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djvulibre
djvulibre-CVE-2021-46310.patch
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File djvulibre-CVE-2021-46310.patch of Package djvulibre
Index: djvulibre-3.5.28/libdjvu/IW44Image.cpp =================================================================== --- djvulibre-3.5.28.orig/libdjvu/IW44Image.cpp +++ djvulibre-3.5.28/libdjvu/IW44Image.cpp @@ -676,10 +676,10 @@ IW44Image::Map::image(signed char *img8, // Allocate reconstruction buffer short *data16; size_t sz = bw * bh; + if (sz == 0) // bw or bh is zero + G_THROW("IW44Image: zero size image (corrupted file?)"); if (sz / (size_t)bw != (size_t)bh) // multiplication overflow G_THROW("IW44Image: image size exceeds maximum (corrupted file?)"); - if (sz == 0) - G_THROW("IW44Image: zero size image (corrupted file?)"); GPBuffer<short> gdata16(data16,sz); if (data16 == NULL) G_THROW("IW44Image: unable to allocate image data");
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