Nervos CKB P2P DoS Attacks
Priority LOW 38Published · Updated
Key facts
- Attack vector
- —
- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from GitHub.
Summary
The P2P protocols lack of rate limit. For example, in relay protocol, when a node receives a broadcasted `tx_hashes`, it will mark it in memory to avoid duplicated requests. [code → ](https://github.com/nervosnetwork/ckb/blob/26e4837212c392c3c706a0da7a056131fb060433/sync/src/relayer/transactions_process.rs#L67). It is easy to establish a DoS attach by generating random tx hashes. ### Impact It affects all nodes connected to the P2P network. ### Workarounds Apply rate limit on the data sent to CKB P2P port.
Why it matters now
Fix Fixed ckb (crates.io): 0.34.0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | ckb (crates.io) | before 0.34.0 | 0.34.0 | Patch available | GHSA-84x2-2qv6-qg56 |
- ckb (crates.io) Vendor— Affected before 0.34.0 Fixed in 0.34.0 Patch available GHSA-84x2-2qv6-qg56
Remediation
- Fix · GHSA-84x2-2qv6-qg56 ckb (crates.io) Fixed in 0.34.0 Advisory →
Timeline
- 2026-10-03 Threatist record created from GHSA-84x2-2qv6-qg56
References
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences