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ImageMagick.8900
ImageMagick-CVE-2017-18254.patch
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File ImageMagick-CVE-2017-18254.patch of Package ImageMagick.8900
--- a/coders/gif.c +++ b/coders/gif.c @@ -1576,7 +1576,14 @@ static MagickBooleanType WriteGIFImage(const ImageInfo *image_info,Image *image) colormap=(unsigned char *) AcquireQuantumMemory(768UL,sizeof(*colormap)); if ((global_colormap == (unsigned char *) NULL) || (colormap == (unsigned char *) NULL)) - ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); + { + if (global_colormap != (unsigned char *) NULL) + global_colormap=(unsigned char *) RelinquishMagickMemory( + global_colormap); + if (colormap != (unsigned char *) NULL) + colormap=(unsigned char *) RelinquishMagickMemory(colormap); + ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed"); + } for (i=0; i < 768; i++) colormap[i]=(unsigned char) 0; /*
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