balance-handling

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vulnerability

Security researcher discovered two critical bugs in Sei Network's layer-1 blockchain: (1) an ABCI panic in the EVM EndBlocker triggered by vesting accounts with locked funds, causing chain halts, and (2) a balance handling vulnerability allowing arbitrary fund transfers via negative number handling in SubBalance/AddBalance functions. Both bugs were caught pre-mainnet and rewarded at $75,000 and $2,000,000 respectively.

Sei Network Sei Foundation Cosmos SDK Geth Trail of Bits Immunefi CVE-2024 (implied, not explicitly stated)
usmannkhan.com · usmannk · 17 hours ago · details