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openSUSE:Step:15-SP4
ImageMagick.17344
ImageMagick-CVE-2020-27770.patch
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File ImageMagick-CVE-2020-27770.patch of Package ImageMagick.17344
Index: ImageMagick-7.0.7-34/MagickCore/string.c =================================================================== --- ImageMagick-7.0.7-34.orig/MagickCore/string.c 2018-05-20 17:55:43.000000000 +0200 +++ ImageMagick-7.0.7-34/MagickCore/string.c 2020-12-09 18:01:18.610591678 +0100 @@ -2670,7 +2670,7 @@ MagickExport MagickBooleanType Substitut { if (search_extent == 0) search_extent=strlen(search); - if (strncmp(p,search,search_extent) != 0) + if ((*p == *search) && (strncmp(p,search,search_extent) != 0)) continue; /* We found a match. @@ -2698,7 +2698,9 @@ MagickExport MagickBooleanType Substitut (void) memmove(p+replace_extent,p+search_extent, strlen(p+search_extent)+1); (void) memcpy(p,replace,replace_extent); - p+=replace_extent-1; + p+=replace_extent; + if (replace_extent != 0) + p--; } return(status); }
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