Medium
CVSS: 6.5
libheif is an HEIF and AVIF file format decoder and encoder. Prior to version 1.21.0, a crafted HEIF that exercises the overlay image item path triggers a heap buffer over-read in `HeifPixelImage::overlay()`. The function computes a negativ…
Low
CVSS: 2.9
libheif before 1.19.6 has a NULL pointer dereference in ImageItem_Grid::get_decoder in image-items/grid.cc because a grid image can reference a nonexistent image item.
Low
CVSS: 2.9
libheif before 1.19.6 has a NULL pointer dereference in ImageItem_iden in image-items/iden.cc.
Medium
CVSS: 6.2
Buffer Overflow vulnerability in libheif 1.19.7 allows a local attacker to execute arbitrary code via the SAO (Sample Adaptive Offset) processing of libde265.