The nameserver bind was updated to fix a remote denial of service (crash) attack against bind nameservers doing validation on DNSSEC signed records. (CVE-2015-5722, bsc#944066).
9.6ESVR11W1-0.9.19.6ESVR11W1-0.9.19.6ESVR11W1-0.9.19.6ESVR11W1-0.9.19.6ESVR11W1-0.9.19.6ESVR11W1-0.9.19.6ESVR11W1-0.9.1