PT-2026-49253 · Julia · Libheif Jll

Publicado 2026-06-05 · Atualizado 2026-06-05

OSV

CVSS v3.1

6.5

Média

Vetor base

AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

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 = UINT32 MAX), mapping all samples to an empty chunk and resulting in a denial of service. When any sample is accessed, the library reads from index 0 of an empty std::vector, causing a guaranteed SEGV (null-page read). The file parses successfully without producing an error; the crash occurs on the first frame access. This issue has been fixed in version 1.22.0.

Correção

Identificadores relacionados

JLSEC-2026-570

Produtos afetados

Libheif Jll

Referências · 2

• https://github.com/strukturag/libheif/security/advisories/GHSA-7f2h-cmpf-v9ww · Nota
• https://osv.dev/vulnerability/JLSEC-2026-570 · Aviso do Fabricante