RHSA-2013:0272 - Security Advisory

Topic

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 critical
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 content. Malicious
content could cause Thunderbird to crash or, potentially, execute arbitrary
code with the privileges of the user running Thunderbird. (CVE-2013-0775,
CVE-2013-0780, CVE-2013-0782, CVE-2013-0783)

It was found that, after canceling a proxy server's authentication
prompt, the address bar continued to show the requested site's address. An
attacker could use this flaw to conduct phishing attacks by tricking a
user into believing they are viewing trusted content. (CVE-2013-0776)

Red Hat would like to thank the Mozilla project for reporting these issues.
Upstream acknowledges Nils, Abhishek Arya, Olli Pettay, Christoph Diehl,
Gary Kwong, Jesse Ruderman, Andrew McCreight, Joe Drew, Wayne Mery, and
Michal Zalewski as the original reporters of these issues.

Note: All 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.

Important: This erratum upgrades Thunderbird to version 17.0.3 ESR.
Thunderbird 17 is not completely backwards-compatible with all Mozilla
add-ons and Thunderbird plug-ins that worked with Thunderbird 10.0.
Thunderbird 17 checks compatibility on first-launch, and, depending on the
individual configuration and the installed add-ons and plug-ins, may
disable said Add-ons and plug-ins, or attempt to check for updates and
upgrade them. Add-ons and plug-ins may have to be manually updated.

All Thunderbird users should upgrade to this updated package, which
contains Thunderbird version 17.0.3 ESR, 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/knowledge/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.3 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.3 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.9 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 5.9 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 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 6.3 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 6.3 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 from RHUI 5 i386
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 5.9 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 5.9 i386
• 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 Desktop 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x

Fixes

• BZ - 911836 - CVE-2013-0783 Mozilla: Miscellaneous memory safety hazards (rv:17.0.3) (MFSA 2013-21)
• BZ - 911843 - CVE-2013-0775 Mozilla: Use-after-free in nsImageLoadingContent (MFSA 2013-26)
• BZ - 911844 - CVE-2013-0776 Mozilla: Phishing on HTTPS connection through malicious proxy (MFSA 2013-27)
• BZ - 911865 - CVE-2013-0780 CVE-2013-0782 Mozilla: Use-after-free, out of bounds read, and buffer overflow issues found using Address Sanitizer (MFSA 2013-28)

CVEs

• CVE-2013-0782
• CVE-2013-0783
• CVE-2013-0780
• CVE-2013-0776
• CVE-2013-0775

References

• https://access.redhat.com/security/updates/classification/#critical