CVE-2020-11558

An issue was discovered in libgpac.a in GPAC 0.8.0, as demonstrated by MP4Box. audiosampleentryRead in isomedia/boxcodebase.c does not properly decide when to make gfisomboxdel calls. This leads to various use-after-free outcomes involving mdiaRead, gfisomdeletemovie, and gfisomparsemovieboxes...