10 - RHSA-2014:0449

Problem Description:

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

The Red Hat Security Response Team 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.

2. Relevant releases/architectures:

RHEL Optional Productivity Applications (v. 5 server) - i386, 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 Server Optional (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

3. 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-2014-1518, CVE-2014-1524, CVE-2014-1529, CVE-2014-1531)

A use-after-free flaw was found in the way Thunderbird resolved hosts in certain circumstances. An attacker could use this flaw to crash Thunderbird or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2014-1532)

An out-of-bounds read flaw was found in the way Thunderbird decoded JPEG images. Loading an email or a web page containing a specially crafted JPEG image could cause Thunderbird to crash. (CVE-2014-1523)

A flaw was found in the way Thunderbird handled browser navigations through history. An attacker could possibly use this flaw to cause the address bar of the browser to display a web page name while loading content from an entirely different web page, which could allow for cross-site scripting (XSS) attacks. (CVE-2014-1530)

Red Hat would like to thank the Mozilla project for reporting these issues. Upstream acknowledges Bobby Holley, Carsten Book, Christoph Diehl, Gary Kwong, Jan de Mooij, Jesse Ruderman, Nathan Froyd, Christian Holler, Abhishek Arya, Mariusz Mlynski, moz_bug_r_a4, Nils, Tyson Smith and Jesse Schwartzentrube as the original reporters of these issues.

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.

For technical details regarding these flaws, refer to the Mozilla security advisories for Thunderbird 24.5.0. 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 24.5.0, which corrects these issues. After installing the update, Thunderbird must be restarted for the changes to take effect.

4. 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/site/articles/11258

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

1092657 - CVE-2014-1518 Mozilla: Miscellaneous memory safety hazards (rv:24.5) (MFSA 2014-34) 1092660 - CVE-2014-1523 Mozilla: Out of bounds read while decoding JPG images (MFSA-2014-37) 1092663 - CVE-2014-1524 Mozilla: Buffer overflow when using non-XBL object as XBL (MFSA 2014-38) 1092664 - CVE-2014-1529 Mozilla: Privilege escalation through Web Notification API (MFSA 2014-42) 1092666 - CVE-2014-1530 Mozilla: Cross-site scripting (XSS) using history navigations (MFSA 2014-43) 1092668 - CVE-2014-1531 Mozilla: Use-after-free in imgLoader while resizing images (MFSA 2014-44) 1092670 - CVE-2014-1532 Mozilla: Use-after-free in nsHostResolver (MFSA 2014-46)