Description (CNA)
libheif is a HEIF and AVIF file format decoder and encoder. In 1.23.0 and earlier, a crafted HEIF sequence accepted by heif_context_read_from_memory() can leave the context with no registered sequence tracks and crash when heif_context_get_track(ctx, 0) is called. HeifContext::get_track() in libheif/context.cc executes assert(has_sequence()) before its normal error handling, so assert-enabled builds abort instead of allowing the public wrapper in libheif/api/libheif/heif_sequences.cc to return null. In release builds, removing the assertion lets the track_id zero path dereference m_tracks.begin()->second on an empty map, which is undefined behavior and typically crashes. The issue is reachable through documented public APIs after parsing attacker-controlled bytes. This issue is fixed in version 1.23.1.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| strukturag / libheif | affected < 1.23.1 |
CWE
CWE-617, CWE-908
References
- https://github.com/strukturag/libheif/security/advisories/GHSA-9ww4-9v47-m7pj
- https://github.com/strukturag/libheif/issues/1844
- https://github.com/strukturag/libheif/commit/e1a0bc1c1ae74f8075eaca30a1cdb2b9bee698d3
- https://github.com/strukturag/libheif/releases/tag/v1.23.1
ADP enrichment
No English description supplied.
No references supplied.