| Título | libvips 8.19.0(7fab325d2) Integer Overflow or Wraparound |
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| Descrição | In `libvips/conversion/extract.c`, function `vips_extract_area_build()` uses signed additions (`left + width`, `top + height`) in bounds checks. Large attacker-controlled coordinates can overflow and bypass validation. `vips_extract_area_gen()` propagates these unchecked offsets into region copy preparation, reaching invalid `memcpy` paths via `vips_region_copy`. The issue is reachable through normal `vips extract_area` CLI usage (with `--vips-max-coord` set high) and is reproducible with ASAN as `SEGV`. |
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| Fonte | ⚠️ https://github.com/libvips/libvips/issues/4879 |
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| Utilizador | Niebelungen (UID 95430) |
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| Submissão | 15/02/2026 16h03 (há 4 meses) |
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| Moderação | 26/02/2026 17h33 (11 days later) |
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| Estado | Aceite |
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| Entrada VulDB | 348013 [libvips 8.19.0 extract.c vips_extract_area_build extract_area Excesso de tampão] |
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| Pontos | 20 |
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