perl regex vulnerability - debian - pcre only?

[Mike Astle]

That don't look so good:

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"[...] discovered a flaw in Perl's regular
expression engine. Specially crafted input to a regular expression can
cause Perl to improperly allocate memory, resulting in the possible
execution of arbitrary code with the permissions of the user running
Perl."

https://rhn.redhat.com/errata/RHSA-2007-0966.html

Also...

http://www.debian.org/security/2007/dsa-1399

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I only see new pcre3 packages for debian.  Is this a problem with just 
pcre or perl itself?

-mike