Closed Bug 1106529 Opened 5 years ago Closed 5 years ago
Thunderbird blocks (freezes) with following ics
1.20 KB, text/calendar
User Agent: Mozilla/5.0 (Windows NT 5.1; rv:33.0) Gecko/20100101 Firefox/33.0 Build ID: 20141106120505 Steps to reproduce: Attached calendar ICS file causes thunderbird to freeze forever. It was possibly generated by outlook as I was invited to this appointment. This appointment was part of a caldav sync with owncloud containing over 1.800 entries. However the error is reproducable by just adding this file as a new calendar. So it is not the caldav connector, ssl socket or else - just the ics-file itself. Actual results: Thunderbird blocks completely. No error message in the error console is displayed. The error occurses with Lightning 3.3.1, 188.8.131.52, 3.3.2 with Thunderbird 31.2.0 on Windows 7 and on Windows XP, German locale. If adding the enclosed ICS-File to Thunderbird it will hang instantly. You need to rename the file to make Thunderbird work again after killing and restarting. Otherwise - if not renamed - Thunderbird will never come up again. Expected results: Whatever the cause for this hang is - thunderbird should produce an error and direct to the conflicting appointment in the error console - but never freeze completely with CPU at 100% (or 25% on quadcore). I assume that it might be the UTF-8 characters producing this error.
BEGIN:VEVENT CREATED:20141017T065758Z PRIORITY:5 ORGANIZER;CN= Iris;CN=Becker\\:mailto:firstname.lastname@example.org ATTENDEE;PARTSTAT=DECLINED;CN='Daniel Becker';RSVP=TRUE;ROLE=REQ-PARTICIPAN There are two CN parameters in the organizer so it should be a duplicate of Bug 875739. Removing either the first or the second parameter, the calendar doesn't freeze Thunderbird.
Status: UNCONFIRMED → RESOLVED
Closed: 5 years ago
Resolution: --- → DUPLICATE
Duplicate of bug: 875739
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