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RHEL Security Advisory: RHSA-2022:1002-01 Urgent Firefox Patch

red hat
Calendar Grey February 16, 2016
Scroller Redhat
Debian has announced important patches for the popular Chrome browser, addressing security issues across various editions to protect users from potential threats.
Updated firefox packages that fix multiple security issues 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.
Multiple security flaws were found in the graphite2 font library shipped with Firefox. 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-2016-1521, CVE-2016-1522, CVE-2016-1523)
All Firefox users should upgrade to these updated packages, which contain Firefox version 38.6.1 ESR, which corrects these issues. After installing the update, Firefox must be restarted for the changes to take effect.

Topics%20covered

Topics Covered

security advisory critical issue software patch arbitrary code execution Red Hat Enterprise Linux malicious content firefox update

References

https://access.redhat.com/security/cve/CVE-2016-1521 https://access.redhat.com/security/cve/CVE-2016-1522 https://access.redhat.com/security/cve/CVE-2016-1523 https://access.redhat.com/security/updates/classification#critical https://www.mozilla.org/en-US/security/advisories/mfsa2016-14/

Package List

Red Hat Enterprise Linux Desktop (v. 5 client):
Source: firefox-38.6.1-1.el5_11.src.rpm
i386: firefox-38.6.1-1.el5_11.i386.rpm firefox-debuginfo-38.6.1-1.el5_11.i386.rpm
x86_64: firefox-38.6.1-1.el5_11.i386.rpm firefox-38.6.1-1.el5_11.x86_64.rpm firefox-debuginfo-38.6.1-1.el5_11.i386.rpm firefox-debuginfo-38.6.1-1.el5_11.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source: firefox-38.6.1-1.el5_11.src.rpm
i386: firefox-38.6.1-1.el5_11.i386.rpm firefox-debuginfo-38.6.1-1.el5_11.i386.rpm
ppc: firefox-38.6.1-1.el5_11.ppc64.rpm firefox-debuginfo-38.6.1-1.el5_11.ppc64.rpm
s390x: firefox-38.6.1-1.el5_11.s390.rpm firefox-38.6.1-1.el5_11.s390x.rpm firefox-debuginfo-38.6.1-1.el5_11.s390.rpm firefox-debuginfo-38.6.1-1.el5_11.s390x.rpm
x86_64: firefox-38.6.1-1.el5_11.i386.rpm firefox-38.6.1-1.el5_11.x86_64.rpm firefox-debuginfo-38.6.1-1.el5_11.i386.rpm firefox-debuginfo-38.6.1-1.el5_11.x86_64.rpm
Red Hat Enterprise Linux Desktop (v. 6):
Source: firefox-38.6.1-1.el6_7.src.rpm
i386: firefox-38.6.1-1.el6_7.i686.rpm firefox-debuginfo-38.6.1-1.el6_7.i686.rpm
x86_64: firefox-38.6.1-1.el6_7.x86_64.rpm firefox-debuginfo-38.6.1-1.el6_7.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
x86_64: firefox-38.6.1-1.el6_7.i686.rpm firefox-debuginfo-38.6.1-1.el6_7.i686.rpm


Read the Full Advisory


Severity
critical
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2016:0197-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2016:0197.html
Issue date: 2016-02-16

Topic

Updated firefox packages that fix multiple security issues are nowavailable for Red Hat Enterprise Linux 5, 6, and 7.Red Hat Product Security has rated this update as having Critical securityimpact. Common Vulnerability Scoring System (CVSS) base scores, which givedetailed severity ratings, are available for each vulnerability from theCVE links in the References section.

Topics%20covered

Topics Covered

security advisory critical issue software patch arbitrary code execution Red Hat Enterprise Linux malicious content firefox update

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

1305805 - CVE-2016-1521 graphite2: Out-of-bound read vulnerability triggered by crafted fonts

1305810 - CVE-2016-1522 graphite2: Null pointer dereference and out-of-bounds access vulnerabilities

1305813 - CVE-2016-1523 graphite2: Heap-based buffer overflow in context item handling functionality

1306496 - Mozilla: Vulnerabilities in Graphite 2 (MFSA 2016-14)

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