Vulnerability-Lookup

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 CNA under the mitre root

CNA scorecard C 72/100 over 8104 records in the last 180 days details

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	CPE status
crewjam	saml	Affected: < 0.4.13	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2023-28119

Vulnerability from fkie_nvd - Published: 2023-03-22 20:15 - Updated: 2026-06-17 05:46

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

References

URL	Tags
security-advisories@github.com	https://github.com/crewjam/saml/commit/8e9236867d176ad6338c870a84e2039aef8a5021	Patch
security-advisories@github.com	https://github.com/crewjam/saml/security/advisories/GHSA-5mqj-xc49-246p	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/crewjam/saml/commit/8e9236867d176ad6338c870a84e2039aef8a5021	Patch
af854a3a-2127-422b-91ae-364da2661108	https://github.com/crewjam/saml/security/advisories/GHSA-5mqj-xc49-246p	Vendor Advisory

Impacted products

	Vendor	Product	Version
	saml_project	saml	0.4.12

JSON

To clipboard

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          "product": "saml",
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        "Patch"
      ],
      "url": "https://github.com/crewjam/saml/commit/8e9236867d176ad6338c870a84e2039aef8a5021"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/crewjam/saml/security/advisories/GHSA-5mqj-xc49-246p"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}

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

Show details on source website

JSON

To clipboard

{
  "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"
}

GSD-2023-28119

Vulnerability from gsd - Updated: 2023-12-13 01:20

Details

Aliases

CVE-2023-28119

Aliases

CVE-2023-28119

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2023-28119",
    "id": "GSD-2023-28119"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-28119"
      ],
      "details": "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.",
      "id": "GSD-2023-28119",
      "modified": "2023-12-13T01:20:49.101180Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2023-28119",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "saml",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "\u003c 0.4.13"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "crewjam"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "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."
          }
        ]
      },
      "impact": {
        "cvss": [
          {
            "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"
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "cweId": "CWE-770",
                "lang": "eng",
                "value": "CWE-770: Allocation of Resources Without Limits or Throttling"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/crewjam/saml/security/advisories/GHSA-5mqj-xc49-246p",
            "refsource": "MISC",
            "url": "https://github.com/crewjam/saml/security/advisories/GHSA-5mqj-xc49-246p"
          },
          {
            "name": "https://github.com/crewjam/saml/commit/8e9236867d176ad6338c870a84e2039aef8a5021",
            "refsource": "MISC",
            "url": "https://github.com/crewjam/saml/commit/8e9236867d176ad6338c870a84e2039aef8a5021"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-5mqj-xc49-246p",
        "discovery": "UNKNOWN"
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003cv0.4.13",
          "affected_versions": "All versions before 0.4.13",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-770",
            "CWE-937"
          ],
          "date": "2023-03-28",
          "description": "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.",
          "fixed_versions": [
            "v0.4.13"
          ],
          "identifier": "CVE-2023-28119",
          "identifiers": [
            "CVE-2023-28119",
            "GHSA-5mqj-xc49-246p"
          ],
          "not_impacted": "All versions starting from 0.4.13",
          "package_slug": "go/github.com/crewjam/saml",
          "pubdate": "2023-03-22",
          "solution": "Upgrade to version 0.4.13 or above.",
          "title": "Allocation of Resources Without Limits or Throttling",
          "urls": [
            "https://github.com/crewjam/saml/security/advisories/GHSA-5mqj-xc49-246p",
            "https://github.com/crewjam/saml/commit/8e9236867d176ad6338c870a84e2039aef8a5021",
            "https://nvd.nist.gov/vuln/detail/CVE-2023-28119",
            "https://github.com/advisories/GHSA-5mqj-xc49-246p"
          ],
          "uuid": "0e02073c-a30e-4937-aa09-916c66063b35",
          "versions": [
            {
              "commit": {
                "sha": "8e9236867d176ad6338c870a84e2039aef8a5021",
                "tags": [
                  "v0.4.13"
                ],
                "timestamp": "20230322192200"
              },
              "number": "v0.4.13"
            }
          ]
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:saml_project:saml:0.4.12:*:*:*:*:go:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2023-28119"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "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."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-770"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/crewjam/saml/commit/8e9236867d176ad6338c870a84e2039aef8a5021",
              "refsource": "MISC",
              "tags": [
                "Patch"
              ],
              "url": "https://github.com/crewjam/saml/commit/8e9236867d176ad6338c870a84e2039aef8a5021"
            },
            {
              "name": "https://github.com/crewjam/saml/security/advisories/GHSA-5mqj-xc49-246p",
              "refsource": "MISC",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://github.com/crewjam/saml/security/advisories/GHSA-5mqj-xc49-246p"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "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"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2023-03-28T16:57Z",
      "publishedDate": "2023-03-22T20:15Z"
    }
  }
}

UBUNTU-CVE-2023-28119 (CVE-2023-28119)

Vulnerability from osv_ubuntu – Published: 2023-03-22 20:15 – Updated: 2025-09-08 16:56 – Source website

Details

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

7.5 (High)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2023-28119	REPORT
	https://github.com/crewjam/saml/commit/8e9236867d…	REPORT
	https://github.com/crewjam/saml/security/advisori…	REPORT
	https://www.cve.org/CVERecord?id=CVE-2023-28119	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "golang-github-crewjam-saml-dev",
            "binary_version": "0.4.6-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "golang-github-crewjam-saml",
        "purl": "pkg:deb/ubuntu/golang-github-crewjam-saml@0.4.6-2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.4.5+git20201228.07f15a6-2",
        "0.4.6-1",
        "0.4.6-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "golang-github-crewjam-saml-dev",
            "binary_version": "0.4.12-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "golang-github-crewjam-saml",
        "purl": "pkg:deb/ubuntu/golang-github-crewjam-saml@0.4.12-2?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.4.12-2"
      ]
    }
  ],
  "aliases": [],
  "details": "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.",
  "id": "UBUNTU-CVE-2023-28119",
  "modified": "2025-09-08T16:56:11Z",
  "published": "2023-03-22T20:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-28119"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/crewjam/saml/commit/8e9236867d176ad6338c870a84e2039aef8a5021"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/crewjam/saml/security/advisories/GHSA-5mqj-xc49-246p"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-28119"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2023-28119"
  ]
}

WID-SEC-W-2023-1088

Vulnerability from csaf_certbund - Published: 2023-04-26 22:00 - Updated: 2024-02-08 23:00

Summary

Grafana: Mehrere Schwachstellen

Severity

Mittel

Scope

2 vulnerabilities in this advisory, including CVE-2023-28119.

CVE-2023-28119

Es existiert eine Schwachstelle in Grafana. Der Fehler besteht, weil die Funktion flate.NewReader aus der Komponente crewjam/saml die Größe der Eingabe nicht begrenzt. Ein entfernter, anonymer Angreifer kann diese Schwachstelle ausnutzen, indem er mehr als 1 MB an Daten in der HTTP-Anforderung an die Verarbeitungsfunktionen weitergibt, um einen Denial-of-Service-Zustand zu verursachen.

Known affected: 2 products

Open the full advisory

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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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.

Action not permitted

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

FKIE_CVE-2023-28119

GHSA-5MQJ-XC49-246P

GSD-2023-28119

UBUNTU-CVE-2023-28119 (CVE-2023-28119)

WID-SEC-W-2023-1088

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Nomenclature

Vulnerability timeline

Related by attack behaviour