Newbie kernel-source package question

[Nathan Barham <nathan@sleepygeek.com>]

Hello list,

I'm new to Debian and running woody on i386.  I want to find the 
2.4.18-12 source package containing the fix for the problem noted in 
Debian's security announcment DSA-403-1 (that got the Debian site 
compromised).  The announcement says ...

-snip-

For Debian it has been fixed in version 2.4.18-12 of the kernel source packages . . .

-snip-

When I try "apt-get install kernel-source-2.4.18-12" I get "E: Couldn't 
find package kernel-source-2.4.18-12".
When I try "apt-get install kernel-source-2.4.18" I end up with 
2.4.18-14, and am unsure if this package contains the fix or not.

Clearly I'm missing something basic.  Does 2.4.18-14 contain the fix? 
If not where can I find the correct package?

Thanks for any help.

-Nathan