CVE-2026-49271: Libheif: sınır dışı okuma

Açıklama (NVD)

libheif is a HEIF and AVIF file format decoder and encoder. Prior to version 1.22.1, the uncompressed HEIF decoder validates explicit icef compressed-unit offsets using unit_offset + unit_size. Because the addition can wrap, a crafted HEIF file can pass the range check and then construct a vector from iterators outside the compressed item buffer, producing an out-of-bounds heap read and crash. Version 1.22.1 patches the issue.

Özet bilgiler

Ürün

Struktur Libheif

CVSS v3.1

6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS

%0,36 (yüzdelik 29)

CWE

CWE-125

Yama

Geçici çözüm

Etkilenen sürümler

Kaynaklar

• NVD kaydı
• github.com
• github.com
• CWE-125