Medium severity · published Dec 9, 2024
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
5.3
CVSS
0.7%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BC
Bitcoin Core · Bitcoin
through 27.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-55563
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-55563
Third Party Advisory
https://ariard.github.io
Product
https://bitcoincore.org
Issue Tracking
https://delvingbitcoin.org/t/full-disclosure-transaction-relay-throughput-overflow-attacks-against-off-chain-protocols/1305
Third Party Advisory
https://en.bitcoin.it/wiki/Common_Vulnerabilities_and_Exposures
Mailing List
https://gnusha.org/pi/bitcoindev/CALZpt+EptER=p+P7VN3QAb9n=dODA9_LnR9xZwWpRsdAwedv=w@mail.gmail.com/T/#u
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