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ImageMagick.7150
ImageMagick-CVE-2014-9822.patch
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File ImageMagick-CVE-2014-9822.patch of Package ImageMagick.7150
--- a/magick/quantum.c +++ b/magick/quantum.c @@ -645,8 +645,9 @@ MagickExport void SetQuantumAlphaType(QuantumInfo *quantum_info, MagickExport MagickBooleanType SetQuantumDepth(const Image *image, QuantumInfo *quantum_info,const size_t depth) { - MagickBooleanType - status; + size_t + extent, + quantum; /* Allocate the quantum pixel buffer. @@ -670,9 +671,11 @@ MagickExport MagickBooleanType SetQuantumDepth(const Image *image, } if (quantum_info->pixels != (unsigned char **) NULL) DestroyQuantumPixels(quantum_info); - status=AcquireQuantumPixels(quantum_info,(6+quantum_info->pad)*image->columns* - ((quantum_info->depth+7)/8)); /* allow for CMYKA + RLE byte + pad */ - return(status); + quantum=(quantum_info->pad+6)*(quantum_info->depth+7)/8; + extent=image->columns*quantum; + if (quantum != (extent/image->columns)) + return(MagickFalse); + return(AcquireQuantumPixels(quantum_info,extent)); } /*
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