gsd-2023-26483
Vulnerability from gsd
Modified
2023-12-13 01:20
Details
gosaml2 is a Pure Go implementation of SAML 2.0. SAML Service Providers using this library for SAML authentication support are likely susceptible to Denial of Service attacks. A bug in this library enables attackers to craft a `deflate`-compressed request which will consume significantly more memory during processing than the size of the original request. This may eventually lead to memory exhaustion and the process being killed. The maximum compression ratio achievable with `deflate` is 1032:1, so by limiting the size of bodies passed to gosaml2, limiting the rate and concurrency of calls, and ensuring that lots of memory is available to the process it _may_ be possible to help Go's garbage collector "keep up". Implementors are encouraged not to rely on this. This issue is fixed in version 0.9.0.
Aliases
Aliases
CVE-2023-26483


To clipboard 

{
  "GSD": {
    "alias": "CVE-2023-26483",
    "id": "GSD-2023-26483"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-26483"
      ],
      "details": "gosaml2 is a Pure Go implementation of SAML 2.0. SAML Service Providers using this library for SAML authentication support are likely susceptible to Denial of Service attacks. A bug in this library enables attackers to craft a `deflate`-compressed request which will consume significantly more memory during processing than the size of the original request. This may eventually lead to memory exhaustion and the process being killed. The maximum compression ratio achievable with `deflate` is 1032:1, so by limiting the size of bodies passed to gosaml2, limiting the rate and concurrency of calls, and ensuring that lots of memory is available to the process it _may_ be possible to help Go\u0027s garbage collector \"keep up\". Implementors are encouraged not to rely on this. This issue is fixed in version 0.9.0.",
      "id": "GSD-2023-26483",
      "modified": "2023-12-13T01:20:54.099674Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2023-26483",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "gosaml2",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "\u003c 0.9.0"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "russellhaering"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "gosaml2 is a Pure Go implementation of SAML 2.0. SAML Service Providers using this library for SAML authentication support are likely susceptible to Denial of Service attacks. A bug in this library enables attackers to craft a `deflate`-compressed request which will consume significantly more memory during processing than the size of the original request. This may eventually lead to memory exhaustion and the process being killed. The maximum compression ratio achievable with `deflate` is 1032:1, so by limiting the size of bodies passed to gosaml2, limiting the rate and concurrency of calls, and ensuring that lots of memory is available to the process it _may_ be possible to help Go\u0027s garbage collector \"keep up\". Implementors are encouraged not to rely on this. This issue is fixed in version 0.9.0."
          }
        ]
      },
      "impact": {
        "cvss": [
          {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "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:L",
            "version": "3.1"
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "cweId": "CWE-409",
                "lang": "eng",
                "value": "CWE-409: Improper Handling of Highly Compressed Data (Data Amplification)"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/russellhaering/gosaml2/security/advisories/GHSA-6gc3-crp7-25w5",
            "refsource": "MISC",
            "url": "https://github.com/russellhaering/gosaml2/security/advisories/GHSA-6gc3-crp7-25w5"
          },
          {
            "name": "https://github.com/russellhaering/gosaml2/commit/f9d66040241093e8702649baff50cc70d2c683c0",
            "refsource": "MISC",
            "url": "https://github.com/russellhaering/gosaml2/commit/f9d66040241093e8702649baff50cc70d2c683c0"
          },
          {
            "name": "https://github.com/russellhaering/gosaml2/releases/tag/v0.9.0",
            "refsource": "MISC",
            "url": "https://github.com/russellhaering/gosaml2/releases/tag/v0.9.0"
          },
          {
            "name": "https://pkg.go.dev/vuln/GO-2023-1602",
            "refsource": "MISC",
            "url": "https://pkg.go.dev/vuln/GO-2023-1602"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-6gc3-crp7-25w5",
        "discovery": "UNKNOWN"
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003cv0.9.0",
          "affected_versions": "All versions before 0.9.0",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "cwe_ids": [
            "CWE-1035",
            "CWE-937"
