Vulnerability-Lookup

GHSA-5MQJ-XC49-246P

Vulnerability from github – Published: 2023-03-22 21:23 – Updated: 2023-03-22 21:49

Summary

crewjam/saml vulnerable to Denial Of Service Via Deflate Decompression Bomb

Details

Our use of flate.NewReader does not limit the size of the input. The user could pass more than 1 MB of data in the HTTP request to the processing functions, which will be decompressed server-side using the Deflate algorithm. Therefore, after repeating the same request multiple times, it is possible to achieve a reliable crash since the operating system kills the process.

Severity

7.5 (High)


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

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/crewjam/saml"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.4.13"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-28119"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-770"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-03-22T21:23:25Z",
    "nvd_published_at": "2023-03-22T20:15:00Z",
    "severity": "HIGH"
  },
  "details": "Our use of flate.NewReader does not limit the size of the input. The user could pass more than 1 MB of data in the HTTP request to the processing functions, which will be decompressed server-side using the Deflate algorithm. Therefore, after repeating the same request multiple times, it is possible to achieve a reliable crash since the operating system kills the process.\n",
  "id": "GHSA-5mqj-xc49-246p",
  "modified": "2023-03-22T21:49:43Z",
  "published": "2023-03-22T21:23:25Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/crewjam/saml/security/advisories/GHSA-5mqj-xc49-246p"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-28119"
    },
    {
      "type": "WEB",
      "url": "https://github.com/crewjam/saml/commit/8e9236867d176ad6338c870a84e2039aef8a5021"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/crewjam/saml"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "crewjam/saml vulnerable to Denial Of Service Via Deflate Decompression Bomb"
}

CVE-2023-28119 (GCVE-0-2023-28119)

Vulnerability from cvelistv5 – Published: 2023-03-22 19:51 – Updated: 2025-02-25 14:51

Title

crewjam/saml vulnerable to Denial Of Service Via Deflate Decompression Bomb

Summary

The crewjam/saml go library contains a partial implementation of the SAML standard in golang. Prior to version 0.4.13, the package's use of `flate.NewReader` does not limit the size of the input. The user can pass more than 1 MB of data in the HTTP request to the processing functions, which will be decompressed server-side using the Deflate algorithm. Therefore, after repeating the same request multiple times, it is possible to achieve a reliable crash since the operating system kills the process. This issue is patched in version 0.4.13.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-02-25 14:30 UTC

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

GitHub_M mitre root Scorecard

References

2 references

URL	Tags
https://github.com/crewjam/saml/security/advisori…	x_refsource_CONFIRM
https://github.com/crewjam/saml/commit/8e9236867d…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
crewjam	saml	Affected: < 0.4.13

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T12:30:24.231Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "https://github.com/crewjam/saml/security/advisories/GHSA-5mqj-xc49-246p",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/crewjam/saml/security/advisories/GHSA-5mqj-xc49-246p"
          },
          {
            "name": "https://github.com/crewjam/saml/commit/8e9236867d176ad6338c870a84e2039aef8a5021",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/crewjam/saml/commit/8e9236867d176ad6338c870a84e2039aef8a5021"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-28119",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-02-25T14:30:13.116152Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-02-25T14:51:31.420Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "saml",
          "vendor": "crewjam",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.4.13"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The crewjam/saml go library contains a partial implementation of the SAML standard in golang. Prior to version 0.4.13, the package\u0027s use of `flate.NewReader` does not limit the size of the input. The user can pass more than 1 MB of data in the HTTP request to the processing functions, which will be decompressed server-side using the Deflate algorithm. Therefore, after repeating the same request multiple times, it is possible to achieve a reliable crash since the operating system kills the process. This issue is patched in version 0.4.13.\n"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-770",
              "description": "CWE-770: Allocation of Resources Without Limits or Throttling",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-03-22T19:51:13.210Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/crewjam/saml/security/advisories/GHSA-5mqj-xc49-246p",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/crewjam/saml/security/advisories/GHSA-5mqj-xc49-246p"
        },
        {
          "name": "https://github.com/crewjam/saml/commit/8e9236867d176ad6338c870a84e2039aef8a5021",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/crewjam/saml/commit/8e9236867d176ad6338c870a84e2039aef8a5021"
        }
      ],
      "source": {
        "advisory": "GHSA-5mqj-xc49-246p",
        "discovery": "UNKNOWN"
      },
      "title": "crewjam/saml vulnerable to Denial Of Service Via Deflate Decompression Bomb"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2023-28119",
    "datePublished": "2023-03-22T19:51:13.210Z",
    "dateReserved": "2023-03-10T18:34:29.228Z",
    "dateUpdated": "2025-02-25T14:51:31.420Z",
    "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.

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.

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GHSA-5MQJ-XC49-246P

CVE-2023-28119 (GCVE-0-2023-28119)

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