gsd-2021-40085
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
An issue was discovered in OpenStack Neutron before 16.4.1, 17.x before 17.2.1, and 18.x before 18.1.1. Authenticated attackers can reconfigure dnsmasq via a crafted extra_dhcp_opts value.
Aliases
Aliases
CVE-2021-40085


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-40085",
    "description": "An issue was discovered in OpenStack Neutron before 16.4.1, 17.x before 17.2.1, and 18.x before 18.1.1. Authenticated attackers can reconfigure dnsmasq via a crafted extra_dhcp_opts value.",
    "id": "GSD-2021-40085",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-40085.html",
      "https://www.debian.org/security/2021/dsa-4983",
      "https://access.redhat.com/errata/RHSA-2021:3503",
      "https://access.redhat.com/errata/RHSA-2021:3502",
      "https://access.redhat.com/errata/RHSA-2021:3488",
      "https://access.redhat.com/errata/RHSA-2021:3481"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-40085"
      ],
      "details": "An issue was discovered in OpenStack Neutron before 16.4.1, 17.x before 17.2.1, and 18.x before 18.1.1. Authenticated attackers can reconfigure dnsmasq via a crafted extra_dhcp_opts value.",
      "id": "GSD-2021-40085",
      "modified": "2023-12-13T01:23:25.848678Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2021-40085",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
      },
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      "data_type": "CVE",
      "data_version": "4.0",
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            "value": "An issue was discovered in OpenStack Neutron before 16.4.1, 17.x before 17.2.1, and 18.x before 18.1.1. Authenticated attackers can reconfigure dnsmasq via a crafted extra_dhcp_opts value."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://launchpad.net/bugs/1939733",
            "refsource": "MISC",
            "url": "https://launchpad.net/bugs/1939733"
          },
          {
            "name": "[oss-security] 20210831 [OSSA-2021-005] Neutron: Arbitrary dnsmasq reconfiguration via extra_dhcp_opts (CVE-2021-40085)",
            "refsource": "MLIST",
            "url": "http://www.openwall.com/lists/oss-security/2021/08/31/2"
          },
          {
            "name": "https://security.openstack.org/ossa/OSSA-2021-005.html",
            "refsource": "MISC",
            "url": "https://security.openstack.org/ossa/OSSA-2021-005.html"
          },
          {
            "name": "[debian-lts-announce] 20211011 [SECURITY] [DLA 2781-1] neutron security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2021/10/msg00005.html"
          },
          {
            "name": "DSA-4983",
            "refsource": "DEBIAN",
            "url": "https://www.debian.org/security/2021/dsa-4983"
          },
          {
            "name": "[debian-lts-announce] 20220526 [SECURITY] [DLA 3027-1] neutron security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2022/05/msg00038.html"
          }
        ]
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c16.4.1||\u003e=17.0.0,\u003c17.2.1||\u003e=18.0.0,\u003c18.1.1",
          "affected_versions": "All versions before 16.4.1, all versions starting from 17.0.0 before 17.2.1, all versions starting from 18.0.0 before 18.1.1",
          "cvss_v2": "AV:N/AC:L/Au:S/C:N/I:P/A:N",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-937"
          ],
          "date": "2022-06-13",
          "description": "An issue was discovered in OpenStack Neutron Authenticated attackers can reconfigure dnsmasq via a crafted extra_dhcp_opts value.",
          "fixed_versions": [
            "16.4.1",
            "17.2.1",
            "18.1.1"
          ],
          "identifier": "CVE-2021-40085",
          "identifiers": [
            "CVE-2021-40085"
          ],
          "not_impacted": "All versions starting from 16.4.1 before 17.0.0, all versions starting from 17.2.1 before 18.0.0, all versions starting from 18.1.1",
          "package_slug": "pypi/neutron",
          "pubdate": "2021-08-31",
          "solution": "Upgrade to versions 16.4.1, 17.2.1, 18.1.1 or above.",
          "title": "Security Misconfiguration",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-40085",
            "https://security.openstack.org/ossa/OSSA-2021-005.html"
          ],
          "uuid": "e0d50c03-2e10-463c-9f93-63084864d6c9"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "16.4.1",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "18.1.1",
                "versionStartIncluding": "18.0.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:openstack:neutron:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "17.2.1",
                "versionStartIncluding": "17.0.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-40085"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
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              "lang": "en",
              "value": "An issue was discovered in OpenStack Neutron before 16.4.1, 17.x before 17.2.1, and 18.x before 18.1.1. Authenticated attackers can reconfigure dnsmasq via a crafted extra_dhcp_opts value."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "NVD-CWE-noinfo"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://security.openstack.org/ossa/OSSA-2021-005.html",
              "refsource": "MISC",
              "tags": [
                "Patch",
                "Vendor Advisory"
              ],
              "url": "https://security.openstack.org/ossa/OSSA-2021-005.html"
            },
            {
              "name": "https://launchpad.net/bugs/1939733",
              "refsource": "MISC",
              "tags": [
                "Exploit",
                "Issue Tracking",
                "Third Party Advisory"
              ],
              "url": "https://launchpad.net/bugs/1939733"
            },
            {
              "name": "[oss-security] 20210831 [OSSA-2021-005] Neutron: Arbitrary dnsmasq reconfiguration via extra_dhcp_opts (CVE-2021-40085)",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Patch",
                "Third Party Advisory"
              ],
              "url": "http://www.openwall.com/lists/oss-security/2021/08/31/2"
            },
            {
              "name": "[debian-lts-announce] 20211011 [SECURITY] [DLA 2781-1] neutron security update",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.debian.org/debian-lts-announce/2021/10/msg00005.html"
            },
            {
              "name": "DSA-4983",
              "refsource": "DEBIAN",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://www.debian.org/security/2021/dsa-4983"
            },
            {
              "name": "[debian-lts-announce] 20220526 [SECURITY] [DLA 3027-1] neutron security update",
              "refsource": "MLIST",
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              ],
              "url": "https://lists.debian.org/debian-lts-announce/2022/05/msg00038.html"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "NONE",
            "baseScore": 4.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 8.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2022-06-13T19:56Z",
      "publishedDate": "2021-08-31T18:15Z"
    }
  }
}


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