An issue was discovered in function latm_write_packet in libavformat/latmenc.c in Ffmpeg 4.2.1, allows attackers to cause a Denial of Service or other unspecified impacts due to a Null pointer dereference. CREATE(Triage):(User=admin) CVE-2020-20896 (https://nvd.nist.gov/vuln/detail/CVE-2020-20896)