There exists one heap buffer overflow in _TIFFmemcpy in tif_unix.c in libtiff 4.0.10, which allows an attacker to cause a denial-of-service through a crafted tiff file. CREATE(Triage):(User=admin) CVE-2020-18768 (https://nvd.nist.gov/vuln/detail/CVE-2020-18768)
