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As reported previously by ZDNet , the bug , dubbed " KRACK " -- which stands for Key Reinstallation Attack -- is at heart a fundamental flaw in the way Wi - Fi Protected Access II ( WPA2 ) operates .
 ZDNet: discoverer; bug: vulnerability; KRACK: vulnerability; Key Reinstallation Attack: vulnerability; flaw: vulnerability; Wi - Fi Protected Access II ( WPA2 ): vulnerable system
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: discover vulnerability 
  Option: vulnerable system owner, vulnerability, capabilities, time, vulnerable system version, discoverer, common vulnerabilities and exposures, supported platform, vulnerable system 
Text: {0} 
Answer:
 ZDNet: discoverer; bug: vulnerability; KRACK: vulnerability; Key Reinstallation Attack: vulnerability; flaw: vulnerability; Wi - Fi Protected Access II ( WPA2 ): vulnerable system