MFSA2017-17 Thunderbird: Security vulnerabilities fixed in Thunderbird 52.2 (CVE-2017-7778)

A number of security vulnerabilities in the Graphite 2 library including out-of-bounds reads, buffer overflow reads and writes, and the use of uninitialized memory. These issues were addressed in Graphite 2 version 1.3.10. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.