Important CentOS firefox Security Update


firefox-38.1.1-1.el5.centos.i386.rpm, firefox-38.1.1-1.el5.centos.src.rpm, firefox-38.1.1-1.el5.centos.x86_64.rpm, firefox-38.1.1-1.el6.centos.i686.rpm, firefox-38.1.1-1.el6.centos.src.rpm, firefox-38.1.1-1.el6.centos.x86_64.rpm, firefox-38.1.1-1.el7.centos.i686.rpm, firefox-38.1.1-1.el7.centos.src.rpm, firefox-38.1.1-1.el7.centos.x86_64.rpm,,,
2018-01-18 11:10
2017-07-27 19:09
2017-04-01 19:09
2017-01-05 20:13


Updated firefox packages that fix one security issue are now available for
Red Hat Enterprise Linux 5, 6, and 7.

Red Hat Product Security has rated this update as having Important security
impact. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available from the CVE link in the
References section.

Mozilla Firefox is an open source web browser. XULRunner provides the XUL
Runtime environment for Mozilla Firefox.

A flaw was discovered in Mozilla Firefox that could be used to violate the
same-origin policy and inject web script into a non-privileged part of the
built-in PDF file viewer (PDF.js). An attacker could create a malicious web
page that, when viewed by a victim, could steal arbitrary files (including
private SSH keys, the /etc/passwd file, and other potentially sensitive
files) from the system running Firefox. (CVE-2015-4495)

Red Hat would like to thank the Mozilla project for reporting this issue.
Upstream acknowledges Cody Crews as the original reporter.

All Firefox users should upgrade to these updated packages, which contain
Firefox version 38.1.1 ESR, which corrects this issue. After installing the
update, Firefox must be restarted for the changes to take effect.
Please see

Am I vulnerable?

The constraints below list the versions that this vulnerability is patched in, and versions that are unaffected. If a patch is ready but unrealeased, then it is pending.

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Affected package information

Release Package Patched in
5 firefox firefox-38.1.1-1.el5.centos.i386.rpm
firefox firefox-38.1.1-1.el5.centos.src.rpm
firefox firefox-38.1.1-1.el5.centos.x86_64.rpm
6 firefox firefox-38.1.1-1.el6.centos.i686.rpm
firefox firefox-38.1.1-1.el6.centos.src.rpm
firefox firefox-38.1.1-1.el6.centos.x86_64.rpm
7 firefox firefox-38.1.1-1.el7.centos.i686.rpm
firefox firefox-38.1.1-1.el7.centos.src.rpm
firefox firefox-38.1.1-1.el7.centos.x86_64.rpm