7.5 - RHSA-2017:0238

Problem Description:

An update for thunderbird 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 Important. 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 Client (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 Optional Productivity Applications (v. 5 server) - i386, x86_64 Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - aarch64, ppc64le, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64

3. Description:

Mozilla Thunderbird is a standalone mail and newsgroup client.

This update upgrades Thunderbird to version 45.7.0.

Security Fix(es):

* Multiple flaws were found in the processing of malformed web content. A web page containing malicious content could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2017-5373, CVE-2017-5375, CVE-2017-5376, CVE-2017-5378, CVE-2017-5380, CVE-2017-5383, CVE-2017-5390, CVE-2017-5396)

Red Hat would like to thank the Mozilla project for reporting these issues. Upstream acknowledges Jann Horn, Filipe Gomes, Nils, Armin Razmjou, Christian Holler, Gary Kwong, Andre Bargull, Jan de Mooij, Tom Schuster, Oriol, Rh0, Nicolas Gregoire, and Jerri Rice 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

All running instances of Thunderbird must be restarted for the update to take effect.

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

1415924 - CVE-2017-5373 Mozilla: Memory safety bugs fixed in Firefox 51 and Firefox ESR 45.7 (MFSA 2017-01) 1416271 - CVE-2017-5375 Mozilla: Excessive JIT code allocation allows bypass of ASLR and DEP (MFSA 2017-02) 1416272 - CVE-2017-5376 Mozilla: Use-after-free in XSL (MFSA 2017-02) 1416273 - CVE-2017-5378 Mozilla: Pointer and frame data leakage of Javascript objects (MFSA 2017-02) 1416274 - CVE-2017-5380 Mozilla: Potential use-after-free during DOM manipulations (MFSA 2017-02) 1416279 - CVE-2017-5390 Mozilla: Insecure communication methods in Developer Tools JSON viewer (MFSA 2017-02) 1416280 - CVE-2017-5396 Mozilla: Use-after-free with Media Decoder (MFSA 2017-02) 1416281 - CVE-2017-5383 Mozilla: Location bar spoofing with unicode characters (MFSA 2017-02)