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openSUSE:Step:15
tiff.22196
tiff-CVE-2018-17100.patch
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File tiff-CVE-2018-17100.patch of Package tiff.22196
Index: tiff-4.0.9/tools/ppm2tiff.c =================================================================== --- tiff-4.0.9.orig/tools/ppm2tiff.c 2018-10-17 12:25:05.271940872 +0200 +++ tiff-4.0.9/tools/ppm2tiff.c 2018-10-17 12:26:15.468262130 +0200 @@ -72,15 +72,16 @@ BadPPM(char* file) exit(-2); } + +#define TIFF_SIZE_T_MAX ((size_t) ~ ((size_t)0)) +#define TIFF_TMSIZE_T_MAX (tmsize_t)(TIFF_SIZE_T_MAX >> 1) + static tmsize_t multiply_ms(tmsize_t m1, tmsize_t m2) { - tmsize_t bytes = m1 * m2; - - if (m1 && bytes / m1 != m2) - bytes = 0; - - return bytes; + if( m1 == 0 || m2 > TIFF_TMSIZE_T_MAX / m1 ) + return 0; + return m1 * m2; } int
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