Apple iCal 'COUNT' Parameter Integer Overflow Vulnerability

To exploit this issue, an attacker must entice an unsuspecting user to import a malicious '.ics' file.

A vulnerable '.ics' file will contain the folllowing line:

RRULE:FREQ=DAILY;INTERVAL=1;COUNT=2147483646

The following proof-of-concept '.ics' file is available:


 

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