D3-RN — Reference Nullification
D3-RN: Reference Nullification
MITRE D3FEND countermeasure
What it does
Invalidating all pointers that reference a specific memory block, ensuring that the block cannot be accessed or modified after deallocation.
Attacks this counters
No ATT&CK technique in this corpus maps to this countermeasure. D3FEND may map it to techniques outside the Enterprise matrix, or to ones MITRE has since revoked — absence here is about this corpus, not about the countermeasure.