Description (CNA)
libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and prior, a malformed HEIF sequence file can trigger an out-of-bounds read in core sequence parsing logic, causing DoS. A malformed file can have stco.entry_count == 0 (creating no chunks) while still passing validation because saio.entry_count == 0 matches, but with saiz.sample_count > 0 the SampleAuxInfoReader constructor still enters its loop. This leads to an out-of-bounds dereference on the empty chunks[0] in chunked mode.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| strukturag / libheif | affected < 1.22.0 |
CWE
CWE-125, CWE-476
References
- https://github.com/strukturag/libheif/security/advisories/GHSA-p82x-fpmv-576r
- https://github.com/strukturag/libheif/releases/tag/v1.22.0
ADP enrichment
No English description supplied.