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CVE-2026-84449

3.7 Faible

Publiée le 18/09/2026 à 18:17 · Modifiée le 22/09/2026 à 17:17 · Analyse NVD reportée · Source : security-advisories@github.com

Description

libheif is a HEIF and AVIF file format decoder and encoder. Prior to 1.19.6, Op_RGB24_32_to_YCbCr::convert_colorspace() stores image-plane strides in an integer width that can overflow for extremely large RGB images created through heif_image_create() and heif_image_add_plane(). The resulting wrapped stride causes the conversion loop in libheif/color-conversion/rgb2yuv.cc to compute an invalid input pointer and read beyond the allocated interleaved plane while heif_context_encode_image() performs RGB-to-YCbCr conversion. This can crash the encoding process. This issue is fixed in version 1.19.6.

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Produits concernés

Scores CVSS

VersionScoreSourceVecteur
3.1 3.7 Faible security-advisories@github.com CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

Faiblesses (CWE)

Références

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