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When servers use both mechanisms simultaneously , a vulnerability ( CVE -2017-3135 ) that stems from query processing could result in an inconsistent state , triggering either an INSIST assertion failure or an attempt to read through a NULL pointer , according to a security advisory published Wednesday .
 ( discover vulnerability: published,  a vulnerability: vulnerability, CVE -2017-3135: common vulnerabilities and exposures, a security advisory: discoverer, Wednesday: time, an attempt to read through a NULL pointer: capabilities, stems from query processing: capabilities, an INSIST assertion failure: capabilities) 
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: published,  a vulnerability: vulnerability, CVE -2017-3135: common vulnerabilities and exposures, a security advisory: discoverer, Wednesday: time, an attempt to read through a NULL pointer: capabilities, stems from query processing: capabilities, an INSIST assertion failure: capabilities) 