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home:Alexander_Naumov:SLE-12:Update
ImageMagick.17345
ImageMagick-CVE-2020-25664.patch
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File ImageMagick-CVE-2020-25664.patch of Package ImageMagick.17345
Index: ImageMagick-6.8.8-1/coders/png.c =================================================================== --- ImageMagick-6.8.8-1.orig/coders/png.c 2020-12-08 14:39:53.538073552 +0100 +++ ImageMagick-6.8.8-1/coders/png.c 2020-12-08 14:41:59.298913125 +0100 @@ -11041,11 +11041,11 @@ static MagickBooleanType WriteOnePNGImag (void) LogMagickEvent(CoderEvent,GetMagickModule(), " Allocating %.20g bytes of memory for pixels",(double) rowbytes); } - pixel_info=AcquireVirtualMemory(rowbytes,sizeof(*ping_pixels)); + pixel_info=AcquireVirtualMemory(rowbytes+256,sizeof(*ping_pixels)); if (pixel_info == (MemoryInfo *) NULL) png_error(ping,"Allocation of memory for pixels failed"); ping_pixels=(unsigned char *) GetVirtualMemoryBlob(pixel_info); - + (void) memset(ping_pixels,0,(rowbytes+256)*sizeof(*ping_pixels)); /* Initialize image scanlines. */
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