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Red Hat: 2015:1581-01 Important: Firefox Local File Theft

red hat
Calendar Grey August 7, 2015
Dist Redhat Esm H88
Canonical has issued significant patches for Chromium on Ubuntu Server, tackling a major vulnerability.
Updated firefox packages that fix one security issue are now available for Red Hat Enterprise Linux 5, 6, and 7

Solution

Before applying this update, make sure all previously released errata relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Summary

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.

Topics%20covered

Topics Covered

security advisory update red hat important security patch firefox local file theft

References

https://access.redhat.com/security/cve/CVE-2015-4495 https://access.redhat.com/security/updates/classification#important https://www.mozilla.org/en-US/security/known-vulnerabilities/firefox-esr/#firefoxesr38.1.1 https://access.redhat.com/articles/1563163

Package List

Red Hat Enterprise Linux Desktop (v. 5 client):
Source: firefox-38.1.1-1.el5_11.src.rpm
i386: firefox-38.1.1-1.el5_11.i386.rpm firefox-debuginfo-38.1.1-1.el5_11.i386.rpm
x86_64: firefox-38.1.1-1.el5_11.i386.rpm firefox-38.1.1-1.el5_11.x86_64.rpm firefox-debuginfo-38.1.1-1.el5_11.i386.rpm firefox-debuginfo-38.1.1-1.el5_11.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source: firefox-38.1.1-1.el5_11.src.rpm
i386: firefox-38.1.1-1.el5_11.i386.rpm firefox-debuginfo-38.1.1-1.el5_11.i386.rpm
ppc: firefox-38.1.1-1.el5_11.ppc64.rpm firefox-debuginfo-38.1.1-1.el5_11.ppc64.rpm
s390x: firefox-38.1.1-1.el5_11.s390.rpm firefox-38.1.1-1.el5_11.s390x.rpm firefox-debuginfo-38.1.1-1.el5_11.s390.rpm firefox-debuginfo-38.1.1-1.el5_11.s390x.rpm
x86_64: firefox-38.1.1-1.el5_11.i386.rpm firefox-38.1.1-1.el5_11.x86_64.rpm firefox-debuginfo-38.1.1-1.el5_11.i386.rpm firefox-debuginfo-38.1.1-1.el5_11.x86_64.rpm
Red Hat Enterprise Linux Desktop (v. 6):
Source: firefox-38.1.1-1.el6_7.src.rpm
i386: firefox-38.1.1-1.el6_7.i686.rpm firefox-debuginfo-38.1.1-1.el6_7.i686.rpm
x86_64: firefox-38.1.1-1.el6_7.x86_64.rpm firefox-debuginfo-38.1.1-1.el6_7.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
x86_64: firefox-38.1.1-1.el6_7.i686.rpm firefox-debuginfo-38.1.1-1.el6_7.i686.rpm


Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2015:1581-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2015:1581.html
Issue date: 2015-08-07

Topic

Updated firefox packages that fix one security issue are now available forRed Hat Enterprise Linux 5, 6, and 7.Red Hat Product Security has rated this update as having Important securityimpact. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available from the CVE link in theReferences section.

Topics%20covered

Topics Covered

security advisory update red hat important security patch firefox local file theft

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) - 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

1251318 - CVE-2015-4495 Mozilla: Same origin violation and local file stealing via PDF reader (MFSA 2015-78)

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