CentOS Errata and Security Advisory 2017:1561 Important
Upstream details at : https://rhn.redhat.com/errata/RHSA-2017-1561.html
The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename )
x86_64: 9e268e52bbc826c0e2ad4ee804b95db2b3c874a4f96658c15fda3b79d84bda3c thunderbird-52.2.0-1.el7.centos.x86_64.rpm
Source: 802b57f128068ba42e4a6fa556756730a292ead0e63abaa7f8912af50d0f5171 thunderbird-52.2.0-1.el7.centos.src.rpm