          ],
          "date": "2023-03-13",
          "description": "### Impact\nSAML Service Providers using this library for SAML authentication support are likely susceptible to Denial of Service attacks. A bug in this library enables attackers to craft a `deflate`-compressed request which will consume significantly more memory during processing than the size of the original request. This may eventually lead to memory exhaustion and the process being killed.\n\n### Mitigation\nThe maximum compression ratio achievable with `deflate` is 1032:1, so by limiting the size of bodies passed to gosaml2, limiting the rate and concurrency of calls, and ensuring that lots of memory is available to the process it _may_ be possible to help Go\u0027s garbage collector \"keep up\".\n\nImplementors are encouraged not to rely on this.\n\n### Patches\nThis issue is addressed in v0.9.0",
          "fixed_versions": [
            "v0.9.0"
          ],
          "identifier": "GMS-2023-564",
          "identifiers": [
            "CVE-2023-26483",
            "GHSA-6gc3-crp7-25w5",
            "GMS-2023-564"
          ],
          "not_impacted": "",
          "package_slug": "go/github.com/russellhaering/gosaml2",
          "pubdate": "2023-03-03",
          "solution": "Upgrade to version 0.9.0 or above.",
          "title": "gosaml2 vulnerable to Denial Of Service Via Deflate Decompression Bomb",
          "urls": [
            "https://github.com/russellhaering/gosaml2/security/advisories/GHSA-6gc3-crp7-25w5",
            "https://github.com/russellhaering/gosaml2/commit/f9d66040241093e8702649baff50cc70d2c683c0",
            "https://github.com/russellhaering/gosaml2/releases/tag/v0.9.0",
            "https://github.com/advisories/GHSA-6gc3-crp7-25w5"
          ],
          "uuid": "40e5d471-f32c-4f42-b274-169eec2ec247",
          "versions": [
            {
              "commit": {
                "sha": "629123cf78da94425d341ed99190cb68085841de",
                "tags": [
                  "v0.9.0"
                ],
                "timestamp": "20230301214958"
              },
              "number": "v0.9.0"
            }
          ]
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:gosaml2_project:gosaml2:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "0.9.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2023-26483"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "gosaml2 is a Pure Go implementation of SAML 2.0. SAML Service Providers using this library for SAML authentication support are likely susceptible to Denial of Service attacks. A bug in this library enables attackers to craft a `deflate`-compressed request which will consume significantly more memory during processing than the size of the original request. This may eventually lead to memory exhaustion and the process being killed. The maximum compression ratio achievable with `deflate` is 1032:1, so by limiting the size of bodies passed to gosaml2, limiting the rate and concurrency of calls, and ensuring that lots of memory is available to the process it _may_ be possible to help Go\u0027s garbage collector \"keep up\". Implementors are encouraged not to rely on this. This issue is fixed in version 0.9.0."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "NVD-CWE-Other"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/russellhaering/gosaml2/commit/f9d66040241093e8702649baff50cc70d2c683c0",
              "refsource": "MISC",
              "tags": [
                "Patch"
              ],
              "url": "https://github.com/russellhaering/gosaml2/commit/f9d66040241093e8702649baff50cc70d2c683c0"
            },
            {
              "name": "https://github.com/russellhaering/gosaml2/security/advisories/GHSA-6gc3-crp7-25w5",
              "refsource": "MISC",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://github.com/russellhaering/gosaml2/security/advisories/GHSA-6gc3-crp7-25w5"
            },
            {
              "name": "https://github.com/russellhaering/gosaml2/releases/tag/v0.9.0",
              "refsource": "MISC",
              "tags": [
                "Release Notes"
              ],
              "url": "https://github.com/russellhaering/gosaml2/releases/tag/v0.9.0"
            },
            {
              "name": "https://pkg.go.dev/vuln/GO-2023-1602",
              "refsource": "MISC",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://pkg.go.dev/vuln/GO-2023-1602"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "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:L",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 1.4
        }
      },
      "lastModifiedDate": "2023-03-13T17:02Z",
      "publishedDate": "2023-03-03T23:15Z"
    }
  }
}


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