The following updates has been released for CentOS 5/6:

CESA-2016:1217 Critical CentOS 5 firefox Security Update
CESA-2016:1217 Critical CentOS 6 firefox Security Update
CESA-2016:1237 Important CentOS 6 ImageMagick Security Update
CESA-2016:1237 Important CentOS 7 ImageMagick Security Update

CESA-2016:1217 Critical CentOS 5 firefox Security Update

CentOS Errata and Security Advisory 2016:1217 Critical

Upstream details at : https://rhn.redhat.com/errata/RHSA-2016-1217.html

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

i386:
4f682310ef08803318d69e4044446dac5beab8bc046daf8e66ac5c1c4f95e373 firefox-45.2.0-1.el5.centos.i386.rpm

x86_64:
4f682310ef08803318d69e4044446dac5beab8bc046daf8e66ac5c1c4f95e373 firefox-45.2.0-1.el5.centos.i386.rpm
95a69b243ad4569af34a05fc1806d826a665a38550abe275f93de0b4378ddf95 firefox-45.2.0-1.el5.centos.x86_64.rpm

Source:
02393904e04805e7f719e8b2d47d0f63a639e788a7c0f9f9df13826db83edb74 firefox-45.2.0-1.el5.centos.src.rpm

CESA-2016:1217 Critical CentOS 6 firefox Security Update

CentOS Errata and Security Advisory 2016:1217 Critical

Upstream details at : https://rhn.redhat.com/errata/RHSA-2016-1217.html

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

i386:
acc8466a5e2e7b4f97e476ef08608babd3957f9dea929ede45436549dd189940 firefox-45.2.0-1.el6.centos.i686.rpm

x86_64:
acc8466a5e2e7b4f97e476ef08608babd3957f9dea929ede45436549dd189940 firefox-45.2.0-1.el6.centos.i686.rpm
3c0badf351a25c811dce868afd434b9341a3da64018937be7bac76c39ecb5a42 firefox-45.2.0-1.el6.centos.x86_64.rpm

Source:
733ca4db9bc0d6dcb4edc0d270299834e4b78b0f115025fd310146ce420380e2 firefox-45.2.0-1.el6.centos.src.rpm

CESA-2016:1237 Important CentOS 6 ImageMagick Security Update

CentOS Errata and Security Advisory 2016:1237 Important

Upstream details at : https://rhn.redhat.com/errata/RHSA-2016-1237.html

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

i386:
65c983e6e5121fe3739bef92b59f71c343a382b583ecc2ad29c536d48e354a74 ImageMagick-6.7.2.7-5.el6_8.i686.rpm
1ce7dfba86870708042cba5180c90d04e66067444192fad0c94cd89a64f8d25c ImageMagick-c++-6.7.2.7-5.el6_8.i686.rpm
3f5b4e728b60086914fb981d691bdf85c693119e4a9d4be21db3bc7c805e710a ImageMagick-c++-devel-6.7.2.7-5.el6_8.i686.rpm
b84e69c4ae62329d7b39d9c872755056e08b1b749d8a527f8b77d1ce072854db ImageMagick-devel-6.7.2.7-5.el6_8.i686.rpm
ae675e2b4041e3c5616f866eb200403e7a534ca485902b4216615907382fa89a ImageMagick-doc-6.7.2.7-5.el6_8.i686.rpm
78b1ee094571ea9cfe915c63cd9ad1a0406221c7428b08bd4521cc19635223c7 ImageMagick-perl-6.7.2.7-5.el6_8.i686.rpm

