CWE: 252 Unchecked Return Value Sinks: snprintf GoodSink: Check if snprintf() fails BadSink : Do not check if snprintf() fails Flow Variant: 15 Control flow: switch(6)

CWE: 252 Unchecked Return Value Sinks: puts GoodSink: Check if puts() fails BadSink : Do not check if puts() fails Flow Variant: 14 Control flow: if(globalFive==5) and if(globalFive!=5)

CWE: 197 Numeric Truncation Error BadSource: connect_socket Read data using a connect socket (client side) GoodSource: Less than CHAR_MAX Sink: BadSink : Convert data to a char Flow Variant: 54 Data flow: data passed as an argument from one function through three others to a fifth; all five ...

CWE: 195 Signed to Unsigned Conversion Error BadSource: rand Set data to result of rand(), which may be zero GoodSource: Positive integer Sink: memmove BadSink : Copy strings using memmove() with the length of data Flow Variant: 01 Baseline

CWE: 194 Unexpected Sign Extension BadSource: listen_socket Read data using a listen socket (server side) GoodSource: Positive integer Sinks: memmove BadSink : Copy strings using memmove() with the length of data Flow Variant: 63 Data flow: pointer to data passed from one function to another...

CWE: 190 Integer Overflow BadSource: max Set data to the max value for unsigned int GoodSource: Set data to a small, non-zero number (two) Sinks: multiply GoodSink: Ensure there will not be an overflow before multiplying data by 2 BadSink : If data is positive, multiply by 2, which can cause...

CWE: 190 Integer Overflow BadSource: max Set data to the max value for unsigned int GoodSource: Set data to a small, non-zero number (two) Sinks: add GoodSink: Ensure there will not be an overflow before adding 1 to data BadSink : Add 1 to data, which can cause an overflow Flow Variant: 66 ...

CWE: 190 Integer Overflow BadSource: rand Set data to result of rand() GoodSource: Set data to a small, non-zero number (two) Sinks: add GoodSink: Ensure there will not be an overflow before adding 1 to data BadSink : Add 1 to data, which can cause an overflow Flow Variant: 51 Data flow: da...

CWE: 190 Integer Overflow BadSource: rand Set data to result of rand() GoodSource: Set data to a small, non-zero number (two) Sinks: add GoodSink: Ensure there will not be an overflow before adding 1 to data BadSink : Add 1 to data, which can cause an overflow Flow Variant: 10 Control flow:...

CWE: 190 Integer Overflow BadSource: fscanf Read data from the console using fscanf() GoodSource: Set data to a small, non-zero number (two) Sinks: multiply GoodSink: Ensure there will not be an overflow before multiplying data by 2 BadSink : If data is positive, multiply by 2, which can cau...

CWE: 134 Uncontrolled Format String BadSource: environment Read input from an environment variable GoodSource: Copy a fixed string into data Sinks: printf GoodSink: wprintf with %s as the first argument and data as the second BadSink : wprintf with only data as an argument Flow Variant: 31 ...

CWE: 134 Uncontrolled Format String BadSource: file Read input from a file GoodSource: Copy a fixed string into data Sinks: printf GoodSink: printf with %s as the first argument and data as the second BadSink : printf with only data as an argument Flow Variant: 01 Baseline

CWE: 134 Uncontrolled Format String BadSource: console Read input from the console GoodSource: Copy a fixed string into data Sinks: vprintf GoodSink: vprintf with a format string BadSink : vprintf without a format string Flow Variant: 66 Data flow: data passed in an array from one function ...

CWE: 124 Buffer Underwrite BadSource: Set data pointer to before the allocated memory buffer GoodSource: Set data pointer to the allocated memory buffer Sinks: ncpy BadSink : Copy string to data using strncpy Flow Variant: 63 Data flow: pointer to data passed from one function to another in...

CWE: 124 Buffer Underwrite BadSource: listen_socket Read data using a listen socket (server side) GoodSource: Non-negative but less than 10 Sinks: GoodSink: Ensure the array index is valid BadSink : Improperly check the array index by not checking the lower bound Flow Variant: 42 Data flow:...

CWE: 123 Write-What-Where Condition BadSource: connect_socket Overwrite linked list pointers using a connect socket (client side) GoodSource: Dont overwrite linked list pointers Sinks: BadSink : Remove element from list Flow Variant: 44 Data/control flow: data passed as an argument from one ...

CWE: 121 Stack Based Buffer Overflow BadSource: Initialize data as a large string GoodSource: Initialize data as a small string Sink: ncat BadSink : Copy data to string using strncat Flow Variant: 16 Control flow: while(1)

CWE: 121 Stack Based Buffer Overflow BadSource: Initialize data as a large string GoodSource: Initialize data as a small string Sink: snprintf BadSink : Copy data to string using snprintf Flow Variant: 18 Control flow: goto statements

CWE: 121 Stack Based Buffer Overflow BadSource: Set data pointer to the bad buffer GoodSource: Set data pointer to the good buffer Sinks: ncpy BadSink : Copy string to data using wcsncpy Flow Variant: 45 Data flow: data passed as a static global variable from one function to another in the ...

CWE: 121 Stack Based Buffer Overflow BadSource: Set data pointer to the bad buffer GoodSource: Set data pointer to the good buffer Sink: loop BadSink : Copy int array to data using a loop Flow Variant: 53 Data flow: data passed as an argument from one function through two others to a fourth...

CWE: 121 Stack Based Buffer Overflow BadSource: Set data pointer to the bad buffer GoodSource: Set data pointer to the good buffer Sinks: loop BadSink : Copy string to data using a loop Flow Variant: 64 Data flow: void pointer to data passed from one function to another in different source ...

CWE: 121 Stack Based Buffer Overflow BadSource: Set data pointer to the bad buffer GoodSource: Set data pointer to the good buffer Sink: memcpy BadSink : Copy string to data using memcpy Flow Variant: 52 Data flow: data passed as an argument from one function to another to another in three ...

CWE: 121 Stack Based Buffer Overflow BadSource: Point data to a buffer that does not have space for a NULL terminator GoodSource: Point data to a buffer that includes space for a NULL terminator Sink: memmove BadSink : Copy string to data using memmove() Flow Variant: 15 Control flow: switc...

CWE: 114 Process Control BadSource: listen_socket Read data using a listen socket (server side) GoodSource: Hard code the full pathname to the library Sinks: BadSink : Load a dynamic link library Flow Variant: 31 Data flow using a copy of data within the same function

Buffer Overflow. This code has been donated by MIT. This test case has the following characteristics : write/read = Write, Which bound = Upper, Data type = character, Memory location = stack, Scope = same, Container = no, Pointer = no, Index complexity = constant, Address complexity = con...