提出 #755224: libvips (libvips project) libvips 8.19.0 Integer Overflow to Buffer Overflow情報

タイトルlibvips (libvips project) libvips 8.19.0 Integer Overflow to Buffer Overflow
説明In vips_source_read_to_memory() (called via vips_source_map()), a 64-bit source->length is used to size a GByteArray via g_byte_array_set_size() (32-bit guint). For sources larger than G_MAXUINT (>4GiB), the allocation truncates but the subsequent read loop writes up to the full 64-bit length, causing a heap-buffer-overflow. Triggered when libvips processes a seekable VipsSource with length >4GiB and uses the read-to-memory fallback (e.g., when mmap() is unavailable/fails).
ソース⚠️ https://github.com/libvips/libvips/issues/4857
ユーザー
 Niebelungen (UID 95430)
送信2026年02月10日 09:52 (2 月 ago)
モデレーション2026年02月20日 21:21 (10 days later)
ステータス承諾済み
VulDBエントリ347222 [libvips 迄 8.19.0 libvips/iofuncs/source.c vips_source_read_to_memory メモリ破損]
ポイント20

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