CentOS Errata and Bugfix Advisory 2015:0098 

Upstream details at : https://rhn.redhat.com/errata/RHBA-2015-0098.html

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

i386:
4e4cd05361833384ad287cfb5cfcd8aed1ec0461d83bc754e51ee6c630e06c63  curl-7.19.7-40.el6_6.4.i686.rpm
1fdd61fea79c7e0f4f1c416909a54269f01f7879d2f2199e296089b52bb5f042  libcurl-7.19.7-40.el6_6.4.i686.rpm
6ff5a5059dfde80bdb33add0894bc6d89d9de5aa805d790c9b29784f79cabd41  libcurl-devel-7.19.7-40.el6_6.4.i686.rpm

x86_64:
43ac2a840e3bc14b3397ab4bc094315f6e285e291739d53146d4ec9c8287d221  curl-7.19.7-40.el6_6.4.x86_64.rpm
1fdd61fea79c7e0f4f1c416909a54269f01f7879d2f2199e296089b52bb5f042  libcurl-7.19.7-40.el6_6.4.i686.rpm
f05250feaea200500e271cf1bff1725bdebef29f002bb8fb80dfd9653dfc9f30  libcurl-7.19.7-40.el6_6.4.x86_64.rpm
6ff5a5059dfde80bdb33add0894bc6d89d9de5aa805d790c9b29784f79cabd41  libcurl-devel-7.19.7-40.el6_6.4.i686.rpm
3d853c62440e5ac2fdd67d2abd6fd438ba0170d6c9f2698c9654f192541fb9f3  libcurl-devel-7.19.7-40.el6_6.4.x86_64.rpm

Source:
44dfa657f77c2777366f6255b71938278db86014fc407e659c228dd3665a4e6b  curl-7.19.7-40.el6_6.4.src.rpm