Debian: DSA-2345-1 Critical: Icedove Remote Attack Vulnerabilities

Several vulnerabilities have been discovered in Icedove, a mail client
based on Thunderbird.

CVE-2011-3647
The JSSubScriptLoader does not properly handle
XPCNativeWrappers during calls to the loadSubScript method in
an add-on, which makes it easier for remote attackers to gain
privileges via a crafted web site that leverages certain
unwrapping behavior.

CVE-2011-3648
A cross-site scripting (XSS) vulnerability allows remote
attackers to inject arbitrary web script or HTML via crafted
text with Shift JIS encoding.

CVE-2011-3650
Iceweasel does not properly handle JavaScript files that
contain many functions, which allows user-assisted remote
attackers to cause a denial of service (memory corruption and
application crash) or possibly have unspecified other impact
via a crafted file that is accessed by debugging APIs, as
demonstrated by Firebug.

For the stable distribution (squeeze), these problems have been fixed
in version 3.0.11-1+squeeze6.

For the ...