CentOS Errata and Bugfix Advisory 2014:1791 

Upstream details at : https://rhn.redhat.com/errata/RHBA-2014-1791.html

The following updated files have been uploaded and are currently 
syncing to the mirrors: ( sha256sum Filename ) 

i386:
0aff6c02ac940bf39a6988ff0261f3d85e493c10d6f5e9e8e18f5f06e379d35b  stunnel-4.15-2.el5.2.i386.rpm

x86_64:
46a9f9c6d9d2e80727cee1230c85c0f9a965b3c889b764a1e6e2134226b3ab0d  stunnel-4.15-2.el5.2.x86_64.rpm

Source:
e179fc82d1b156b0b7cd1a86f788b099e8ff156a5bf62807affa25e4a5f4a509  stunnel-4.15-2.el5.2.src.rpm