GSD-2020-8569

Vulnerability from gsd - Updated: 2023-12-13 01:21
Details
Kubernetes CSI snapshot-controller prior to v2.1.3 and v3.0.2 could panic when processing a VolumeSnapshot custom resource when: - The VolumeSnapshot referenced a non-existing PersistentVolumeClaim and the VolumeSnapshot did not reference any VolumeSnapshotClass. - The snapshot-controller crashes, is automatically restarted by Kubernetes, and processes the same VolumeSnapshot custom resource after the restart, entering an endless crashloop. Only the volume snapshot feature is affected by this vulnerability. When exploited, users can’t take snapshots of their volumes or delete the snapshots. All other Kubernetes functionality is not affected.
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Aliases
CVE-2020-8569
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{
  "GSD": {
    "alias": "CVE-2020-8569",
    "description": "Kubernetes CSI snapshot-controller prior to v2.1.3 and v3.0.2 could panic when processing a VolumeSnapshot custom resource when: - The VolumeSnapshot referenced a non-existing PersistentVolumeClaim and the VolumeSnapshot did not reference any VolumeSnapshotClass. - The snapshot-controller crashes, is automatically restarted by Kubernetes, and processes the same VolumeSnapshot custom resource after the restart, entering an endless crashloop. Only the volume snapshot feature is affected by this vulnerability. When exploited, users can\u2019t take snapshots of their volumes or delete the snapshots. All other Kubernetes functionality is not affected.",
    "id": "GSD-2020-8569",
    "references": [
      "https://www.suse.com/security/cve/CVE-2020-8569.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2020-8569"
      ],
      "details": "Kubernetes CSI snapshot-controller prior to v2.1.3 and v3.0.2 could panic when processing a VolumeSnapshot custom resource when: - The VolumeSnapshot referenced a non-existing PersistentVolumeClaim and the VolumeSnapshot did not reference any VolumeSnapshotClass. - The snapshot-controller crashes, is automatically restarted by Kubernetes, and processes the same VolumeSnapshot custom resource after the restart, entering an endless crashloop. Only the volume snapshot feature is affected by this vulnerability. When exploited, users can\u2019t take snapshots of their volumes or delete the snapshots. All other Kubernetes functionality is not affected.",
      "id": "GSD-2020-8569",
      "modified": "2023-12-13T01:21:54.223623Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security@kubernetes.io",
        "DATE_PUBLIC": "2020-11-17T21:00:00.000Z",
        "ID": "CVE-2020-8569",
        "STATE": "PUBLIC",
        "TITLE": "Kubernetes CSI snapshot-controller DoS"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "CSI Snapshotter",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c=",
                          "version_name": "snapshot-controller v3.0",
                          "version_value": "v3.0.1"
                        },
                        {
                          "version_affected": "\u003c=",
                          "version_name": "snapshot-controller v2.1",
                          "version_value": "v2.1.2"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Kubernetes"
            }
          ]
        }
      },
      "credit": [
        {
          "lang": "eng",
          "value": "Qin Ping"
        }
      ],
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "Kubernetes CSI snapshot-controller prior to v2.1.3 and v3.0.2 could panic when processing a VolumeSnapshot custom resource when: - The VolumeSnapshot referenced a non-existing PersistentVolumeClaim and the VolumeSnapshot did not reference any VolumeSnapshotClass. - The snapshot-controller crashes, is automatically restarted by Kubernetes, and processes the same VolumeSnapshot custom resource after the restart, entering an endless crashloop. Only the volume snapshot feature is affected by this vulnerability. When exploited, users can\u2019t take snapshots of their volumes or delete the snapshots. All other Kubernetes functionality is not affected."
          }
        ]
      },
      "generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-476 NULL Pointer Dereference"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://groups.google.com/g/kubernetes-security-announce/c/1EzCr1qUxxU",
            "refsource": "MISC",
            "url": "https://groups.google.com/g/kubernetes-security-announce/c/1EzCr1qUxxU"
          },
          {
            "name": "https://github.com/kubernetes-csi/external-snapshotter/issues/380",
            "refsource": "MISC",
            "url": "https://github.com/kubernetes-csi/external-snapshotter/issues/380"
          }
        ]
      },
      "source": {
        "defect": [
          "https://github.com/kubernetes-csi/external-snapshotter/issues/380"
        ],
        "discovery": "INTERNAL"
      },
      "work_around": [
        {
          "lang": "eng",
          "value": "Prior to upgrading, this vulnerability can be mitigated by restricting creation of VolumeSnapshot custom resources in API group snapshot.storage.k8s.io only to trusted users."
