GHSA-9mfc-chwf-7whf: ckb Remote Code Execution Vulnerability

MODERATE
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Advisory Summary

GHSA-9mfc-chwf-7whf is a MODERATE remote code execution vulnerability (General Security Weakness) affecting ckb libraries in the crates.io ecosystem. The issue involves large dep group requires a lot of resources to process but the cost to commit the transaction is very low.. Remediation is available by upgrading affected packages to version 0.43.3.

GHSA-9mfc-chwf-7whf at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-9mfc-chwf-7whf
Severity MODERATE
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-9mfc-chwf-7whf

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: 0.43.3 
Upgrade ckb to 0.43.3
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-9mfc-chwf-7whf, 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 0.43.3), 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

### Impact When a transaction contains a dep group with many cells, the resources required to process it are not linear to the transaction size nor spent script cycles. ### Patches In 0.43.3, nodes drop the transactions relayed to them when they contain a dep group with more than 64 cells. They do not ban peers who send them such transactions. In 0.100, the consensus disallow transactions using a dep group with more than 64 cells. Peers relaying such transaction must be banned. Blocks committing such transactions must be rejected.

GHSA-9mfc-chwf-7whf Affected ckb Versions

1 component(s)
Fixed Versions:
0.43.3
Product / Package Ecosystem Affected Versions Fixed Version
ckb
 crates.io
< 0.43.3
0.43.3

References

GitHub Advisory / Wiki ADVISORY
https://github.com/nervosnetwork/ckb/security/advisories/GHSA-9mfc-chwf-7whf
ckb Source Repository REPOSITORY
https://github.com/nervosnetwork/ckb

Frequently Asked Questions

What is GHSA-9mfc-chwf-7whf?
GHSA-9mfc-chwf-7whf is a security vulnerability in ckb involving Large dep group requires a lot of resources to process but the cost to commit the transaction is very low. under General Security Weakness.
Which ckb versions are affected?
Affected versions include releases prior to 0.43.3 across affected packages: ckb.
What version fixes GHSA-9mfc-chwf-7whf?
Upgrading to 0.43.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is ckb affected?
Yes, ckb is affected in releases prior to 0.43.3. Upgrade your dependency to 0.43.3 or later.
What CWE is associated with GHSA-9mfc-chwf-7whf?
GHSA-9mfc-chwf-7whf is classified under General Security Weakness.
How can I check crates.io dependencies for GHSA-9mfc-chwf-7whf?
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-9mfc-chwf-7whf",
  "modified" : "2022-11-02T18:14:01Z",
  "published" : "2022-11-02T18:14:01Z",
  "aliases" : [ ],
  "summary" : "ckb: Large dep group requires a lot of resources to process but the cost to commit the transaction is very low.",
  "details" : "### Impact\n\nWhen a transaction contains a dep group with many cells, the resources required to process it are not linear to the transaction size nor spent script cycles. \n\n### Patches\n\nIn 0.43.3, nodes drop the transactions relayed to them when they contain a dep group with more than 64 cells. They do not ban peers who send them such transactions.\n\nIn 0.100, the consensus disallow transactions using a dep group with more than 64 cells. Peers relaying such transaction must be banned. Blocks committing such transactions must be rejected.\n",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "crates.io",
      "name" : "ckb"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.43.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/nervosnetwork/ckb/security/advisories/GHSA-9mfc-chwf-7whf"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/nervosnetwork/ckb"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-11-02T18:14:01Z",
    "nvd_published_at" : null
  }
}