How severe is GHSA-84x2-2qv6-qg56?

No CVSS score has been assigned to GHSA-84x2-2qv6-qg56 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by GHSA-84x2-2qv6-qg56?

GHSA-84x2-2qv6-qg56 affects the following packages: ckb (crates.io). Ecosystems affected: crates.io.

How do I fix GHSA-84x2-2qv6-qg56?

Update ckb to 0.34.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-84x2-2qv6-qg56 is resolved across your whole dependency graph.

How do I detect GHSA-84x2-2qv6-qg56 in my crates.io dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for ckb, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate GHSA-84x2-2qv6-qg56 if there is no patch (or I can't update yet)?

Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Is GHSA-84x2-2qv6-qg56 actively exploited in the wild?

No public exploit code has been indexed for GHSA-84x2-2qv6-qg56 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

When was GHSA-84x2-2qv6-qg56 published, and has it been updated?

GHSA-84x2-2qv6-qg56 was published on February 2, 2024. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🦀 crates.io

Not in CISA KEV

Nervos CKB P2P DoS AttacksGHSA-84x2-2qv6-qg56

Fix: nervosnetwork/ckb@c5eb547

GHSA-84x2-2qv6-qg56 is a security vulnerability in ckb. A fix is available for ckb — see the affected versions and patch details below.

Published

Feb 2, 2024

Updated

Feb 2, 2024

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Feb 2, 2024 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected

🦀ckb

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects crates.io packages — download data is not available via public APIs for these ecosystems.

Description

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 → .

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.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🦀crates.io	`ckb`	all versions	0.34.0`cargo update -p ckb --precise 0.34.0`

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for ckb, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update ckb to 0.34.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-84x2-2qv6-qg56 is resolved across your whole dependency graph.
Workarounds
Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Frequently Asked Questions

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.

O3 Security · Impact-Aware SCA

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