A recent security update to rpcbind (SLSA-2017:1267) contained a bug that causes rpcbind to crash under some conditions. The specific conditions involve the interaction between ypbind, ypserv, and IPv6 addresses within rpcbind. The fix (SLBA-2017:1435 and SLBA-2017:1436) is currently available in the fastbugs repos. But given that there is potential for a significant unplanned outage when the latest rpcbind security update is applied, and that many SL systems do not install fastbugs by default, we will push SLBA-2017:1435 to security. Publication of a non-security package to older releases is something the SL Team generally does only to permit the installation of security updates. We're making an exception for this case. On June 19 2017, SLBA-2017:1435 and SLBA-2017:1436 will be published for all SL6 and SL7 releases so that it supersedes SLSA-2017:1267 in a default yum update operation