CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, без особени условия, без вход и след действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
libheif is a HEIF and AVIF file format decoder and encoder. From 1.19.0 until 1.23.3, the no-icef full-item branch of unc_decoder::get_compressed_image_data_uncompressed() in libheif/codecs/uncompressed/unc_decoder.cc retains an addition-based range check that can wrap when a crafted uncompressed tile grid produces a large range_start_offset and range_size. The overflow makes the bounds comparison pass and allows heif_image_handle_decode_image_tile() to call memcpy() with an invalid source pointer and a very large length when decoding a valid high-index advertised tile. This incomplete remediation of CVE-2026-62292 can reliably crash tile-processing applications, while whole-image decoding is not claimed to reach the demonstrated path. This issue is fixed in version 1.23.3.
Засегнати продукти
- strukturag libheif: >= 1.19.0, < 1.23.3
Вид слабост
История
- 18 септември 2026 Публикувано
Други уязвимости в strukturag libheif
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-84451
- https://nvd.nist.gov/vuln/detail/CVE-2026-84451
- https://github.com/strukturag/libheif/security/advisories/GHSA-hh47-fhqr-cj2r
- https://github.com/strukturag/libheif/commit/8bfed9a9ed008e4ef28abc736284a90d3cba754f
- https://github.com/strukturag/libheif/releases/tag/v1.23.3