CVEvulnerability

CVE-2026-47254

6.1 MEDIUM Published 2026-07-21 Modified 2026-10-24 Official page ↗
Status
Analyzed
Published
2026-07-21
Last modified
2026-10-24
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.1 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Weaknesses
CWE-125

Description

libheif is a HEIF and AVIF file format decoder and encoder. Prior to version 1.22.0, `Track::init_sample_timing_table()` in `libheif/sequences/track.cc` stores an out-of-bounds chunk index (`m_chunks.size()`) into `m_presentation_timeline` when the number of chunks defined in the `stco` box is less than the number of samples in `stsz`. A subsequent call to `heif_track_get_next_raw_sequence_sample()` reads `m_chunks[chunk_idx]` with that OOB index, causing a heap-buffer-overflow. Version 1.22.0 fixes the issue.

Affected configurations

• struktur libheif (< 1.22.0)

Related

Weakness · CWE (1)

  • CWE-125 Out-of-bounds Read weakness

References