GHSA-48wp-p9qv-4j64: Commonmarker Denial of Service Vulnerability

MODERATE
Share
Published
Advisory Summary

GHSA-48wp-p9qv-4j64 is a MODERATE denial of service vulnerability (General Security Weakness) affecting Commonmarker libraries in the RubyGems ecosystem. The issue involves commonmarker vulnerable to to several quadratic complexity bugs that may lead to denial of service. Remediation is available by upgrading affected packages to version 0.23.9.

GHSA-48wp-p9qv-4j64 at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-48wp-p9qv-4j64
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification General Security Weakness
Affected Product Commonmarker
Package Ecosystem RubyGems
Published Date
Last Updated

How to Fix GHSA-48wp-p9qv-4j64

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

commonmarker fixed: 0.23.9 
Upgrade commonmarker to 0.23.9
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 commonmarker

How to Check if You Are Affected

To determine whether your application is affected by GHSA-48wp-p9qv-4j64, inspect your project dependencies for Commonmarker:

inspect dependencies for commonmarker

Analyze the terminal output to locate any version of Commonmarker in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.23.9), 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 Commonmarker, 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 Several quadratic complexity bugs in commonmarker's underlying [`cmark-gfm`](https://github.com/github/cmark-gfm) library may lead to unbounded resource exhaustion and subsequent denial of service. The following vulnerabilities were addressed: * [CVE-2023-24824](https://github.com/github/cmark-gfm/security/advisories/GHSA-66g8-4hjf-77xh) * [CVE-2023-26485](https://github.com/github/cmark-gfm/security/advisories/GHSA-r8vr-c48j-fcc5) For more information, consult the release notes for version [`0.23.0.gfm.10`](https://github.com/github/cmark-gfm/releases/tag/0.29.0.gfm.10) and [`0.23.0.gfm.11`](https://github.com/github/cmark-gfm/releases/tag/0.29.0.gfm.11). ## Mitigation Users are advised to upgrade to commonmarker version [`0.23.9`](https://rubygems.org/gems/commonmarker/versions/0.23.9).

GHSA-48wp-p9qv-4j64 Affected Commonmarker Versions

1 component(s)
Fixed Versions:
0.23.9
Product / Package Ecosystem Affected Versions Fixed Version
commonmarker
gem/commonmarker
RubyGems
< 0.23.9
0.23.9

References

Commonmarker Source Repository REPOSITORY
https://github.com/gjtorikian/commonmarker
Commonmarker Release RELEASE
https://github.com/gjtorikian/commonmarker/releases/tag/v0.23.9
GitHub Advisory / Wiki ADVISORY
https://github.com/github/cmark-gfm/security/advisories/GHSA-66g8-4hjf-77xh
GitHub Advisory / Wiki ADVISORY
https://github.com/github/cmark-gfm/security/advisories/GHSA-r8vr-c48j-fcc5
Commonmarker Source Repository REPOSITORY
https://github.com/gjtorikian/commonmarker/pull/236
GitHub Advisory / Wiki ADVISORY
https://github.com/gjtorikian/commonmarker/security/advisories/GHSA-48wp-p9qv-4j64
Commonmarker Release RELEASE
https://github.com/github/cmark-gfm/releases/tag/0.29.0.gfm.10
Commonmarker Release RELEASE
https://github.com/github/cmark-gfm/releases/tag/0.29.0.gfm.11

Frequently Asked Questions

What is GHSA-48wp-p9qv-4j64?
GHSA-48wp-p9qv-4j64 is a security vulnerability in Commonmarker involving Commonmarker vulnerable to to several quadratic complexity bugs that may lead to denial of service under General Security Weakness.
Which Commonmarker versions are affected?
Affected versions include releases prior to 0.23.9 across affected packages: commonmarker.
What version fixes GHSA-48wp-p9qv-4j64?
Upgrading to 0.23.9 (or the latest patched release for your respective branch) resolves the vulnerability.
Is commonmarker affected?
Yes, commonmarker is affected in releases prior to 0.23.9. Upgrade your dependency to 0.23.9 or later.
What CWE is associated with GHSA-48wp-p9qv-4j64?
GHSA-48wp-p9qv-4j64 is classified under General Security Weakness.
How can I check RubyGems dependencies for GHSA-48wp-p9qv-4j64?
Run the dependency tree command: 'inspect dependencies for commonmarker'. 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-48wp-p9qv-4j64",
  "modified" : "2023-04-11T22:08:18Z",
  "published" : "2023-04-11T22:08:18Z",
  "aliases" : [ ],
  "summary" : "Commonmarker vulnerable to to several quadratic complexity bugs that may lead to denial of service",
  "details" : "## Impact\n\nSeveral quadratic complexity bugs in commonmarker's underlying [`cmark-gfm`](https://github.com/github/cmark-gfm) library may lead to unbounded resource exhaustion and subsequent denial of service.\n\nThe following vulnerabilities were addressed:\n\n* [CVE-2023-24824](https://github.com/github/cmark-gfm/security/advisories/GHSA-66g8-4hjf-77xh)\n* [CVE-2023-26485](https://github.com/github/cmark-gfm/security/advisories/GHSA-r8vr-c48j-fcc5)\n\nFor more information, consult the release notes for version [`0.23.0.gfm.10`](https://github.com/github/cmark-gfm/releases/tag/0.29.0.gfm.10) and [`0.23.0.gfm.11`](https://github.com/github/cmark-gfm/releases/tag/0.29.0.gfm.11).\n\n## Mitigation\n\nUsers are advised to upgrade to commonmarker version [`0.23.9`](https://rubygems.org/gems/commonmarker/versions/0.23.9).",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "RubyGems",
      "name" : "commonmarker"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.23.9"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/github/cmark-gfm/security/advisories/GHSA-66g8-4hjf-77xh"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/github/cmark-gfm/security/advisories/GHSA-r8vr-c48j-fcc5"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/gjtorikian/commonmarker/security/advisories/GHSA-48wp-p9qv-4j64"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/gjtorikian/commonmarker/pull/236"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/github/cmark-gfm/releases/tag/0.29.0.gfm.10"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/github/cmark-gfm/releases/tag/0.29.0.gfm.11"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/gjtorikian/commonmarker"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/gjtorikian/commonmarker/releases/tag/v0.23.9"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-04-11T22:08:18Z",
    "nvd_published_at" : null
  }
}