CentOS Errata and Security Advisory 2009:0004 Important
https://rhn.redhat.com/errata/RHSA-2009-0004.html

The following updated files have been uploaded and are currently syncing to the mirrors:

i386:
openssl-0.9.7a-43.17.el4_7.2.i386.rpm
openssl-0.9.7a-43.17.el4_7.2.i686.rpm
openssl-devel-0.9.7a-43.17.el4_7.2.i386.rpm
openssl-perl-0.9.7a-43.17.el4_7.2.i386.rpm

src:
openssl-0.9.7a-43.17.el4_7.2.src.rpm