Important CentOS thunderbird Security Update


thunderbird-45.4.0-1.el5.centos.i386.rpm, thunderbird-45.4.0-1.el5.centos.src.rpm, thunderbird-45.4.0-1.el5.centos.x86_64.rpm, thunderbird-45.4.0-1.el6.centos.i686.rpm, thunderbird-45.4.0-1.el6.centos.src.rpm, thunderbird-45.4.0-1.el6.centos.x86_64.rpm, thunderbird-45.4.0-1.el7.centos.src.rpm, thunderbird-45.4.0-1.el7.centos.x86_64.rpm
2017-07-27 19:11
Critical CentOS firefox Security Update
CVE-2016-5257 firefox-esr
CVE-2016-5257 icedove
CVE-2016-5257 firefox
2017-04-01 19:10
2017-01-05 20:14


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.

Mozilla Thunderbird is a standalone mail and newsgroup client.

This update upgrades Thunderbird to version 45.4.0.

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-2016-5257)

Red Hat would like to thank the Mozilla project for reporting these issues. Upstream acknowledges Christoph Diehl, Andrew McCreight, Dan Minor, Byron Campen, Jon Coppeard, Steve Fink, Tyson Smith, Philipp and Carsten Book as the original reporters.
Please see

Am I vulnerable?

The constraints below list the versions that this vulnerability is patched in, and versions that are unaffected. If a patch is ready but unrealeased, then it is pending.

Or, you can just let us figure it out for you! Appcanary continously monitor your installed packages, and tell you if any of them are vulnerable.

Sign up for monitoring

Affected package information

Release Package Patched in
5 thunderbird thunderbird-45.4.0-1.el5.centos.i386.rpm
thunderbird thunderbird-45.4.0-1.el5.centos.src.rpm
thunderbird thunderbird-45.4.0-1.el5.centos.x86_64.rpm
6 thunderbird thunderbird-45.4.0-1.el6.centos.i686.rpm
thunderbird thunderbird-45.4.0-1.el6.centos.src.rpm
thunderbird thunderbird-45.4.0-1.el6.centos.x86_64.rpm
7 thunderbird thunderbird-45.4.0-1.el7.centos.src.rpm
thunderbird thunderbird-45.4.0-1.el7.centos.x86_64.rpm