Issued:

2010-10-19

Updated:

2010-10-19

RHSA-2010:0780 - Moderate: thunderbird security update

Synopsis

Moderate: thunderbird security update

Type/Severity

Security Advisory Moderate

Topic

An updated thunderbird package that fixes several security issues is now available for Red Hat Enterprise Linux 4 and 5.

The Red Hat Security Response Team has rated this update as having moderate 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 HTML mail content. An HTML mail message containing malicious content could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. (CVE-2010-3176, CVE-2010-3180)

Note: JavaScript support is disabled by default in Thunderbird. The above issues are not exploitable unless JavaScript is enabled.

A flaw was found in the script that launches Thunderbird. The LD_LIBRARY_PATH variable was appending a "." character, which could allow a local attacker to execute arbitrary code with the privileges of a different user running Thunderbird, if that user ran Thunderbird from within an attacker-controlled directory. (CVE-2010-3182)

All Thunderbird users should upgrade to this updated package, which resolves these issues. All running instances of Thunderbird must be restarted for the update 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 This content is not included.http://kbase.redhat.com/faq/docs/DOC-11259

Affected Products

Updated Packages

• thunderbird-1.5.0.12-31.el4.i386.rpm
• thunderbird-1.5.0.12-31.el4.src.rpm
• thunderbird-2.0.0.24-9.el5.i386.rpm
• thunderbird-2.0.0.24-9.el5.src.rpm
• thunderbird-1.5.0.12-31.el4.x86_64.rpm
• thunderbird-1.5.0.12-31.el4.s390x.rpm
• thunderbird-1.5.0.12-31.el4.ia64.rpm
• thunderbird-2.0.0.24-9.el5.x86_64.rpm
• thunderbird-1.5.0.12-31.el4.ppc.rpm
• thunderbird-1.5.0.12-31.el4.s390.rpm

Fixes

• This content is not included.BZ - 642272
• This content is not included.BZ - 642283
• This content is not included.BZ - 642300

CVEs

• CVE-2010-3180
• CVE-2010-3182
• CVE-2010-3176

References

• http://www.redhat.com/security/updates/classification/#moderate

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.