1114
Both researchers provided a proof - of - concept exploit for the flaw , and Cavallarin even offered an unofficial patch for plugging the hole .
 ( patch vulnerability: offered,  an unofficial patch: patch, Cavallarin: releaser) 
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: offered,  an unofficial patch: patch, Cavallarin: releaser) 