8 results · Feed
-
High 7.5CVE-2026-50142 Public exploit
libheif: unbounded heap allocation in HEIF sequence parser (stsz fixed-size mode missing bound check)
libheif is a HEIF and AVIF file format decoder and encoder. From 1.19.0 until 1.23.0, a crafted HEIF sequence accepted by heif_context_read_from_memory() with the msf1 sequence brand can cause unbounded heap allocation. In libheif/sequences/seq_boxes.cc, Box_…
-
High 8.8CVE-2026-32740 Public exploit
libheif: Heap-Buffer-Overflow Write in Grid Tile Chroma Compositing
libheif is a HEIF and AVIF file format decoder and encoder. Versions 1.21.2 and prior contain a heap-buffer-overflow (write) vulnerability in the grid tile compositing, allowing an attacker to write 64 bytes of fully attacker-controlled data past the end of a…
-
Medium 6.5
libheif is Vulnerable to Infinite Loop DoS via stts Sample Duration Lookup
libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and below, a crafted 800-byte HEIF sequence file causes an infinite loop in Box_stts::get_sample_duration(), consuming 100% CPU indefinitely with zero progress, leading to DoS. The…
-
Medium 6.5
libheif has a Heap OOB Read/SEGV Crash via Zero samples_per_chunk
libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and below, a crafted 792-byte HEIF sequence file with samples_per_chunk=0 in the stsc box causes an unsigned integer underflow in the Chunk constructor (m_last_sample = 0 + 0 - 1 =…
-
Medium 6.5
libheif has Potential Heap Buffer Over-Read
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 (likel…
-
Unscored —
libheif v1.17.5 was discovered to contain a segmentation violation via the function find_exif_tag at /libheif/exif.cc.
-
Unscored —
libheif v1.17.5 was discovered to contain a segmentation violation via the component /libheif/exif.cc.
-
Unscored —
libheif 1.4.0 has a use-after-free in heif::HeifContext::Image::set_alpha_channel in heif_context.h because heif_contex…