libical: Stack buffer overflow in icalrecur_add_bydayrules in icalrecur.c

A flaw in Thunderbird's implementation of iCal causes a stack buffer overflow in icalrecuraddbydayrules when processing certain email messages, resulting in a potentially exploitable crash. This vulnerability affects Thunderbird 60.7.1...

FreeBSD : Mozilla -- multiple vulnerabilities (98f1241f-8c09-4237-ad0d-67fb4158ea7a)

Mozilla Foundation reports : CVE-2019-11703: Heap buffer overflow in icalparser.c A flaw in Thunderbird's implementation of iCal causes a heap buffer overflow in parsergetnextchar when processing certain email messages, resulting in a potentially exploitable crash. CVE-2019-11704: Heap buffer...