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Red Hat Enterprise Linux: RHSA-2020-0086-01 Critical: Firefox Security Flaw

red hat
Calendar Grey January 13, 2020
Dist Redhat Esm H88
A vital security patch for Chrome has been issued by Red Hat for users of Red Hat Enterprise Linux. Update immediately to protect your system!
An update for firefox is now available for Red Hat Enterprise Linux 6

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 68.4.1 ESR.
Security Fix(es):
* Mozilla: IonMonkey type confusion with StoreElementHole and FallibleStoreElement (CVE-2019-17026)
* Mozilla: Bypass of @namespace CSS sanitization during pasting (CVE-2019-17016)
* Mozilla: Type Confusion in XPCVariant.cpp (CVE-2019-17017)
* Mozilla: Memory safety bugs fixed in Firefox 72 and Firefox ESR 68.4 (CVE-2019-17024)
* Mozilla: CSS sanitization does not escape HTML tags (CVE-2019-17022)
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 security update security issue critical firefox red hat enterprise linux

References

https://access.redhat.com/security/cve/CVE-2019-17016 https://access.redhat.com/security/cve/CVE-2019-17017 https://access.redhat.com/security/cve/CVE-2019-17022 https://access.redhat.com/security/cve/CVE-2019-17024 https://access.redhat.com/security/cve/CVE-2019-17026 https://access.redhat.com/security/updates/classification#critical https://www.mozilla.org/en-US/security/advisories/mfsa2020-02/

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source: firefox-68.4.1-1.el6_10.src.rpm
i386: firefox-68.4.1-1.el6_10.i686.rpm firefox-debuginfo-68.4.1-1.el6_10.i686.rpm
x86_64: firefox-68.4.1-1.el6_10.x86_64.rpm firefox-debuginfo-68.4.1-1.el6_10.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
x86_64: firefox-68.4.1-1.el6_10.i686.rpm firefox-debuginfo-68.4.1-1.el6_10.i686.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
Source: firefox-68.4.1-1.el6_10.src.rpm
x86_64: firefox-68.4.1-1.el6_10.i686.rpm firefox-68.4.1-1.el6_10.x86_64.rpm firefox-debuginfo-68.4.1-1.el6_10.i686.rpm firefox-debuginfo-68.4.1-1.el6_10.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source: firefox-68.4.1-1.el6_10.src.rpm
i386: firefox-68.4.1-1.el6_10.i686.rpm firefox-debuginfo-68.4.1-1.el6_10.i686.rpm
ppc64: firefox-68.4.1-1.el6_10.ppc64.rpm firefox-debuginfo-68.4.1-1.el6_10.ppc64.rpm
s390x: firefox-68.4.1-1.el6_10.s390x.rpm firefox-debuginfo-68.4.1-1.el6_10.s390x.rpm
x86_64: firefox-68.4.1-1.el6_10.x86_64.rpm firefox-debuginfo-68.4.1-1.el6_10.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 6):
x86_64: firefox-68.4.1-1.el6_10.i686.rpm firefox-debuginfo-68.4.1-1.el6_10.i686.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source: firefox-68.4.1-1.el6_10.src.rpm
i386:

Read the Full Advisory


Severity
critical
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:0086-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:0086
Issue date: 2020-01-13

Topic

An update for firefox is now available for Red Hat Enterprise Linux 6.Red Hat Product Security has rated this update as having a security impactof Critical. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory security update security issue critical firefox red hat enterprise linux

Relevant Releases Architectures

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64

Red Hat Enterprise Linux Desktop Optional (v. 6) - x86_64

Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 6) - x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 6) - x86_64

Bugs Fixed

1788723 - CVE-2019-17016 Mozilla: Bypass of @namespace CSS sanitization during pasting

1788724 - CVE-2019-17017 Mozilla: Type Confusion in XPCVariant.cpp

1788726 - CVE-2019-17022 Mozilla: CSS sanitization does not escape HTML tags

1788727 - CVE-2019-17024 Mozilla: Memory safety bugs fixed in Firefox 72 and Firefox ESR 68.4

1789214 - CVE-2019-17026 Mozilla: IonMonkey type confusion with StoreElementHole and FallibleStoreElement

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