrade to the latest version:</p>
<code>
# emerge --sync
# emerge --ask --oneshot --verbose ">=www-client/firefox-bin-84.0.2"
</code>
</resolution>
<references>
<uri link="https://nvd.nist.gov/vuln/detail/CVE-2020-16044">CVE-2020-16044</uri>
<uri link="https://www.mozilla.org/en-US/security/advisories/mfsa2021-01/">
MFSA-2021-01
</uri>
</references>
<metadata tag="requester" timestamp="2021-01-09T16:49:31Z">sam_c</metadata>
<metadata tag="submitter" timestamp="2021-01-10T09:20:31Z">sam_c</metadata>
</glsa>
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