This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-47254 →

DEBIAN-CVE-2026-47254

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.c...

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 libheif

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:14 libheif

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.23.1-1"}]}]

References

advisory security-tracker.debian.org