Transaction-Relay Jamming via Off-Chain Protocol Attack
CVE-2024-55563

5.3MEDIUM

Key Information:

Vendor

Bitcoin Core

Status
Bitcoin Core
Vendor
CVE Published:
9 December 2024

What is CVE-2024-55563?

Bitcoin Core through 27.2 allows transaction-relay jamming via an off-chain protocol attack, a related issue to CVE-2024-52913. For example, the outcome of an HTLC (Hashed Timelock Contract) can be changed because a flood of transaction traffic prevents propagation of certain Lightning channel transactions.

References

https://en.bitcoin.it/wiki/Common_Vulnerabilities_and_Exp...
https://bitcoincore.org
https://delvingbitcoin.org/t/full-disclosure-transaction-...

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

.