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Red Hat Enterprise Linux 8: RHSA-2020:0512-01 Important: Firefox Risks

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Calendar Grey February 17, 2020
Scroller Redhat
Essential Firefox patch for Red Hat Enterprise Linux 8 tackles significant vulnerabilities and enhances user safety in browsing.
An update for firefox is now available for Red Hat Enterprise Linux 8

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

After installing the update, Firefox must be restarted for the changes to take effect.

Summary

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.
This update upgrades Firefox to version 68.5.0 ESR.
Security Fix(es):
* Mozilla: Missing bounds check on shared memory read in the parent process (CVE-2020-6796)
* Mozilla: Memory safety bugs fixed in Firefox 73 and Firefox ESR 68.5 (CVE-2020-6800)
* Mozilla: Incorrect parsing of template tag could result in JavaScript injection (CVE-2020-6798)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Topics%20covered

Topics Covered

security advisory update Red Hat Enterprise Linux firefox memory safety JavaScript injection

References

https://access.redhat.com/security/cve/CVE-2020-6796 https://access.redhat.com/security/cve/CVE-2020-6798 https://access.redhat.com/security/cve/CVE-2020-6800 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: firefox-68.5.0-2.el8_1.src.rpm
aarch64: firefox-68.5.0-2.el8_1.aarch64.rpm firefox-debuginfo-68.5.0-2.el8_1.aarch64.rpm firefox-debugsource-68.5.0-2.el8_1.aarch64.rpm
ppc64le: firefox-68.5.0-2.el8_1.ppc64le.rpm firefox-debuginfo-68.5.0-2.el8_1.ppc64le.rpm firefox-debugsource-68.5.0-2.el8_1.ppc64le.rpm
s390x: firefox-68.5.0-2.el8_1.s390x.rpm firefox-debuginfo-68.5.0-2.el8_1.s390x.rpm firefox-debugsource-68.5.0-2.el8_1.s390x.rpm
x86_64: firefox-68.5.0-2.el8_1.x86_64.rpm firefox-debuginfo-68.5.0-2.el8_1.x86_64.rpm firefox-debugsource-68.5.0-2.el8_1.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:0512-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:0512
Issue date: 2020-02-17

Topic

An update for firefox is now available for Red Hat Enterprise Linux 8.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory update Red Hat Enterprise Linux firefox memory safety JavaScript injection

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

1801916 - CVE-2020-6796 Mozilla: Missing bounds check on shared memory read in the parent process

1801918 - CVE-2020-6798 Mozilla: Incorrect parsing of template tag could result in JavaScript injection

1801920 - CVE-2020-6800 Mozilla: Memory safety bugs fixed in Firefox 73 and Firefox ESR 68.5

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