Issued:

2016-01-27

Updated:

2016-01-27

RHSA-2016:0071 - Critical: firefox security update

Synopsis

Critical: firefox security update

Type/Severity

Security Advisory Critical

Topic

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

Red Hat Product Security has rated this update as having Critical security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

Description

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.

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

Affected Products

Updated Packages

• firefox-38.6.0-1.el6_7.x86_64.rpm
• firefox-debuginfo-38.6.0-1.el6_7.ppc64.rpm
• firefox-debuginfo-38.6.0-1.el7_2.ppc.rpm
• firefox-38.6.0-1.el7_2.s390x.rpm
• firefox-debuginfo-38.6.0-1.el7_2.s390.rpm
• firefox-debuginfo-38.6.0-1.el5_11.x86_64.rpm
• firefox-38.6.0-1.el7_2.ppc64.rpm
• firefox-38.6.0-1.el5_11.s390x.rpm
• firefox-38.6.0-1.el6_7.s390.rpm
• firefox-debuginfo-38.6.0-1.el6_7.s390x.rpm
• firefox-38.6.0-1.el5_11.x86_64.rpm
• firefox-38.6.0-1.el5_11.i386.rpm
• firefox-38.6.0-1.el6_7.ppc64.rpm
• firefox-38.6.0-1.el7_2.s390.rpm
• firefox-38.6.0-1.el5_11.s390.rpm
• firefox-38.6.0-1.el7_2.ppc.rpm
• firefox-38.6.0-1.el6_7.s390x.rpm
• firefox-debuginfo-38.6.0-1.el7_2.s390x.rpm
• firefox-38.6.0-1.el6_7.i686.rpm
• firefox-debuginfo-38.6.0-1.el6_7.i686.rpm
• firefox-38.6.0-1.el6_7.ppc.rpm
• firefox-debuginfo-38.6.0-1.el6_7.s390.rpm
• firefox-debuginfo-38.6.0-1.el6_7.ppc.rpm
• firefox-debuginfo-38.6.0-1.el5_11.ppc64.rpm
• firefox-38.6.0-1.el5_11.ppc64.rpm
• firefox-debuginfo-38.6.0-1.el6_7.x86_64.rpm
• firefox-debuginfo-38.6.0-1.el5_11.s390x.rpm
• firefox-38.6.0-1.el6_7.src.rpm
• firefox-debuginfo-38.6.0-1.el7_2.i686.rpm
• firefox-debuginfo-38.6.0-1.el7_2.x86_64.rpm
• firefox-38.6.0-1.el7_2.x86_64.rpm
• firefox-debuginfo-38.6.0-1.el5_11.s390.rpm
• firefox-debuginfo-38.6.0-1.el7_2.ppc64.rpm
• firefox-debuginfo-38.6.0-1.el5_11.i386.rpm
• firefox-38.6.0-1.el7_2.i686.rpm
• firefox-38.6.0-1.el5_11.src.rpm

Fixes

• This content is not included.BZ - 1301818
• This content is not included.BZ - 1301821

CVEs

• CVE-2016-1935
• CVE-2016-1930

References

• https://access.redhat.com/security/updates/classification/#critical
• Content from www.mozilla.org is not included.Content from www.mozilla.org is not included.https://www.mozilla.org/en-US/security/known-vulnerabilities/firefox-esr/#firefoxesr38.6

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.