CWE-14—Compiler Removal of Code to Clear Buffers

Weakness Name

Compiler Removal of Code to Clear Buffers

Description

Sensitive memory is cleared according to the source code, but compiler optimizations leave the memory untouched when it is not read from again, aka "dead store removal."

This compiler optimization error occurs when:

Common Consequences

Scope:

Confidentiality, Access Control

Impact:

Read Memory, Bypass Protection Mechanism

Notes:

This weakness will allow data that has not been cleared from memory to be read. If this data contains sensitive password information, then an attacker can read the password and use the information to bypass protection mechanisms.

Related Weaknesses

• CWE-733Compiler Optimization Removal or Modification of Security-critical Code