A nss-util Security Update has been released for CentOS 7

CentOS Errata and Security Advisory 2019:4190 Important

Upstream details at :   https://access.redhat.com/errata/RHSA-2019:4190

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

x86_64:
6c9d137d7e7982c4480a57d3c2cc6357057c1c0f60b49f3ba6d707dc7e3cb9dc nss-util-3.44.0-4.el7_7.i686.rpm
401b5322ea4d54d259a1947a92417671831bc17adbcbf487e7b52eda793ff457 nss-util-3.44.0-4.el7_7.x86_64.rpm
2937b875c0308a20b4a347392696b086b6d21021d622bcc649a249a36db1189d nss-util-devel-3.44.0-4.el7_7.i686.rpm
3d9bc3e6fcbe478a8a3d3bb190a19b7ee234e15e66560e833cf3f9f440772bb5 nss-util-devel-3.44.0-4.el7_7.x86_64.rpm

Source:
51cc8f90215caf53dc9348ab7f5112b637d4f147feef43278adaa322a7db2020 nss-util-3.44.0-4.el7_7.src.rpm