2717
The Internet Systems Consortium patched the BIND domain name system this week , addressing a remotely exploitable vulnerability it considers high severity and said could lead to a crash .
 ( patch vulnerability: patched,  The Internet Systems Consortium: releaser, the BIND domain name system: vulnerable system, this week: time) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: phishing, data breach, ransom, discover vulnerability, patch vulnerability, Arguments type: vulnerable system, capabilities, vulnerability, number of victim, issues addressed, compromised data, damage amount, common vulnerabilities and exposures, victim, patch number, number of data, tool, discoverer, time, purpose, place, payment method, releaser, vulnerable system version, attacker, supported platform, patch, price, vulnerable system owner, trusted entity, attack pattern. 
Text: {0} 
Answer:
 ( patch vulnerability: patched,  The Internet Systems Consortium: releaser, the BIND domain name system: vulnerable system, this week: time) 