Validation of `VoteExtensionsEnableHeight` can cause chain halt in Go package github.com/cometbft/cometbft

Summary A vulnerability in CometBFT’s validation logic for VoteExtensionsEnableHeight can result in a chain halt when triggered through a governance parameter change proposal on an ABCI2 Application Chain. If a parameter change proposal including a VoteExtensionsEnableHeight modification is passe...