2952
McVittie said he was able to reproduce the bug in the Stretch version ( Debian 9 , in testing ) , but not in the Jessie version ( Debian 8 ) .
 ( discover vulnerability: said,  the bug: vulnerability, McVittie: discoverer, Stretch version: vulnerable system version, Jessie version: vulnerable system version, Debian 9: vulnerable system, Debian 8: vulnerable system) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: phishing, data breach, ransom, discover vulnerability, patch vulnerability, Arguments type: vulnerable system, capabilities, vulnerability, number of victim, issues addressed, compromised data, damage amount, common vulnerabilities and exposures, victim, patch number, number of data, tool, discoverer, time, purpose, place, payment method, releaser, vulnerable system version, attacker, supported platform, patch, price, vulnerable system owner, trusted entity, attack pattern. 
Text: {0} 
Answer:
 ( discover vulnerability: said,  the bug: vulnerability, McVittie: discoverer, Stretch version: vulnerable system version, Jessie version: vulnerable system version, Debian 9: vulnerable system, Debian 8: vulnerable system) 