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Limit numeric token length during parsing #1030

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Limit numeric token length during parsing #1030

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4 changes: 4 additions & 0 deletions cJSON.c
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Original file line number Diff line number Diff line change
Expand Up @@ -351,6 +351,10 @@ static cJSON_bool parse_number(cJSON * const item, parse_buffer * const input_bu
default:
goto loop_end;
}
if (number_string_length > CJSON_NUMBER_LENGTH_LIMIT)
{
return false;
}
}
loop_end:
/* malloc for temporary buffer, add 1 for '\0' */
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4 changes: 4 additions & 0 deletions cJSON.h
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Expand Up @@ -99,6 +99,10 @@ then using the CJSON_API_VISIBILITY flag to "export" the same symbols the way CJ
#define cJSON_IsReference 256
#define cJSON_StringIsConst 512

#ifndef CJSON_NUMBER_LENGTH_LIMIT
#define CJSON_NUMBER_LENGTH_LIMIT 512
#endif

/* The cJSON structure: */
typedef struct cJSON
{
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