Vulnerability-Lookup

OESA-2024-1938 (CVE-2024-35221)

Vulnerability from osv_openeuler – Published: 2024-08-02 11:07 – Updated: 2026-08-06 11:07 – Source website

Summary

ruby security update

Details

Ruby is a fast and easy interpreted scripting language for object-oriented programming. It has many functions for processing text Files and perform system management tasks (such as Perl).

Security Fix(es):

Rubygems.org is the Ruby community's gem hosting service. A Gem publisher can cause a Remote DoS when publishing a Gem. This is due to how Ruby reads the Manifest of Gem files when using Gem::Specification.from_yaml. from_yaml makes use of SafeYAML.load which allows YAML aliases inside the YAML-based metadata of a gem. YAML aliases allow for Denial of Service attacks with so-called YAML-bombs (comparable to Billion laughs attacks). This was patched. There is is no action required by users. This issue is also tracked as GHSL-2024-001 and was discovered by the GitHub security lab.(CVE-2024-35221)

Severity

4.3 (Medium)


                    
                      CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

References

URL

Type

	https://www.openeuler.org/en/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2024-35221	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "rubygem-bigdecimal-3.1.3-142.oe2403.aarch64.rpm",
          "rubygem-json-2.6.3-142.oe2403.aarch64.rpm",
          "ruby-3.2.2-142.oe2403.aarch64.rpm",
          "ruby-debugsource-3.2.2-142.oe2403.aarch64.rpm",
          "rubygem-io-console-0.6.0-142.oe2403.aarch64.rpm",
          "ruby-devel-3.2.2-142.oe2403.aarch64.rpm",
          "ruby-bundled-gems-3.2.2-142.oe2403.aarch64.rpm",
          "rubygem-psych-5.0.1-142.oe2403.aarch64.rpm",
          "ruby-debuginfo-3.2.2-142.oe2403.aarch64.rpm",
          "rubygem-openssl-3.1.0-142.oe2403.aarch64.rpm",
          "rubygem-rbs-2.8.2-142.oe2403.aarch64.rpm"
        ],
        "noarch": [
          "rubygem-did_you_mean-1.6.3-142.oe2403.noarch.rpm",
          "rubygem-rexml-3.2.5-142.oe2403.noarch.rpm",
          "rubygem-test-unit-3.5.7-142.oe2403.noarch.rpm",
          "ruby-irb-3.2.2-142.oe2403.noarch.rpm",
          "rubygem-minitest-5.16.3-142.oe2403.noarch.rpm",
          "rubygems-3.4.10-142.oe2403.noarch.rpm",
          "rubygems-devel-3.4.10-142.oe2403.noarch.rpm",
          "rubygem-rake-13.0.6-142.oe2403.noarch.rpm",
          "rubygem-rdoc-6.5.0-142.oe2403.noarch.rpm",
          "ruby-help-3.2.2-142.oe2403.noarch.rpm",
          "rubygem-rss-0.2.9-142.oe2403.noarch.rpm",
          "rubygem-typeprof-0.21.3-142.oe2403.noarch.rpm"
        ],
        "src": [
          "ruby-3.2.2-142.oe2403.src.rpm"
        ],
        "x86_64": [
          "rubygem-rbs-2.8.2-142.oe2403.x86_64.rpm",
          "rubygem-json-2.6.3-142.oe2403.x86_64.rpm",
          "ruby-3.2.2-142.oe2403.x86_64.rpm",
          "rubygem-openssl-3.1.0-142.oe2403.x86_64.rpm",
          "ruby-debuginfo-3.2.2-142.oe2403.x86_64.rpm",
          "ruby-bundled-gems-3.2.2-142.oe2403.x86_64.rpm",
          "rubygem-io-console-0.6.0-142.oe2403.x86_64.rpm",
          "ruby-debugsource-3.2.2-142.oe2403.x86_64.rpm",
          "ruby-devel-3.2.2-142.oe2403.x86_64.rpm",
          "rubygem-psych-5.0.1-142.oe2403.x86_64.rpm",
          "rubygem-bigdecimal-3.1.3-142.oe2403.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS",
        "name": "ruby",
        "purl": "pkg:rpm/openEuler/ruby\u0026distro=openEuler-24.03-LTS"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.2.2-142.oe2403"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Medium"
  },
  "details": "Ruby is a fast and easy interpreted scripting language for object-oriented programming. It has many functions for processing text Files and perform system management tasks (such as Perl).\r\n\r\nSecurity Fix(es):\r\n\r\nRubygems.org is the Ruby community\u0026apos;s gem hosting service. A Gem publisher can cause a Remote DoS when publishing a Gem. This is due to how Ruby reads the Manifest of Gem files when using Gem::Specification.from_yaml. from_yaml makes use of SafeYAML.load which allows YAML aliases inside the YAML-based metadata of a gem. YAML aliases allow for Denial of Service attacks with so-called `YAML-bombs` (comparable to Billion laughs attacks). This was patched. There is is no action required by users. This issue is also tracked as GHSL-2024-001 and was discovered by the GitHub security lab.(CVE-2024-35221)",
  "id": "OESA-2024-1938",
  "modified": "2026-08-06T11:07:24Z",
  "published": "2024-08-02T11:07:24Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/en/security/security-bulletins/detail?id=openEuler-SA-2024-1938"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35221"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "ruby security update",
  "upstream": [
    "CVE-2024-35221"
  ]
}

