LibTIFF 4.4.0 has an out-of-bounds read in tiffcrop in tools/tiffcrop.c:3488, allowing attackers to cause a denial-of-service via a crafted tiff file. For users that compile libtiff from sources, the fix is available with commit afaabc3e.
Exploitability
AV:LAC:LPR:NUI:NScope
S:UImpact
C:LI:NA:H6.8/CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H