[RHSA-2018:2881-01] Critical: firefox security update

Mon Oct 8 08:27:12 UTC 2018

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 60.2.2 ESR.

Security Fix(es):

* Mozilla: type confusion in JavaScript (CVE-2018-12386)

* Mozilla: stack out-of-bounds read in Array.prototype.push
(CVE-2018-12387)

For more details about the security issue(s), including the impact, a CVSS
score, and other related information, refer to the CVE page(s) listed in
the References section.

Red Hat would like to thank the Mozilla project for reporting these issues.
The upstream acknowledges Niklas Baumstark, Samuel Groß, and Bruno Keith as
the original reporters, via Beyond Security's SecuriTeam Secure Disclosure
program.

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/):

1635451 - CVE-2018-12386 Mozilla: type confusion in JavaScript
1635452 - CVE-2018-12387 Mozilla: stack out-of-bounds read in Array.prototype.push

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:
firefox-60.2.2-1.el6.src.rpm

i386:
firefox-60.2.2-1.el6.i686.rpm
firefox-debuginfo-60.2.2-1.el6.i686.rpm

x86_64:
firefox-60.2.2-1.el6.x86_64.rpm
firefox-debuginfo-60.2.2-1.el6.x86_64.rpm

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

x86_64:
firefox-60.2.2-1.el6.i686.rpm
firefox-debuginfo-60.2.2-1.el6.i686.rpm

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

Source:
firefox-60.2.2-1.el6.src.rpm

x86_64:
firefox-60.2.2-1.el6.i686.rpm
firefox-60.2.2-1.el6.x86_64.rpm
firefox-debuginfo-60.2.2-1.el6.i686.rpm
firefox-debuginfo-60.2.2-1.el6.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
firefox-60.2.2-1.el6.src.rpm

i386:
firefox-60.2.2-1.el6.i686.rpm
firefox-debuginfo-60.2.2-1.el6.i686.rpm

ppc64:
firefox-60.2.2-1.el6.ppc64.rpm
firefox-debuginfo-60.2.2-1.el6.ppc64.rpm

s390x:
firefox-60.2.2-1.el6.s390x.rpm
firefox-debuginfo-60.2.2-1.el6.s390x.rpm

x86_64:
firefox-60.2.2-1.el6.x86_64.rpm
firefox-debuginfo-60.2.2-1.el6.x86_64.rpm

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

x86_64:
firefox-60.2.2-1.el6.i686.rpm
firefox-debuginfo-60.2.2-1.el6.i686.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
firefox-60.2.2-1.el6.src.rpm

i386:
firefox-60.2.2-1.el6.i686.rpm
firefox-debuginfo-60.2.2-1.el6.i686.rpm

x86_64:
firefox-60.2.2-1.el6.x86_64.rpm
firefox-debuginfo-60.2.2-1.el6.x86_64.rpm

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

x86_64:
firefox-60.2.2-1.el6.i686.rpm
firefox-debuginfo-60.2.2-1.el6.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-2018-12386
https://access.redhat.com/security/cve/CVE-2018-12387
https://access.redhat.com/security/updates/classification/#critical
https://www.mozilla.org/en-US/security/advisories/mfsa2018-24/

8. Contact:

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

Copyright 2018 Red Hat, Inc.
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