CVE-2024-35221 (GCVE-0-2024-35221)

Vulnerability from cvelistv5 – Published: 2024-05-29 20:18 – Updated: 2024-08-02 03:07

Title

Denial of service when publishing a package on rubygems.org

Summary

Rubygems.org is the Ruby community's gem hosting service. A Gem publisher can cause a Remote DoS when publishing a Gem. This is due to how Ruby reads the Manifest of Gem files when using Gem::Specification.from_yaml. from_yaml makes use of SafeYAML.load which allows YAML aliases inside the YAML-based metadata of a gem. YAML aliases allow for Denial of Service attacks with so-called `YAML-bombs` (comparable to Billion laughs attacks). This was patched. There is is no action required by users. This issue is also tracked as GHSL-2024-001 and was discovered by the GitHub security lab.

Severity

4.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-06-06 18:59 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/rubygems/rubygems.org/security…	x_refsource_CONFIRM
https://en.wikipedia.org/wiki/Billion_laughs_attack	x_refsource_MISC
https://github.com/ruby/ruby/blob/7cf74a2ff28b1b4…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
rubygems	rubygems.org	Affected: < 2024-04-12

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-35221",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-06-06T18:59:20.588645Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-06T18:59:30.878Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T03:07:46.784Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "https://github.com/rubygems/rubygems.org/security/advisories/GHSA-4vc5-whwr-7hh2",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/rubygems/rubygems.org/security/advisories/GHSA-4vc5-whwr-7hh2"
          },
          {
            "name": "https://en.wikipedia.org/wiki/Billion_laughs_attack",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://en.wikipedia.org/wiki/Billion_laughs_attack"
          },
          {
            "name": "https://github.com/ruby/ruby/blob/7cf74a2ff28b1b4c26e367d0d67521f7e1fed239/lib/rubygems/safe_yaml.rb#L28",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/ruby/ruby/blob/7cf74a2ff28b1b4c26e367d0d67521f7e1fed239/lib/rubygems/safe_yaml.rb#L28"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "rubygems.org",
          "vendor": "rubygems",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2024-04-12"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Rubygems.org is the Ruby community\u0027s gem hosting service. A Gem publisher can cause a Remote DoS when publishing a Gem. This is due to how Ruby reads the Manifest of Gem files when using Gem::Specification.from_yaml. from_yaml makes use of SafeYAML.load which allows YAML aliases inside the YAML-based metadata of a gem. YAML aliases allow for Denial of Service attacks with so-called `YAML-bombs` (comparable to Billion laughs attacks). This was patched. There is is no action required by users. This issue is also tracked as GHSL-2024-001 and was discovered by the GitHub security lab."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-05-29T20:18:06.763Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/rubygems/rubygems.org/security/advisories/GHSA-4vc5-whwr-7hh2",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/rubygems/rubygems.org/security/advisories/GHSA-4vc5-whwr-7hh2"
        },
        {
          "name": "https://en.wikipedia.org/wiki/Billion_laughs_attack",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://en.wikipedia.org/wiki/Billion_laughs_attack"
        },
        {
          "name": "https://github.com/ruby/ruby/blob/7cf74a2ff28b1b4c26e367d0d67521f7e1fed239/lib/rubygems/safe_yaml.rb#L28",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/ruby/ruby/blob/7cf74a2ff28b1b4c26e367d0d67521f7e1fed239/lib/rubygems/safe_yaml.rb#L28"
        }
      ],
      "source": {
        "advisory": "GHSA-4vc5-whwr-7hh2",
        "discovery": "UNKNOWN"
      },
      "title": "Denial of service when publishing a package on rubygems.org"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2024-35221",
    "datePublished": "2024-05-29T20:18:06.763Z",
    "dateReserved": "2024-05-14T15:39:41.783Z",
    "dateUpdated": "2024-08-02T03:07:46.784Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.