Red Hat Security Advisory 2019-0623-01

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Red Hat Security Advisory

Synopsis: Critical: firefox security update
Advisory ID: RHSA-2019:0623-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:0623
Issue date: 2019-03-20
CVE Names: CVE-2018-18506 CVE-2019-9788 CVE-2019-9790
CVE-2019-9791 CVE-2019-9792 CVE-2019-9793
CVE-2019-9795 CVE-2019-9796
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1. Summary:

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 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 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

3. Description:

Mozilla Firefox is an open-source web browser, designed for standards
compliance, performance, and portability.

This update upgrades Firefox to version 60.6.0 ESR.

Security Fix(es):

* Mozilla: Memory safety bugs fixed in Firefox 66 and Firefox ESR 60.6
(CVE-2019-9788)

* Mozilla: Use-after-free when removing in-use DOM elements (CVE-2019-9790)

* Mozilla: Type inference is incorrect for constructors entered through
on-stack replacement with IonMonkey (CVE-2019-9791)

* Mozilla: IonMonkey leaks JS_OPTIMIZED_OUT magic value to script
(CVE-2019-9792)

* Mozilla: Improper bounds checks when Spectre mitigations are disabled
(CVE-2019-9793)

* Mozilla: Type-confusion in IonMonkey JIT compiler (CVE-2019-9795)

* Mozilla: Use-after-free with SMIL animation controller (CVE-2019-9796)

* Mozilla: Proxy Auto-Configuration file can define localhost access to be
proxied (CVE-2018-18506)

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/):

1690673 – CVE-2018-18506 Mozilla: Proxy Auto-Configuration file can define localhost access to be proxied
1690674 – CVE-2019-9788 Mozilla: Memory safety bugs fixed in Firefox 66 and Firefox ESR 60.6
1690675 – CVE-2019-9790 Mozilla: Use-after-free when removing in-use DOM elements
1690676 – CVE-2019-9791 Mozilla: Type inference is incorrect for constructors entered through on-stack replacement with IonMonkey
1690677 – CVE-2019-9792 Mozilla: IonMonkey leaks JS_OPTIMIZED_OUT magic value to script
1690678 – CVE-2019-9793 Mozilla: Improper bounds checks when Spectre mitigations are disabled
1690680 – CVE-2019-9795 Mozilla: Type-confusion in IonMonkey JIT compiler
1690681 – CVE-2019-9796 Mozilla: Use-after-free with SMIL animation controller

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:
firefox-60.6.0-3.el6_10.src.rpm

i386:
firefox-60.6.0-3.el6_10.i686.rpm
firefox-debuginfo-60.6.0-3.el6_10.i686.rpm

x86_64:
firefox-60.6.0-3.el6_10.x86_64.rpm
firefox-debuginfo-60.6.0-3.el6_10.x86_64.rpm

Red Hat Enterprise Linux Desktop Optional (v. 6):

x86_64:
firefox-60.6.0-3.el6_10.i686.rpm
firefox-debuginfo-60.6.0-3.el6_10.i686.rpm

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

Source:
firefox-60.6.0-3.el6_10.src.rpm

x86_64:
firefox-60.6.0-3.el6_10.i686.rpm
firefox-60.6.0-3.el6_10.x86_64.rpm
firefox-debuginfo-60.6.0-3.el6_10.i686.rpm
firefox-debuginfo-60.6.0-3.el6_10.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
firefox-60.6.0-3.el6_10.src.rpm

i386:
firefox-60.6.0-3.el6_10.i686.rpm
firefox-debuginfo-60.6.0-3.el6_10.i686.rpm

ppc64:
firefox-60.6.0-3.el6_10.ppc64.rpm
firefox-debuginfo-60.6.0-3.el6_10.ppc64.rpm

s390x:
firefox-60.6.0-3.el6_10.s390x.rpm
firefox-debuginfo-60.6.0-3.el6_10.s390x.rpm

x86_64:
firefox-60.6.0-3.el6_10.x86_64.rpm
firefox-debuginfo-60.6.0-3.el6_10.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 6):

x86_64:
firefox-60.6.0-3.el6_10.i686.rpm
firefox-debuginfo-60.6.0-3.el6_10.i686.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
firefox-60.6.0-3.el6_10.src.rpm

i386:
firefox-60.6.0-3.el6_10.i686.rpm
firefox-debuginfo-60.6.0-3.el6_10.i686.rpm

x86_64:
firefox-60.6.0-3.el6_10.x86_64.rpm
firefox-debuginfo-60.6.0-3.el6_10.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 6):

x86_64:
firefox-60.6.0-3.el6_10.i686.rpm
firefox-debuginfo-60.6.0-3.el6_10.i686.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-2018-18506
https://access.redhat.com/security/cve/CVE-2019-9788
https://access.redhat.com/security/cve/CVE-2019-9790
https://access.redhat.com/security/cve/CVE-2019-9791
https://access.redhat.com/security/cve/CVE-2019-9792
https://access.redhat.com/security/cve/CVE-2019-9793
https://access.redhat.com/security/cve/CVE-2019-9795
https://access.redhat.com/security/cve/CVE-2019-9796
https://access.redhat.com/security/updates/classification/#critical
https://www.mozilla.org/en-US/security/advisories/mfsa2019-08/

8. Contact:

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

Copyright 2019 Red Hat, Inc.
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