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Cloudbleed is a serious vulnerability in Cloudflare ’s internet infrastructure that Google Project Zero researcher Tavis Ormandy discovered in mid-February .
 Cloudbleed: vulnerability; a serious vulnerability: vulnerability; internet infrastructure: vulnerable system; Google Project Zero researcher Tavis Ormandy: discoverer; mid-February: time; Cloudflare: vulnerable system owner
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:
 Cloudbleed: vulnerability; a serious vulnerability: vulnerability; internet infrastructure: vulnerable system; Google Project Zero researcher Tavis Ormandy: discoverer; mid-February: time; Cloudflare: vulnerable system owner