CVE-2019-17539: In FFmpeg before 4.2, avcodec_open2 in libavcodec/utils.c allows a NUL ...

Severity: Critical

CVSS Score: 9.8

In FFmpeg before 4.2, avcodec_open2 in libavcodec/utils.c allows a NULL pointer dereference and possibly unspecified other impact when there is no valid close function pointer.