x86_64:
65c983e6e5121fe3739bef92b59f71c343a382b583ecc2ad29c536d48e354a74 ImageMagick-6.7.2.7-5.el6_8.i686.rpm
7b18fce8ab88c27d216956e7719664cf1d4295483a2cd1558034d299f886185d ImageMagick-6.7.2.7-5.el6_8.x86_64.rpm
1ce7dfba86870708042cba5180c90d04e66067444192fad0c94cd89a64f8d25c ImageMagick-c++-6.7.2.7-5.el6_8.i686.rpm
9c64febc2372c91e557adfead3481b2d7c6c44aff7bc96061a97b3a0b3c1dcfc ImageMagick-c++-6.7.2.7-5.el6_8.x86_64.rpm
3f5b4e728b60086914fb981d691bdf85c693119e4a9d4be21db3bc7c805e710a ImageMagick-c++-devel-6.7.2.7-5.el6_8.i686.rpm
96874c4e1b25ce7dd6ab5754dae183d738f9092f128a7088fef6ba7d5df8dd2c ImageMagick-c++-devel-6.7.2.7-5.el6_8.x86_64.rpm
b84e69c4ae62329d7b39d9c872755056e08b1b749d8a527f8b77d1ce072854db ImageMagick-devel-6.7.2.7-5.el6_8.i686.rpm
61b212db7fba37e77b24bdd29830da40af93bfc6fd435f14b13b48cb7fc4c99e ImageMagick-devel-6.7.2.7-5.el6_8.x86_64.rpm
2089a7c8bdec3d78fc317bf665050221a387f5388378dad3111d156733573647 ImageMagick-doc-6.7.2.7-5.el6_8.x86_64.rpm
8fb705c93e211aa5c177175c045fb848efd0fae691d8a97333508b73e06a7295 ImageMagick-perl-6.7.2.7-5.el6_8.x86_64.rpm

Source:
426aa2c46e8591e4fafc55d1c7c32f5f154a0dd48b81afc1485f360c1871f565 ImageMagick-6.7.2.7-5.el6_8.src.rpm

CESA-2016:1237 Important CentOS 7 ImageMagick Security Update

CentOS Errata and Security Advisory 2016:1237 Important

Upstream details at : https://rhn.redhat.com/errata/RHSA-2016-1237.html

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

x86_64:
c2381a8bc056204b610b111e957897b0992c3814d9a8e7dbdd304a85ac401aa8 ImageMagick-6.7.8.9-15.el7_2.i686.rpm
b47a343b21df93744f88fa94eb049905763150f97804ed7971d0cdfad28e6bf8 ImageMagick-6.7.8.9-15.el7_2.x86_64.rpm
5a3ffb1e7eecb59304481181a6b0935e4fcd8ecadd0630a43934143d7c97be51 ImageMagick-c++-6.7.8.9-15.el7_2.i686.rpm
492fc944f8908199248f1fdba5b6c5a15aa1422aaece6eae899747380cb20d5f ImageMagick-c++-6.7.8.9-15.el7_2.x86_64.rpm
f6f17de463a7378fc3ae7126d5d1112a26b1566c3e73051eaea4ac0dfec3408e ImageMagick-c++-devel-6.7.8.9-15.el7_2.i686.rpm
7106ca5a407e75158056c82bd2cd9ecbb112be6e29d599594d952c779bdd57f5 ImageMagick-c++-devel-6.7.8.9-15.el7_2.x86_64.rpm
e0c9445f1d7a1b4a0ee97d7d1e3c6665667ebf84557f87227cbe7f1950930496 ImageMagick-devel-6.7.8.9-15.el7_2.i686.rpm
03f51bda15c581bcc6e56d5f24803c44ac46d56bf180058e93ddb39258cd1fbe ImageMagick-devel-6.7.8.9-15.el7_2.x86_64.rpm
8c5b7f5064340a04eb8cdbfb8a20d3e0cb11d6867ef64820fd9edc7be89c7329 ImageMagick-doc-6.7.8.9-15.el7_2.x86_64.rpm
feb0024d0d98cb90f3dc02b08af565548ac9d6e0b9548a7af2fc0b1d66289b4f ImageMagick-perl-6.7.8.9-15.el7_2.x86_64.rpm

Source:
401974be1ac1a9e64fe9a8d8a0d8ee9a32fbf8deef2ee23ad7e37c0f43a9d184 ImageMagick-6.7.8.9-15.el7_2.src.rpm