CVE-2025-70954
HighSummary
W maszynie wirtualnej TON (TVM) w blockchainie TON przed wersją 2025.06 występuje podatność na dereferencję wskaźnika null. Problem dotyczy logiki wykonania instrukcji INMSGPARAM, gdzie program nie weryfikuje, czy dany wskaźnik jest null przed jego użyciem.
Risk Assessment
Atakujący może wysłać złośliwą transakcję lub inteligentny kontrakt, co prowadzi do awarii procesu węzła walidatora (błąd segmentacji). To skutkuje odmową usługi (DoS), wpływając na dostępność całej sieci blockchain.
Recommendation
Zaleca się aktualizację do wersji 2025.06 lub nowszej, aby usunąć tę podatność. Dodatkowo, warto wdrożyć mechanizmy monitorowania i ochrony przed złośliwymi transakcjami.
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Original NVD description (English source)
A Null Pointer Dereference vulnerability exists in the TON Virtual Machine (TVM) within the TON Blockchain before v2025.06. The issue is located in the execution logic of the INMSGPARAM instruction, where the program fails to validate if a specific pointer is null before accessing it. By sending a malicious transaction or smart contract, an attacker can trigger this null pointer dereference, causing the validator node process to crash (segmentation fault). This results in a Denial of Service (DoS) affecting the availability of the entire blockchain network.