An issue was discovered in function filter_frame in libavfilter/vf_lenscorrection.c in Ffmpeg 4.2.1, allows attackers to cause a Denial of Service or other unspecified impacts due to a division by zero. CREATE(Triage):(User=admin) CVE-2020-20892 (https://nvd.nist.gov/vuln/detail/CVE-2020-20892)