CWE-763
Release of Invalid Pointer or Reference
Description
The product attempts to return a memory resource to the system, but it calls the wrong release function or calls the appropriate release function incorrectly.
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Parent Weaknesses (ChildOf)
Common Consequences
Scope
Impact
Modify Memory, DoS: Crash, Exit, or Restart, Execute Unauthorized Code or Commands
Potential Mitigations
Only call matching memory management functions. Do not mix and match routines. For example, when you allocate a buffer with malloc(), dispose of the original pointer with free().
When programming in C++, consider using smart pointers provided by the boost library to help correctly and consistently manage memory.
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. For example, glibc in Linux provides protection against free of invalid pointers.
Use a language that provides abstractions for memory allocation and deallocation.
CVE-2019-11930function "internally calls 'calloc' and returns a pointer at an index... inside the allocated buffer. This led to freeing invalid memory."
Applicable Platforms
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