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Red Hat: RHSA-2017-3247-01 Critical: Firefox Security Update

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Calendar Grey November 17, 2017
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Essential Firefox patch for Red Hat Enterprise Linux tackles various vulnerabilities and enhances user safety during web navigation.
An update for firefox is now available for Red Hat Enterprise Linux 6 and Red Hat Enterprise Linux 7

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.
This update upgrades Firefox to version 52.5.0 ESR.
Security Fix(es):
* Multiple flaws were found in the processing of malformed web content. A web page containing malicious content could cause Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running Firefox. (CVE-2017-7826, CVE-2017-7828, CVE-2017-7830)
Red Hat would like to thank the Mozilla project for reporting these issues. Upstream acknowledges Christian Holler, David Keeler, Jon Coppeard, Julien Cristau, Jan de Mooij, Jason Kratzer, Philipp, Nicholas Nethercote, Oriol Brufau, André Bargull, Bob Clary, Jet Villegas, Randell Jesup, Tyson Smith, Gary Kwong, Ryan VanderMeulen, Nils, and Jun Kokatsu as the original reporters.

Topics%20covered

Topics Covered

security advisory Red Hat update critical security fix firefox malicious content

References

https://access.redhat.com/security/cve/CVE-2017-7826 https://access.redhat.com/security/cve/CVE-2017-7828 https://access.redhat.com/security/cve/CVE-2017-7830 https://access.redhat.com/security/updates/classification/#critical https://www.mozilla.org/en-US/security/advisories/mfsa2017-25/

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source: firefox-52.5.0-1.el6_9.src.rpm
i386: firefox-52.5.0-1.el6_9.i686.rpm firefox-debuginfo-52.5.0-1.el6_9.i686.rpm
x86_64: firefox-52.5.0-1.el6_9.x86_64.rpm firefox-debuginfo-52.5.0-1.el6_9.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
x86_64: firefox-52.5.0-1.el6_9.i686.rpm firefox-debuginfo-52.5.0-1.el6_9.i686.rpm
Red Hat Enterprise Linux HPC Node Optional (v. 6):
Source: firefox-52.5.0-1.el6_9.src.rpm
x86_64: firefox-52.5.0-1.el6_9.i686.rpm firefox-52.5.0-1.el6_9.x86_64.rpm firefox-debuginfo-52.5.0-1.el6_9.i686.rpm firefox-debuginfo-52.5.0-1.el6_9.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source: firefox-52.5.0-1.el6_9.src.rpm
i386: firefox-52.5.0-1.el6_9.i686.rpm firefox-debuginfo-52.5.0-1.el6_9.i686.rpm
ppc64: firefox-52.5.0-1.el6_9.ppc64.rpm firefox-debuginfo-52.5.0-1.el6_9.ppc64.rpm
s390x: firefox-52.5.0-1.el6_9.s390x.rpm firefox-debuginfo-52.5.0-1.el6_9.s390x.rpm
x86_64: firefox-52.5.0-1.el6_9.x86_64.rpm firefox-debuginfo-52.5.0-1.el6_9.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 6):
ppc64: firefox-52.5.0-1.el6_9.ppc.rpm firefox-debuginfo-52.5.0-1.el6_9.ppc.rpm
s390x: firefox-52.5.0-1.el6_9.s390.rpm firefox-debuginfo-52.5.0-1.el6_9.s390.rpm
x86_64: firefox-52.5.0-1.el6_9.i686.rpm

Read the Full Advisory


Severity
critical
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2017:3247-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2017:3247
Issue date: 2017-11-17

Topic

An update for firefox is now available for Red Hat Enterprise Linux 6 andRed Hat Enterprise Linux 7.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 update critical security fix firefox malicious content

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

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 (v. 7) - ppc64, ppc64le, s390x, x86_64

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

Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, s390x, x86_64

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

Red Hat Enterprise Linux Workstation (v. 7) - x86_64

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

Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, ppc64le

Bugs Fixed

1513308 - CVE-2017-7826 Mozilla: Memory safety bugs fixed in Firefox 57 and Firefox ESR 52.5 (MFSA 2017-25)

1513310 - CVE-2017-7828 Mozilla: Use-after-free of PressShell while restyling layout (MFSA 2017-25)

1513311 - CVE-2017-7830 Mozilla: Cross-origin URL information leak through Resource Timing API (MFSA 2017-25)

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