A new update is available for Fedora Core - [SECURITY] Fedora Core 4 Update: cups-1.1.23-15.2. Here the announcement:

Fedora Update Notification
FEDORA-2005-1142
2005-12-14
---------------------------------------------------------------------

Product : Fedora Core 4
Name : cups
Version : 1.1.23
Release : 15.2
Summary : Common Unix Printing System
Description :
The Common UNIX Printing System provides a portable printing layer for
UNIXÂ operating systems. It has been developed by Easy Software Products
to promote a standard printing solution for all UNIX vendors and users.
CUPS provides the System V and Berkeley command-line interfaces.

---------------------------------------------------------------------
Update Information:

This update fixes a security problem in the pdftops filter
(CVE-2005-3191, CVE-2005-3192, CVE-2005-3193).
---------------------------------------------------------------------
* Wed Dec 14 2005 Tim Waugh <twaugh@redhat.com> 1:1.1.23-15.2
- Applied patch to fix CVE-2005-3191/2/3 (bug #175646).


---------------------------------------------------------------------
This update can be downloaded from:
http://download.fedora.redhat.com/pub/fedora/linux/core/updates/4/

9f3241cdce65e2288063b004191d821f SRPMS/cups-1.1.23-15.2.src.rpm
b33b2065777807135ac0ee1163eee9dd ppc/cups-1.1.23-15.2.ppc.rpm
a1ad26b33f6ef8cd069d68a60965e420 ppc/cups-devel-1.1.23-15.2.ppc.rpm
baf953d87f7cae2351eebd4d84b51444 ppc/cups-libs-1.1.23-15.2.ppc.rpm
1a65b0e24de0a644463359b37828fc12 ppc/cups-lpd-1.1.23-15.2.ppc.rpm
adfeb798565f8b20161d3fc07d4d5ef8 ppc/debug/cups-debuginfo-1.1.23-15.2.ppc.rpm
4d37438acd0ba2d32debeb809b6cfa33 ppc/cups-libs-1.1.23-15.2.ppc64.rpm
afff8a06dc61ada2e1f557092b66706f x86_64/cups-1.1.23-15.2.x86_64.rpm
6ffc5a90953dbc600c5084a5a0c8ddf6 x86_64/cups-devel-1.1.23-15.2.x86_64.rpm
162ab3be0438376eb297dc616075be4b x86_64/cups-libs-1.1.23-15.2.x86_64.rpm
5debbf5530f0d3477b7ec56d4afd9163 x86_64/cups-lpd-1.1.23-15.2.x86_64.rpm
5a95f3142fcad950b4e1e7e584ef3381 x86_64/debug/cups-debuginfo-1.1.23-15.2.x86_64.rpm
180a0b4aa1378eab8ec521cb7bffb117 x86_64/cups-libs-1.1.23-15.2.i386.rpm
6c5206ca5b15d704bd6dd293c5b845ba i386/cups-1.1.23-15.2.i386.rpm
2f67ff6fe00c03c4113a83f19af7be19 i386/cups-devel-1.1.23-15.2.i386.rpm
180a0b4aa1378eab8ec521cb7bffb117 i386/cups-libs-1.1.23-15.2.i386.rpm
a25f210965cfd37b9a0819676bb98544 i386/cups-lpd-1.1.23-15.2.i386.rpm
4c09fe61e0419073f8b4014b06541cb5 i386/debug/cups-debuginfo-1.1.23-15.2.i386.rpm

This update can also be installed with the Update Agent; you can
launch the Update Agent with the 'up2date' command.