libheif is a HEIF and AVIF file format decoder and encoder. Versions 1.19.0 through 1.21.2 have a heap OOB read in ImageItem_Grid::decode_grid_tile via irot-induced tile-coordinate underflow. Version 1.22.0 fixes the issue.
Exploitability
AV:NAC:LPR:NUI:RScope
S:UImpact
C:LI:NA:H7.1/CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:HMemory Safety
Other