| id: GO-2023-1883 |
| modules: |
| - module: github.com/cometbft/cometbft |
| versions: |
| - fixed: 0.37.2 |
| vulnerable_at: 0.37.1 |
| packages: |
| - package: github.com/cometbft/cometbft/mempool/v0 |
| symbols: |
| - CListMempool.resCbFirstTime |
| derived_symbols: |
| - CListMempool.CheckTx |
| - Reactor.ReceiveEnvelope |
| summary: Denial of service via OOM in github.com/cometbft/cometbft |
| description: |- |
| A bug in the CometBFT middleware causes the mempool's two data structures to |
| fall out of sync. This can lead to duplicate transactions that cannot be |
| removed, even after they are committed in a block. The only way to remove |
| the transaction is to restart the node. This can be exploited by an attacker |
| to bring down a node by repeatedly submitting duplicate transactions. |
| cves: |
| - CVE-2023-34451 |
| ghsas: |
| - GHSA-w24w-wp77-qffm |
| references: |
| - advisory: https://github.com/cometbft/cometbft/security/advisories/GHSA-w24w-wp77-qffm |
| - fix: https://github.com/cometbft/cometbft/pull/890 |
| - fix: https://github.com/tendermint/tendermint/pull/2778 |
| notes: |
| - The advisory refers to versions beginning 0.34. The module at those versions requires a replace directive to be usable. There is a fix in 0.34.28. |
