CVE-2026-47714: Libheif: tamsayı taşması

Açıklama (NVD)

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and prior, the inline mask parsing code in `libheif/region.cc` contains an integer overflow. Both `width` and `height` are `unsigned int` (32-bit) values parsed from the HEIF file. Their product can exceed `UINT32_MAX`, wrapping to a small value before the division by 8. This causes an undersized buffer allocation, leading to out-of-bounds memory access when the mask data is later interpreted as a `width x height` bitmap. Version 1.22.0 patches the issue.

Özet bilgiler

Ürün

Struktur Libheif

CVSS v3.1

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

EPSS

%0,15 (yüzdelik 4)

CWE

CWE-190

Yama

Geçici çözüm

Etkilenen sürümler

Kaynaklar

• NVD kaydı
• github.com
• CWE-190