Out-of-bounds Write Affecting libheif-debuginfo package, versions <0:1.19.8-1.amzn2023.0.6


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.2% (10th percentile)

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  • Snyk IDSNYK-AMZN2023-LIBHEIFDEBUGINFO-17887574
  • published8 Jul 2026
  • disclosed21 Jul 2026

Introduced: 8 Jul 2026

NewCVE-2026-47178  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 libheif-debuginfo to version 0:1.19.8-1.amzn2023.0.6 or higher.
This issue was patched in ALAS2023-2026-1919.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libheif-debuginfo package and not the libheif-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.19.0 through 1.21.2, a crafted HEIF file (uncompressed unci codec, tiled, component-interleaved, 4:2:0) triggers a heap out-of-bounds write in libheif's uncompressed tile decoder. The write overwrites the C++ vtable pointer of an adjacent unc_decoder_component_interleave object; the next virtual call dispatches to an attacker-chosen address. Version 1.22.0 patches the issue.

CVSS Base Scores

version 3.1