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=====================================================================<br>
Red Hat Security Advisory<br>
<br>
Synopsis: Critical: firefox security update<br>
Advisory ID: RHSA-2020:5135-01<br>
Product: Red Hat Enterprise Linux<br>
Advisory URL: <a href="https://access.redhat.com/errata/RHSA-2020:5135" rel="noreferrer" target="_blank">https://access.redhat.com/errata/RHSA-2020:5135</a><br>
Issue date: 2020-11-17<br>
CVE Names: CVE-2020-26950 <br>
=====================================================================<br>
<br>
1. Summary:<br>
<br>
An update for firefox is now available for Red Hat Enterprise Linux 8.1<br>
Extended Update Support.<br>
<br>
Red Hat Product Security has rated this update as having a security impact<br>
of Critical. A Common Vulnerability Scoring System (CVSS) base score, which<br>
gives a detailed severity rating, is available for each vulnerability from<br>
the CVE link(s) in the References section.<br>
<br>
2. Relevant releases/architectures:<br>
<br>
Red Hat Enterprise Linux AppStream EUS (v. 8.1) - aarch64, ppc64le, s390x, x86_64<br>
<br>
3. Description:<br>
<br>
Mozilla Firefox is an open-source web browser, designed for standards<br>
compliance, performance, and portability.<br>
<br>
This update upgrades Firefox to version 78.4.1 ESR.<br>
<br>
Security Fix(es):<br>
<br>
* Mozilla: Write side effects in MCallGetProperty opcode not accounted for<br>
(CVE-2020-26950)<br>
<br>
For more details about the security issue(s), including the impact, a CVSS<br>
score, acknowledgments, and other related information, refer to the CVE<br>
page(s) listed in the References section.<br>
<br>
4. Solution:<br>
<br>
For details on how to apply this update, which includes the changes<br>
described in this advisory, refer to:<br>
<br>
<a href="https://access.redhat.com/articles/11258" rel="noreferrer" target="_blank">https://access.redhat.com/articles/11258</a><br>
<br>
After installing the update, Firefox must be restarted for the changes to<br>
take effect.<br>
<br>
5. Bugs fixed (<a href="https://bugzilla.redhat.com/" rel="noreferrer" target="_blank">https://bugzilla.redhat.com/</a>):<br>
<br>
1896306 - CVE-2020-26950 Mozilla: Write side effects in MCallGetProperty opcode not accounted for<br>
<br>
6. Package List:<br>
<br>
Red Hat Enterprise Linux AppStream EUS (v. 8.1):<br>
<br>
Source:<br>
firefox-78.4.1-1.el8_1.src.rpm<br>
<br>
aarch64:<br>
firefox-78.4.1-1.el8_1.aarch64.rpm<br>
firefox-debuginfo-78.4.1-1.el8_1.aarch64.rpm<br>
firefox-debugsource-78.4.1-1.el8_1.aarch64.rpm<br>
<br>
ppc64le:<br>
firefox-78.4.1-1.el8_1.ppc64le.rpm<br>
firefox-debuginfo-78.4.1-1.el8_1.ppc64le.rpm<br>
firefox-debugsource-78.4.1-1.el8_1.ppc64le.rpm<br>
<br>
s390x:<br>
firefox-78.4.1-1.el8_1.s390x.rpm<br>
firefox-debuginfo-78.4.1-1.el8_1.s390x.rpm<br>
firefox-debugsource-78.4.1-1.el8_1.s390x.rpm<br>
<br>
x86_64:<br>
firefox-78.4.1-1.el8_1.x86_64.rpm<br>
firefox-debuginfo-78.4.1-1.el8_1.x86_64.rpm<br>
firefox-debugsource-78.4.1-1.el8_1.x86_64.rpm<br>
<br>
These packages are GPG signed by Red Hat for security. Our key and<br>
details on how to verify the signature are available from<br>
<a href="https://access.redhat.com/security/team/key/" rel="noreferrer" target="_blank">https://access.redhat.com/security/team/key/</a><br>
<br>
7. References:<br>
<br>
<a href="https://access.redhat.com/security/cve/CVE-2020-26950" rel="noreferrer" target="_blank">https://access.redhat.com/security/cve/CVE-2020-26950</a><br>
<a href="https://access.redhat.com/security/updates/classification/#critical" rel="noreferrer" target="_blank">https://access.redhat.com/security/updates/classification/#critical</a><br>
<br>
8. Contact:<br>
<br>
The Red Hat security contact is <<a href="mailto:secalert@redhat.com" target="_blank">secalert@redhat.com</a>>. More contact<br>
details at <a href="https://access.redhat.com/security/team/contact/" rel="noreferrer" target="_blank">https://access.redhat.com/security/team/contact/</a><br>
<br>
Copyright 2020 Red Hat, Inc.<br>
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</div><div class="gmail_quote"><br clear="all"><div><div dir="ltr" class="gmail_signature"><div dir="ltr"><div>===</div><div>Computer Security Incident Response Team - CSIRT</div><div>Universidade Estadual de Campinas - Unicamp</div><div>Centro de Computacao - CCUEC</div><div>GnuPG Public Key: <a href="http://www.security.unicamp.br/security.asc" target="_blank">http://www.security.unicamp.br/security.asc</a> [^]</div><div>Contato: +55 19 3521-2289 ou INOC-DBA: 1251*830</div></div></div></div>
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