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Red Hat Security Advisory 2020-0111-01

Red Hat Security Advisory 2020-0111-01
Posted Jan 15, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-0111-01 - 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. Issues addressed include a bypass vulnerability.

tags | advisory, web, bypass
systems | linux, redhat
advisories | CVE-2019-17016, CVE-2019-17017, CVE-2019-17022, CVE-2019-17024, CVE-2019-17026
SHA-256 | 28c1d851054c5383bbe63ee7bb1b8b2fdbc55c214c08cdf429a2dbad5bf9a2e1

Red Hat Security Advisory 2020-0111-01

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====================================================================
Red Hat Security Advisory

Synopsis: Critical: firefox security update
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
CVE Names: CVE-2019-17016 CVE-2019-17017 CVE-2019-17022
CVE-2019-17024 CVE-2019-17026
====================================================================
1. Summary:

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 impact
of Critical. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) in the References section.

2. Relevant releases/architectures:

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

3. Description:

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.

4. 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.

5. Bugs fixed (https://bugzilla.redhat.com/):

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

6. 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/

7. 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/

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2020 Red Hat, Inc.
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