10 - RHSA-2016:0695

Problem Description:

An update for firefox is now available for Red Hat Enterprise Linux 5, Red Hat Enterprise Linux 6, and Red Hat Enterprise Linux 7.

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

2. 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

3. Description:

Mozilla Firefox is an open source web browser.

This update upgrades Firefox to version 45.1.0 ESR.

Security Fix(es):

* Multiple 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-2016-2805, CVE-2016-2806, CVE-2016-2807, CVE-2016-2808, CVE-2016-2814)

Red Hat would like to thank the Mozilla project for reporting these issues. Upstream acknowledges Phil Ringalda, CESG (the Information Security Arm of GCHQ), Sascha Just, Jesse Ruderman, Christian Holler, Tyson Smith, Boris Zbarsky, David Bolter, Carsten Book, Mats Palmgren, Gary Kwong, and Randell Jesup as the original reporters.

4. Solution:

For details on how to apply this update, which includes the changes described in this advisory, refer to:

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

After installing the update, Firefox must be restarted for the changes to take effect.

5. Bugs fixed (https://bugzilla.redhat.com/):

1330266 - CVE-2016-2805 Mozilla: Miscellaneous memory safety hazards (rv:38.8) (MFSA 2016-39) 1330270 - CVE-2016-2806 Mozilla: Miscellaneous memory safety hazards (rv:46.0 / rv:45.1) (MFSA 2016-39) 1330271 - CVE-2016-2807 Mozilla: Miscellaneous memory safety hazards (rv:46.0 / rv:45.1 / rv:38.8) (MFSA 2016-39) 1330280 - CVE-2016-2814 Mozilla: Buffer overflow in libstagefright with CENC offsets (MFSA 2016-44) 1330286 - CVE-2016-2808 Mozilla: Write to invalid HashMap entry through JavaScript.watch() (MFSA 2016-47)