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CVE-2026-47714

בינונית 6.1

תיאור (מקור, אנגלית)

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.

מדדים

CVSS 3.1
6.1 (MEDIUM) מקור הציון: CNA CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
EPSS — סבירות ניצול
0% (אחוזון 000) נכון ל-1/8/2026
CWE
CWE-190

מוצרים מושפעים

struktur: libheif

קישורים