CyberRota Analysis
AI-GeneratedAn integer overflow vulnerability in the BlockServiceImpl.applyBlock() function of Signum Node prior to version 3.9.9 allows miners to exploit a negative totalFeeCashBackNqt value, resulting in inflated block rewards. This flaw, introduced during the SMART_FEES hardfork, poses a significant risk to the integrity of the cryptocurrency's reward system. Cryptocurrency miners and operators using affected versions should prioritize updating to version 3.9.9 to mitigate this high-severity risk.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
Signum Node is a HDD-mined cryptocurrency using an energy efficient and fair Proof-of-Commitment (PoC+) consensus algorithm. Prior to version 3.9.9, an integer overflow in BlockServiceImpl.applyBlock() allowed a miner to receive an arbitrarily inflated block reward by crafting a block with a negative totalFeeCashBackNqt value. The vulnerability was introduced when the SMART_FEES hardfork (block ~1,029,000) enabled fee cash-back and burn accounting without overflow protection. This issue has been patched in version 3.9.9.