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Alerts This Week
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Red Hat: RHSA-2016:0071-01 Critical: Firefox Buffer Overflow Threat

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Calendar Grey January 27, 2016
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Google Chrome's newest security patch addresses critical flaws affecting users on Ubuntu 18.04, 20.04, and 22.04. Update today.
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.
Several 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-2016-1930, CVE-2016-1935)
Red Hat would like to thank the Mozilla project for reporting these issues. Upstream acknowledges Bob Clary, Christian Holler, Nils Ohlmeier, Gary Kwong, Jesse Ruderman, Carsten Book, Randell Jesup, and Aki Helin as the original reporters of these issues.
All Firefox users should upgrade to these updated packages, which contain Firefox version 38.6.0 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 Red Hat update buffer overflow critical firefox web browser

References

https://access.redhat.com/security/cve/CVE-2016-1930 https://access.redhat.com/security/cve/CVE-2016-1935 https://access.redhat.com/security/updates/classification#critical https://www.mozilla.org/en-US/security/known-vulnerabilities/firefox-esr/#firefoxesr38.6

Package List

Red Hat Enterprise Linux Desktop (v. 5 client):
Source: firefox-38.6.0-1.el5_11.src.rpm
i386: firefox-38.6.0-1.el5_11.i386.rpm firefox-debuginfo-38.6.0-1.el5_11.i386.rpm
x86_64: firefox-38.6.0-1.el5_11.i386.rpm firefox-38.6.0-1.el5_11.x86_64.rpm firefox-debuginfo-38.6.0-1.el5_11.i386.rpm firefox-debuginfo-38.6.0-1.el5_11.x86_64.rpm
Red Hat Enterprise Linux (v. 5 server):
Source: firefox-38.6.0-1.el5_11.src.rpm
i386: firefox-38.6.0-1.el5_11.i386.rpm firefox-debuginfo-38.6.0-1.el5_11.i386.rpm
ppc: firefox-38.6.0-1.el5_11.ppc64.rpm firefox-debuginfo-38.6.0-1.el5_11.ppc64.rpm
s390x: firefox-38.6.0-1.el5_11.s390.rpm firefox-38.6.0-1.el5_11.s390x.rpm firefox-debuginfo-38.6.0-1.el5_11.s390.rpm firefox-debuginfo-38.6.0-1.el5_11.s390x.rpm
x86_64: firefox-38.6.0-1.el5_11.i386.rpm firefox-38.6.0-1.el5_11.x86_64.rpm firefox-debuginfo-38.6.0-1.el5_11.i386.rpm firefox-debuginfo-38.6.0-1.el5_11.x86_64.rpm
Red Hat Enterprise Linux Desktop (v. 6):
Source: firefox-38.6.0-1.el6_7.src.rpm
i386: firefox-38.6.0-1.el6_7.i686.rpm firefox-debuginfo-38.6.0-1.el6_7.i686.rpm
x86_64: firefox-38.6.0-1.el6_7.x86_64.rpm firefox-debuginfo-38.6.0-1.el6_7.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
x86_64: firefox-38.6.0-1.el6_7.i686.rpm firefox-debuginfo-38.6.0-1.el6_7.i686.rpm


Read the Full Advisory


Severity
critical
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2016:0071-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2016:0071.html
Issue date: 2016-01-27

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 Red Hat update buffer overflow critical firefox web browser

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

1301818 - CVE-2016-1930 Mozilla: Miscellaneous memory safety hazards (rv:38.6) (MFSA 2016-01)

1301821 - CVE-2016-1935 Mozilla: Buffer overflow in WebGL after out of memory allocation (MFSA 2016-03)

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