897
Jann Horn , the Google Project Zero researcher who discovered the Meltdown and Spectre CPU flaws , has a few words for maintainers of Ubuntu and Debian : raise your game on merging kernel security fixes , you 're leaving users exposed for weeks .
 Jann Horn: discoverer; the Meltdown: vulnerability; Spectre CPU flaws: vulnerability; Google Project Zero 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:
 Jann Horn: discoverer; the Meltdown: vulnerability; Spectre CPU flaws: vulnerability; Google Project Zero researcher: discoverer