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openSUSE:Step:15-SP4
ImageMagick.28258
ImageMagick-CVE-2020-27760.patch
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File ImageMagick-CVE-2020-27760.patch of Package ImageMagick.28258
Index: ImageMagick-7.0.7-34/MagickCore/enhance.c =================================================================== --- ImageMagick-7.0.7-34.orig/MagickCore/enhance.c 2020-12-04 10:01:00.499815906 +0100 +++ ImageMagick-7.0.7-34/MagickCore/enhance.c 2020-12-04 10:01:00.919818583 +0100 @@ -1806,7 +1806,7 @@ MagickExport MagickBooleanType GammaImag if (gamma != 0.0) for (i=0; i <= (ssize_t) MaxMap; i++) gamma_map[i]=ScaleMapToQuantum((double) (MaxMap*pow((double) i/ - MaxMap,1.0/gamma))); + MaxMap,PerceptibleReciprocal(gamma)))); if (image->storage_class == PseudoClass) for (i=0; i < (ssize_t) image->colors; i++) { @@ -2347,7 +2347,7 @@ static inline double LevelPixel(const do scale=PerceptibleReciprocal(white_point-black_point); level_pixel=QuantumRange*gamma_pow(scale*((double) pixel-black_point), - 1.0/gamma); + PerceptibleReciprocal(gamma)); return(level_pixel); }
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