Buffer Under-read
The product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations prior to the targeted buffer.
This typically occurs when the pointer or its index is decremented to a position before the buffer, when pointer arithmetic results in a position before the beginning of the valid memory location, or when a negative index is used. This may result in exposure of sensitive information or possibly a crash.
Impact: Read Memory
Impact: Bypass Protection Mechanism
By reading out-of-bounds memory, an attacker might be able to get secret values, such as memory addresses, which can bypass protection mechanisms such as ASLR in order to improve the reliability and likelihood of exploiting a separate weakness to achieve code execution instead of just denial of service.
ID : DX-100
In the following code, the method retrieves a value from an array at a specific array index location that is given as an input parameter to the methodCode Example:
c// check that the array index is less than the maximum*
ccCode Example:
c// check that the array index is within the correct*
c- Memory Management
- Memory
- PLOVER
- Software Fault Patterns