Security update for libass
This update for libass fixes the following issues:
- Fixed situations that could cause uninitialised memory to be used, leading
to undefined behaviour.
(boo#1002982, CVE-2016-7969, CVE-2016-7972)
- Submitted by Tomáš Chvátal (scarabeus_iv)
Fixed bugs
bnc#1002982
VUL-0: CVE-2016-7969, CVE-2016-7970, CVE-2016-7971, CVE-2016-7972: libass: multiple memory management issues