GHSA-84x2-2qv6-qg56: Ckb Denial of Service Vulnerability

CRITICAL
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Advisory Summary

GHSA-84x2-2qv6-qg56 is a CRITICAL denial of service vulnerability (General Security Weakness) affecting Ckb libraries in the crates.io ecosystem. The issue involves nervos ckb p2p dos attacks. Remediation is available by upgrading affected packages to version 0.34.0.

GHSA-84x2-2qv6-qg56 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-84x2-2qv6-qg56
Severity CRITICAL
CVSS v3.1 Base Score N/A
CWE Classification General Security Weakness
Affected Product Ckb
Package Ecosystem crates.io
Published Date
Last Updated

How to Fix GHSA-84x2-2qv6-qg56

To remediate this vulnerability, upgrade all affected Ckb dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

ckb fixed: 0.34.0 
Upgrade ckb to 0.34.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for ckb

How to Check if You Are Affected

To determine whether your application is affected by GHSA-84x2-2qv6-qg56, inspect your project dependencies for Ckb:

inspect dependencies for ckb

Analyze the terminal output to locate any version of Ckb in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.34.0), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under General Security Weakness. In Ckb, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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.

GHSA-84x2-2qv6-qg56 Affected Ckb Versions

1 component(s)
Fixed Versions:
0.34.0
Product / Package Ecosystem Affected Versions Fixed Version
ckb
 crates.io
< 0.34.0
0.34.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/nervosnetwork/ckb/security/advisories/GHSA-84x2-2qv6-qg56
Security Fix Commit FIX COMMIT
https://github.com/nervosnetwork/ckb/commit/c5eb5478b635cea2ccef8676cf97692cd38293c3

Frequently Asked Questions

What is GHSA-84x2-2qv6-qg56?
GHSA-84x2-2qv6-qg56 is a security vulnerability in Ckb involving Nervos CKB P2P DoS Attacks under General Security Weakness.
Which Ckb versions are affected?
Affected versions include releases prior to 0.34.0 across affected packages: ckb.
What version fixes GHSA-84x2-2qv6-qg56?
Upgrading to 0.34.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is ckb affected?
Yes, ckb is affected in releases prior to 0.34.0. Upgrade your dependency to 0.34.0 or later.
What CWE is associated with GHSA-84x2-2qv6-qg56?
GHSA-84x2-2qv6-qg56 is classified under General Security Weakness.
How can I check crates.io dependencies for GHSA-84x2-2qv6-qg56?
Run the dependency tree command: 'inspect dependencies for ckb'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-84x2-2qv6-qg56",
  "modified" : "2024-02-02T22:21:27Z",
  "published" : "2024-02-02T22:21:27Z",
  "aliases" : [ ],
  "summary" : "Nervos CKB P2P DoS Attacks",
  "details" : "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).\n\nIt is easy to establish a DoS attach by generating random tx hashes.\n\n### Impact\n\nIt affects all nodes connected to the P2P network.\n\n### Workarounds\n\nApply rate limit on the data sent to CKB P2P port.",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "crates.io",
      "name" : "ckb"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.34.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/nervosnetwork/ckb/security/advisories/GHSA-84x2-2qv6-qg56"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/nervosnetwork/ckb/commit/c5eb5478b635cea2ccef8676cf97692cd38293c3"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-02-02T22:21:27Z",
    "nvd_published_at" : null
  }
}