Out-of-bounds Read Affecting libheif-svtenc package, versions <1.23.5-160000.1.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.42% (35th percentile)

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  • Snyk IDSNYK-SLES1600-LIBHEIFSVTENC-21359332
  • published21 Oct 2026
  • disclosed8 Oct 2026

Introduced: 8 Oct 2026

CVE-2026-84449  (opens in a new tab)
CWE-125  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade SLES:16.0.0 libheif-svtenc to version 1.23.5-160000.1.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libheif-svtenc package and not the libheif-svtenc package as distributed by SLES. See How to fix? for SLES:16.0.0 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1