Overly broad permissions can turn one compromised account into a much larger security problem. Learn how to reduce unnecessary access, review privileges, and apply least privilege across modern Linux systems. Review Linux Privileges×

Alerts This Week
Warning Icon 1 544
Alerts This Week
Warning Icon 1 544

Red Hat Enterprise Linux: RHSA-2016-2843-01 Critical: Firefox RCE

red hat
Calendar Grey December 1, 2016
Scroller Redhat
Firefox's latest security update addresses critical vulnerabilities that may risk user data on Red Hat and Linux. Apply this essential patch to protect against threats
An update for firefox is now available for Red Hat Enterprise Linux 5, 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 45.5.1 ESR.
Security Fix(es):
* A flaw was 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-2016-9079)
Red Hat would like to thank the Mozilla project for reporting this issue.

Topics%20covered

Topics Covered

security advisory security update critical remote code execution Red Hat Enterprise Linux firefox

References

https://access.redhat.com/security/cve/CVE-2016-9079 https://access.redhat.com/security/updates/classification/#critical https://www.mozilla.org/en-US/security/advisories/mfsa2016-92/#CVE-2016-9079

Package List

Red Hat Enterprise Linux Desktop (v. 5 client):
Source: firefox-45.5.1-1.el5_11.src.rpm
i386: firefox-45.5.1-1.el5_11.i386.rpm firefox-debuginfo-45.5.1-1.el5_11.i386.rpm
x86_64: firefox-45.5.1-1.el5_11.i386.rpm firefox-45.5.1-1.el5_11.x86_64.rpm firefox-debuginfo-45.5.1-1.el5_11.i386.rpm firefox-debuginfo-45.5.1-1.el5_11.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source: firefox-45.5.1-1.el5_11.src.rpm
i386: firefox-45.5.1-1.el5_11.i386.rpm firefox-debuginfo-45.5.1-1.el5_11.i386.rpm
ppc: firefox-45.5.1-1.el5_11.ppc64.rpm firefox-debuginfo-45.5.1-1.el5_11.ppc64.rpm
s390x: firefox-45.5.1-1.el5_11.s390.rpm firefox-45.5.1-1.el5_11.s390x.rpm firefox-debuginfo-45.5.1-1.el5_11.s390.rpm firefox-debuginfo-45.5.1-1.el5_11.s390x.rpm
x86_64: firefox-45.5.1-1.el5_11.i386.rpm firefox-45.5.1-1.el5_11.x86_64.rpm firefox-debuginfo-45.5.1-1.el5_11.i386.rpm firefox-debuginfo-45.5.1-1.el5_11.x86_64.rpm
Red Hat Enterprise Linux Desktop (v. 6):
Source: firefox-45.5.1-1.el6_8.src.rpm
i386: firefox-45.5.1-1.el6_8.i686.rpm firefox-debuginfo-45.5.1-1.el6_8.i686.rpm
x86_64: firefox-45.5.1-1.el6_8.x86_64.rpm firefox-debuginfo-45.5.1-1.el6_8.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
x86_64: firefox-45.5.1-1.el6_8.i686.rpm firefox-debuginfo-45.5.1-1.el6_8.i686.rpm


Read the Full Advisory


Severity
critical
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2016:2843-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2016:2843.html
Issue date: 2016-12-01

Topic

An update for firefox is now available for Red Hat Enterprise Linux 5, RedHat Enterprise Linux 6, and Red 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 security update critical remote code execution Red Hat Enterprise Linux firefox

Relevant Releases Architectures

Red Hat Enterprise Linux (v. 5 server) - i386, ppc, s390x, x86_64

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. 5 client) - i386, 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) - aarch64, 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

Bugs Fixed

1400376 - CVE-2016-9079 Mozilla: Firefox SVG Animation Remote Code Execution (MFSA 2016-92)

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.