The function MP4Free() in mp4property.cpp in libmp4v2 2.1.0 internally calls free() on a invalid pointer, raising a SIGABRT signal.

The function mp4v2::impl::MP4Track::FinishSdtp() in mp4track.cpp in libmp4v2 2.1.0 mishandles compatibleBrand while processing a crafted mp4 file, which leads to a heap-based buffer over-read, causing denial of service.

MP4Integer32Property::Read in atomavcC.cpp in MP4v2 2.1.0 allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted MP4 file.