#bitcoin-core-dev on 2022-06-26 — searchable irc log

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15:02 <bitcoin-git> [bitcoin] fjahr opened pull request #25476: test: Remove unnecessary block mining from importdescriptors test (master...2022-06-importdesctest) https://github.com/bitcoin/bitcoin/pull/25476

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18:20 <bytes1440000> ariard: re: full rbf and related pull requests in bitcoin core

18:20 <bytes1440000> Based on the steps shared in https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2022-June/020595.html I tried a few things and think almost all types of coinjoin are vulnerable to this type of attacks.

18:20 <bytes1440000> In Wasabi an attacker could broadcast tx spending input registered for coinjoin after sending signature in round. This would result in coinjoin tx not getting relayed. Not sure what different coinjoin implementations think about full-rbf. I believe it might improve things and introduce new bugs in different projects over time. Not sure.

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21:07 <ariard> bytes1440000: Yes i've seen and replied to the offline mails where you're demoing the attacks, it's interesting to know they're that much practical, i hope it will raises awareness among the coinjoin team

21:08 <ariard> as a side-note, even if the attacks are just Dos and not super severe, it's always good to report the issue to the vendor first before to state that a given project/codebase is vulnerable

21:08 <ariard> people can get grumpy quickly sometimes :/

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