| शीर्षक | libvips 8.19.0(7fab325d2) Integer Overflow or Wraparound |
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| विवरण | In `libvips/conversion/extract.c`, function `vips_extract_band_build()` validates range using signed addition (`extract->band + extract->n > bands`). Large attacker-controlled values can overflow signed `int` and bypass this check. `vips_extract_band_buffer()` then computes `p = in[0] + extract->band * es` and dereferences the invalid pointer in the copy loop, causing out-of-bounds read and crash. The issue is reachable from normal `vips extract_band` CLI usage (with `--vips-max-coord` set high) and is reproducible with ASAN (`SEGV` at `extract.c:378`). |
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| स्रोत | ⚠️ https://github.com/libvips/libvips/issues/4880 |
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| उपयोगकर्ता | Niebelungen (UID 95430) |
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| सबमिशन | 15/02/2026 04:02 PM (4 महीनों पहले) |
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| संयम | 26/02/2026 05:33 PM (11 days later) |
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| स्थिति | स्वीकृत |
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| VulDB प्रविष्टि | 348012 [libvips 8.19.0 extract.c vips_extract_band_build extract_band सूचना का प्रकटीकरण] |
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| अंक | 20 |
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