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Both researchers provided a proof - of - concept exploit for the flaw , and Cavallarin even offered an unofficial patch for plugging the hole .
 an unofficial patch: patch; Cavallarin: releaser
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: patch vulnerability 
  Option: issues addressed, patch, vulnerability, time, vulnerable system version, releaser, patch number, common vulnerabilities and exposures, supported platform, vulnerable system 
Text: {0} 
Answer:
 an unofficial patch: patch; Cavallarin: releaser