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RedHat Enterprise Linux 8: RHSA-2020-0111 Critical: Firefox Security Fix

red hat
Calendar Grey January 14, 2020
Dist Redhat Esm H88
An enhancement for Firefox on Red Hat Enterprise Linux 8 resolves significant security vulnerabilities and boosts web browser protection.
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 68.4.1 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 Red Hat Enterprise Linux critical security firefox update Mozilla browser

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 AppStream (v. 8):
Source: firefox-68.4.1-1.el8_1.src.rpm
aarch64: firefox-68.4.1-1.el8_1.aarch64.rpm firefox-debuginfo-68.4.1-1.el8_1.aarch64.rpm firefox-debugsource-68.4.1-1.el8_1.aarch64.rpm
ppc64le: firefox-68.4.1-1.el8_1.ppc64le.rpm firefox-debuginfo-68.4.1-1.el8_1.ppc64le.rpm firefox-debugsource-68.4.1-1.el8_1.ppc64le.rpm
s390x: firefox-68.4.1-1.el8_1.s390x.rpm firefox-debuginfo-68.4.1-1.el8_1.s390x.rpm firefox-debugsource-68.4.1-1.el8_1.s390x.rpm
x86_64: firefox-68.4.1-1.el8_1.x86_64.rpm firefox-debuginfo-68.4.1-1.el8_1.x86_64.rpm firefox-debugsource-68.4.1-1.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
critical
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:0111-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:0111
Issue date: 2020-01-14

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 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 Red Hat Enterprise Linux critical security firefox update Mozilla browser

Relevant Releases Architectures

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