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“ We discovered a vulnerability in Sudo ’s get_process_ttyname ( ) for Linux : this function opens “ / proc / [ pid ] / stat ” ( man proc ) and reads the device number of the tty from field 7 ( tty_nr ) .
 We: discoverer; a vulnerability: vulnerability; Sudo: vulnerable system; Linux: vulnerable system; get_process_ttyname ( ): vulnerable system
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:
 We: discoverer; a vulnerability: vulnerability; Sudo: vulnerable system; Linux: vulnerable system; get_process_ttyname ( ): vulnerable system