Moderate: thunderbird security update

Updated thunderbird packages that fix several security issues are now
available for Red Hat Enterprise Linux 4 and 5.

This update has been rated as having moderate security impact by the Red
Hat Security Response Team.

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 as the user running
Thunderbird. (CVE-2008-0016, CVE-2008-4058, CVE-2008-4059, CVE-2008-4060,
CVE-2008-4061, CVE-2008-4062)

Several flaws were found in the way malformed HTML mail content was
displayed. An HTML mail message containing specially crafted content could
potentially trick a Thunderbird user into surrendering sensitive
information. (CVE-2008-3835, CVE-2008-4067, CVE-2008-4068)

A flaw was found in Thunderbird that caused certain characters to be
stripped from JavaScript code. This flaw could allow malicious JavaScript
to bypass or evade script filters. (CVE-2008-4065, CVE-2008-4066)

Note: JavaScript support is disabled by default in Thunderbird; the above
issue is not exploitable unless JavaScript is enabled.

A heap based buffer overflow flaw was found in the handling of cancelled
newsgroup messages. If the user cancels a specially crafted newsgroup
message it could cause Thunderbird to crash or, potentially, execute
arbitrary code as the user running Thunderbird. (CVE-2008-4070)

All Thunderbird users should upgrade to these updated packages, which
resolve these issues.

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/FAQ_58_10188

463181 - CVE-2008-0016 Mozilla UTF-8 stack buffer overflow
463182 - CVE-2008-3835 mozilla: nsXMLDocument::OnChannelRedirect() same-origin violation
463190 - CVE-2008-4058 Mozilla privilege escalation via XPCnativeWrapper pollution
463192 - CVE-2008-4059 Mozilla privilege escalation via XPCnativeWrapper pollution
463198 - CVE-2008-4060 Mozilla privilege escalation via XPCnativeWrapper pollution
463199 - CVE-2008-4061 Mozilla layout engine crash
463201 - CVE-2008-4062 Mozilla crashes with evidence of memory corruption
463234 - CVE-2008-4065 Mozilla BOM characters stripped from JavaScript before execution
463243 - CVE-2008-4066 Mozilla low surrogates stripped from JavaScript before execution
463246 - CVE-2008-4067 Mozilla resource: traversal vulnerability
463248 - CVE-2008-4068 Mozilla local HTML file recource: bypass
464041 - CVE-2008-4070 Thunderbird cancelled newsgrop messages

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0016
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3835
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4058
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4059
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4060
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4061
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4062
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4065
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4066
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4067
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4068
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4070
http://www.redhat.com/security/updates/classification/#moderate