84 lines
2.8 KiB
XML
84 lines
2.8 KiB
XML
<?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="202011-07">
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<title>Mozilla Firefox: Remote code execution</title>
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<synopsis>A use-after-free in Mozilla Firefox might allow remote attacker(s)
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to execute arbitrary code.
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</synopsis>
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<product type="ebuild">firefox</product>
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<announced>2020-11-11</announced>
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<revised count="1">2020-11-11</revised>
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<bug>753773</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">82.0.3</unaffected>
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<unaffected range="ge" slot="0/esr78">78.4.1</unaffected>
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<vulnerable range="lt">82.0.3</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">82.0.3</unaffected>
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<unaffected range="ge" slot="0/esr78">78.4.1</unaffected>
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<vulnerable range="lt">78.4.1</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>Invalid assumptions when emitting the the MCallGetProperty opcode in the
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JavaScript JIT may result in a use-after-free condition.
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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 Mozilla 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-82.0.3"
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</code>
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<p>All Mozilla Firefox (bin) 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-78.4.1:0/esr78"
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</code>
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<p>All Mozilla 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 ">=www-client/firefox-82.0.3"
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</code>
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<p>All Mozilla Firefox (ESR) bin users should upgrade to the latest
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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
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">=www-client/firefox-bin-78.4.1:0/esr78"
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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-2020-26950">CVE-2020-26950</uri>
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<uri link="https://www.mozilla.org/en-US/security/advisories/mfsa2020-49/">
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MFSA-2020-49
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</uri>
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</references>
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<metadata tag="requester" timestamp="2020-11-09T20:03:19Z">sam_c</metadata>
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<metadata tag="submitter" timestamp="2020-11-11T03:36:43Z">sam_c</metadata>
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</glsa>
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