RHSA-2014:1924 - Security Advisory

Topic

An updated thunderbird package that fixes multiple security issues is now
available for Red Hat Enterprise Linux 5, 6, and 7.

Red Hat Product Security has rated this update as having Important 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 Thunderbird is a standalone mail and newsgroup client.

Several 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-2014-1587, CVE-2014-1590, CVE-2014-1592, CVE-2014-1593)

A flaw was found in the Alarm API, which could allow applications to
schedule actions to be run in the future. A malicious web application could
use this flaw to bypass the same-origin policy. (CVE-2014-1594)

Note: All of the above issues cannot be exploited by a specially crafted
HTML mail message as JavaScript is disabled by default for mail messages.
They could be exploited another way in Thunderbird, for example, when
viewing the full remote content of an RSS feed.

This update disables SSL 3.0 support by default in Thunderbird. Details on
how to re-enable SSL 3.0 support are available at:
https://access.redhat.com/articles/1284233

Red Hat would like to thank the Mozilla project for reporting these issues.
Upstream acknowledges Gary Kwong, Randell Jesup, Nils Ohlmeier, Jesse
Ruderman, Max Jonas Werner, Joe Vennix, Berend-Jan Wever, Abhishek Arya,
and Boris Zbarsky as the original reporters of these issues.

For technical details regarding these flaws, refer to the Mozilla security
advisories for Thunderbird 31.3.0. You can find a link to the Mozilla
advisories in the References section of this erratum.

All Thunderbird users should upgrade to this updated package, which
contains Thunderbird version 31.3.0, which corrects these issues.
After installing the update, Thunderbird 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.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.6 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.6 i386
• Red Hat Enterprise Linux Server - AUS 6.6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 6.6 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 6.6 ppc64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server - TUS 6.6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x

Fixes

• BZ - 1169201 - CVE-2014-1587 Mozilla: Miscellaneous memory safety hazards (rv:31.3) (MFSA 2014-83)
• BZ - 1169206 - CVE-2014-1590 Mozilla: XMLHttpRequest crashes with some input streams (MFSA 2014-85)
• BZ - 1169208 - CVE-2014-1592 Mozilla: Use-after-free during HTML5 parsing (MFSA 2014-87)
• BZ - 1169209 - CVE-2014-1593 Mozilla: Buffer overflow while parsing media content (MFSA 2014-88)
• BZ - 1169210 - CVE-2014-1594 Mozilla: Bad casting from the BasicThebesLayer to BasicContainerLayer (MFSA 2014-89)

CVEs

• CVE-2014-1590
• CVE-2014-1593
• CVE-2014-1592
• CVE-2014-1587
• CVE-2014-1594

References

• https://access.redhat.com/security/updates/classification/#important
• https://www.mozilla.org/security/known-vulnerabilities/thunderbird.html#thunderbird31.3
• https://access.redhat.com/articles/1284233