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In November 2018 , a Google researcher also highlighted a critical flaw in Systemd that induced system crashes and hacks .
 November 2018: time; a critical flaw: vulnerability; Systemd: vulnerable system; induced system crashes and hacks: capabilities; a Google researcher: discoverer
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:
 November 2018: time; a critical flaw: vulnerability; Systemd: vulnerable system; induced system crashes and hacks: capabilities; a Google researcher: discoverer