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The November 20 security update addresses a single flaw , designated CVE -2018-15981 .
 a single flaw: vulnerability; security update: patch; November: time; CVE -2018-15981: common vulnerabilities and exposures
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: patch vulnerability 
  Option: issues addressed, patch, vulnerability, time, vulnerable system version, releaser, patch number, common vulnerabilities and exposures, supported platform, vulnerable system 
Text: {0} 
Answer:
 a single flaw: vulnerability; security update: patch; November: time; CVE -2018-15981: common vulnerabilities and exposures