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Google security researcher Tavis Ormandy recently discovered a serious vulnerability in the Chrome extension that leaves PCs wide open to attack .
 Google security researcher Tavis Ormandy: discoverer; a serious vulnerability: vulnerability; the Chrome extension: vulnerable system; leaves PCs wide open to attack: capabilities
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:
 Google security researcher Tavis Ormandy: discoverer; a serious vulnerability: vulnerability; the Chrome extension: vulnerable system; leaves PCs wide open to attack: capabilities