bitcoin-dev
Full Disclosure: CVE-2023-40231 / CVE-2023-40232 / CVE-2023-40233 / CVE-2023-40234 "All your mempool are belong to us"
Original Postby Matt Corallo
Posted on: October 21, 2023 01:03 UTC
The email from Peter Todd discusses the use of anchor outputs to address issues with edge cases and the fee-inflation attack.
By removing the pre-set feerate, the broadcaster can choose which transaction to broadcast without reintroducing these issues. However, Todd expresses skepticism about using multiple pre-signed transactions due to the potential for increased fee overhead and the difficulty in keeping track of different variants across granular feerates. He believes that this is a policy bug that should be fixed at the policy/Bitcoin Core layer rather than in the lightning world.