gsd-2021-36740
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
Varnish Cache, with HTTP/2 enabled, allows request smuggling and VCL authorization bypass via a large Content-Length header for a POST request. This affects Varnish Enterprise 6.0.x before 6.0.8r3, and Varnish Cache 5.x and 6.x before 6.5.2, 6.6.x before 6.6.1, and 6.0 LTS before 6.0.8.
Aliases
Aliases
CVE-2021-36740


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-36740",
    "description": "Varnish Cache, with HTTP/2 enabled, allows request smuggling and VCL authorization bypass via a large Content-Length header for a POST request. This affects Varnish Enterprise 6.0.x before 6.0.8r3, and Varnish Cache 5.x and 6.x before 6.5.2, 6.6.x before 6.6.1, and 6.0 LTS before 6.0.8.",
    "id": "GSD-2021-36740",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-36740.html",
      "https://www.debian.org/security/2022/dsa-5088",
      "https://access.redhat.com/errata/RHSA-2021:2993",
      "https://access.redhat.com/errata/RHSA-2021:2988",
      "https://advisories.mageia.org/CVE-2021-36740.html",
      "https://security.archlinux.org/CVE-2021-36740",
      "https://linux.oracle.com/cve/CVE-2021-36740.html",
      "https://ubuntu.com/security/CVE-2021-36740"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-36740"
      ],
      "details": "Varnish Cache, with HTTP/2 enabled, allows request smuggling and VCL authorization bypass via a large Content-Length header for a POST request. This affects Varnish Enterprise 6.0.x before 6.0.8r3, and Varnish Cache 5.x and 6.x before 6.5.2, 6.6.x before 6.6.1, and 6.0 LTS before 6.0.8.",
      "id": "GSD-2021-36740",
      "modified": "2023-12-13T01:23:16.366029Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2021-36740",
        "STATE": "PUBLIC"
      },
      "affects": {
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            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
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          }
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      },
      "references": {
        "reference_data": [
          {
            "name": "https://varnish-cache.org/security/VSV00007.html",
            "refsource": "MISC",
            "url": "https://varnish-cache.org/security/VSV00007.html"
          },
          {
            "name": "https://docs.varnish-software.com/security/VSV00007/",
            "refsource": "MISC",
            "url": "https://docs.varnish-software.com/security/VSV00007/"
          },
          {
            "name": "https://github.com/varnishcache/varnish-cache/commit/9be22198e258d0e7a5c41f4291792214a29405cf",
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            "url": "https://github.com/varnishcache/varnish-cache/commit/9be22198e258d0e7a5c41f4291792214a29405cf"
          },
          {
            "name": "https://github.com/varnishcache/varnish-cache/commit/82b0a629f60136e76112c6f2c6372cce77b683be",
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          },
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            "refsource": "FEDORA",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZHBNLDEOTGYRIEQZBWV7F6VPYS4O2AAK/"
          },
          {
            "name": "FEDORA-2021-cf7585f0ca",
            "refsource": "FEDORA",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/THV2DQA2GS65HUCKK4KSD2XLN3AAQ2V5/"
          },
          {
            "name": "DSA-5088",
            "refsource": "DEBIAN",
            "url": "https://www.debian.org/security/2022/dsa-5088"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
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                "cpe23Uri": "cpe:2.3:a:varnish-cache:varnish_cache:*:*:*:*:plus:*:*:*",
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                "versionEndExcluding": "6.0.8",
                "versionStartIncluding": "6.0.0",
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              {
                "cpe23Uri": "cpe:2.3:a:varnish-cache:varnish_cache:6.0.8:r2:*:*:plus:*:*:*",
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              {
                "cpe23Uri": "cpe:2.3:a:varnish-cache:varnish_cache:6.0.8:r1:*:*:plus:*:*:*",
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              {
                "cpe23Uri": "cpe:2.3:a:varnish_cache_project:varnish_cache:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "5.2.1",
                "versionStartIncluding": "5.0.0",
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              },
              {
                "cpe23Uri": "cpe:2.3:a:varnish_cache_project:varnish_cache:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "6.6.0",
                "versionStartIncluding": "6.1.0",
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              },
              {
                "cpe23Uri": "cpe:2.3:a:varnish-software:varnish_cache:*:*:*:*:lts:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "6.0.7",
                "versionStartIncluding": "6.0.0",
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              },
              {
                "cpe23Uri": "cpe:2.3:a:varnish-software:varnish_cache:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "6.0.5",
                "versionStartIncluding": "6.0.0",
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              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*",
                "cpe_name": [],
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              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                "cpe_name": [],
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              },
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
                "cpe_name": [],
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              }
            ],
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          }
        ]
      },
      "cve": {
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          "ID": "CVE-2021-36740"
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            }
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        "problemtype": {
          "problemtype_data": [
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        "references": {
          "reference_data": [
            {
              "name": "https://github.com/varnishcache/varnish-cache/commit/82b0a629f60136e76112c6f2c6372cce77b683be",
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            },
            {
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              "url": "https://www.debian.org/security/2022/dsa-5088"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 6.4,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 4.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 2.5
        }
      },
      "lastModifiedDate": "2022-08-02T19:12Z",
      "publishedDate": "2021-07-14T17:15Z"
    }
  }
}


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