提出 #758864: libvips 8.19.0(7fab325d2) Integer Overflow or Wraparound情報

タイトルlibvips 8.19.0(7fab325d2) Integer Overflow or Wraparound
説明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`.
ソース⚠️ https://github.com/libvips/libvips/issues/4879
ユーザー
 Niebelungen (UID 95430)
送信2026年02月15日 16:03 (4 月 ago)
モデレーション2026年02月26日 17:33 (11 days later)
ステータス承諾済み
VulDBエントリ348013 [libvips 8.19.0 extract.c vips_extract_area_build extract_area メモリ破損]
ポイント20

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