CVE-2025-68431
Gravedad CVSS v3.1:
MEDIA
Tipo:
CWE-125
Lectura fuera de límites
Fecha de publicación:
29/12/2025
Última modificación:
29/12/2025
Descripción
*** Pendiente de traducción *** 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 negative row length (likely from an unclipped overlay rectangle or invalid offsets), which then underflows when converted to `size_t` and is passed to `memcpy`, causing a very large read past the end of the source plane and a crash. Version 1.21.0 contains a patch. As a workaround, avoid decoding images using `iovl` overlay boxes.
Impacto
Puntuación base 3.x
6.50
Gravedad 3.x
MEDIA