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djvulibre.19760
djvulibre-CVE-2021-32493.patch
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File djvulibre-CVE-2021-32493.patch of Package djvulibre.19760
Index: djvulibre-3.5.27/libdjvu/GBitmap.cpp =================================================================== --- djvulibre-3.5.27.orig/libdjvu/GBitmap.cpp 2021-05-12 11:00:00.612025762 +0200 +++ djvulibre-3.5.27/libdjvu/GBitmap.cpp 2021-05-12 11:00:00.684026181 +0200 @@ -69,6 +69,7 @@ #include <stddef.h> #include <stdlib.h> #include <string.h> +#include <climits> // - Author: Leon Bottou, 05/1997 @@ -1282,6 +1283,8 @@ GBitmap::decode(unsigned char *runs) // initialize pixel array if (nrows==0 || ncolumns==0) G_THROW( ERR_MSG("GBitmap.not_init") ); + if (ncolumns > USHRT_MAX - border) + G_THROW("GBitmap: row size exceeds maximum (corrupted file?)"); bytes_per_row = ncolumns + border; if (runs==0) G_THROW( ERR_MSG("GBitmap.null_arg") );
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