CVE-2022-29219 – Integer Overflow in Lodestar

https://notcve.org/view.php?id=CVE-2022-29219

Lodestar is a TypeScript implementation of the Ethereum Consensus specification. Prior to version 0.36.0, there is a possible consensus split given maliciously-crafted `AttesterSlashing` or `ProposerSlashing` being included on-chain. Because the developers represent `uint64` values as native javascript `number`s, there is an issue when those variables with large (greater than 2^53) `uint64` values are included on chain. In those cases, Lodestar may view valid_`AttesterSlashing` or `ProposerSlashing` as invalid, due to rounding errors in large `number` values. This causes a consensus split, where Lodestar nodes are forked away from the main network. • https://github.com/ChainSafe/lodestar/pull/3977 https://github.com/ChainSafe/lodestar/releases/tag/v0.36.0 https://github.com/ChainSafe/lodestar/security/advisories/GHSA-cvj7-5f3c-9vg9 • CWE-190: Integer Overflow or Wraparound •