New Thunderbird packages are available for Slackware 10.2 and -current to fix a security issue:

MFSA 2005-59 Command-line handling on Linux allows shell execution

More details about this issue may be found on the Mozilla web site:

http://www.mozilla.org/projects/security/known-vulnerabilities.html#Thunderbird


Here are the details from the Slackware 10.2 ChangeLog:
+--------------------------+
patches/packages/mozilla-thunderbird-1.0.7-i686-1.tgz:
Upgraded to thunderbird-1.0.7.
This fixes a security issue where URLs passed on the command line to the
thunderbird shell script were not correctly protected against
interpretation by the shell. As a result, a malicious URL could contain
embedded shell commands which would then be executed as the user running
Thunderbird.
For more information, see:
http://www.mozilla.org/projects/security/known-vulnerabilities.html#Thunderbird
(* Security fix *)
+--------------------------+


Where to find the new package:
+-----------------------------+

Updated package for Slackware 10.2:
ftp://ftp.slackware.com/pub/slackware/slackware-10.2/patches/packages/mozilla-thunderbird-1.0.7-i686-1.tgz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/xap/mozilla-thunderbird-1.0.7-i686-1.tgz


MD5 signatures:
+-------------+

Slackware 10.2 package:
2957fa535b1333abd2dc5204d1a4cd5d mozilla-thunderbird-1.0.7-i686-1.tgz

Slackware -current package:
2957fa535b1333abd2dc5204d1a4cd5d mozilla-thunderbird-1.0.7-i686-1.tgz


Installation instructions:
+------------------------+

Upgrade the package as root:
# upgradepkg mozilla-thunderbird-1.0.7-i686-1.tgz


+-----+

Slackware Linux Security Team
http://slackware.com/gpg-key
security@slackware.com