        }
      ]
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003e=2.1.0 \u003c2.1.3||\u003e=3.0.0 \u003c3.0.2",
          "affected_versions": "All versions starting from 2.1.0 before 2.1.3, all versions starting from 3.0.0 before 3.0.2",
          "cvss_v2": "AV:N/AC:L/Au:S/C:N/I:N/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-476",
            "CWE-937"
          ],
          "date": "2021-02-01",
          "description": "Kubernetes CSI snapshot-controller. When exploited, users can\u2019t take snapshots of their volumes or delete the snapshots. All other Kubernetes functionality is not affected.",
          "fixed_versions": [
            "2.1.3",
            "3.0.2"
          ],
          "identifier": "CVE-2020-8569",
          "identifiers": [
            "CVE-2020-8569"
          ],
          "not_impacted": "",
          "package_slug": "go/github.com/kubernetes-csi/external-snapshotter",
          "pubdate": "2021-01-21",
          "solution": "Unfortunately, there is no solution available yet.",
          "title": "NULL Pointer Dereference",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-8569"
          ],
          "uuid": "35c00e66-437d-49a2-a3d9-1d86ed4f99f7"
        },
        {
          "affected_range": "\u003e=v2.0.0 \u003cv2.1.3",
          "affected_versions": "All versions starting from 2.0.0 before 2.1.3",
          "cvss_v2": "AV:N/AC:L/Au:S/C:N/I:N/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-476",
            "CWE-937"
          ],
          "date": "2022-04-20",
          "description": "Kubernetes CSI snapshot-controller prior to v2.1.3 and v3.0.2 could panic when processing a VolumeSnapshot custom resource when: - The VolumeSnapshot referenced a non-existing PersistentVolumeClaim and the VolumeSnapshot does not reference any VolumeSnapshotClass. - The snapshot-controller crashes, is automatically restarted by Kubernetes, and processes the same VolumeSnapshot custom resource after the restart, entering an endless crashloop. Only the volume snapshot feature is affected by this vulnerability. When exploited, users can\u2019t take snapshots of their volumes or delete the snapshots. All other Kubernetes functionality is not affected.",
          "fixed_versions": [
            "v2.1.3"
          ],
          "identifier": "CVE-2020-8569",
          "identifiers": [
            "GHSA-hwrr-rhmm-vcvf",
            "CVE-2020-8569"
          ],
          "not_impacted": "All versions before 2.0.0, all versions starting from 2.1.3",
          "package_slug": "go/github.com/kubernetes-csi/external-snapshotter/v2",
          "pubdate": "2022-02-15",
          "solution": "Upgrade to version 2.1.3 or above.",
          "title": "NULL Pointer Dereference",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-8569",
            "https://github.com/kubernetes-csi/external-snapshotter/issues/380",
            "https://groups.google.com/g/kubernetes-security-announce/c/1EzCr1qUxxU",
            "https://github.com/advisories/GHSA-hwrr-rhmm-vcvf"
          ],
          "uuid": "55ee98bf-0d7e-4c75-be7b-93a9ebcb4acd",
          "versions": [
            {
              "commit": {
                "sha": "fd8d8a33ddb591fc06197879fb9b4cc6ad7e753a",
                "tags": [
                  "v2.0.0"
                ],
                "timestamp": "20200106204216"
              },
              "number": "v2.0.0"
            },
            {
              "commit": {
                "sha": "7819ee35f860bc370043d875ad6ca09d9fae25dc",
                "tags": [
                  "v2.1.3"
                ],
                "timestamp": "20201211184926"
              },
              "number": "v2.1.3"
            }
          ]
        },
        {
          "affected_range": "\u003e=v3.0.0 \u003cv3.0.2",
          "affected_versions": "All versions starting from 3.0.0 before 3.0.2",
          "cvss_v2": "AV:N/AC:L/Au:S/C:N/I:N/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-476",
            "CWE-937"
          ],
          "date": "2022-04-20",
          "description": "Kubernetes CSI snapshot-controller prior to v2.1.3 and v3.0.2 could panic when processing a VolumeSnapshot custom resource when: - The VolumeSnapshot referenced a non-existing PersistentVolumeClaim and the VolumeSnapshot does not reference any VolumeSnapshotClass. - The snapshot-controller crashes, is automatically restarted by Kubernetes, and processes the same VolumeSnapshot custom resource after the restart, entering an endless crashloop. Only the volume snapshot feature is affected by this vulnerability. When exploited, users can\u2019t take snapshots of their volumes or delete the snapshots. All other Kubernetes functionality is not affected.",
          "fixed_versions": [
            "v3.0.2"
          ],
          "identifier": "CVE-2020-8569",
          "identifiers": [
            "GHSA-hwrr-rhmm-vcvf",
            "CVE-2020-8569"
          ],
          "not_impacted": "All versions before 3.0.0, all versions starting from 3.0.2",
          "package_slug": "go/github.com/kubernetes-csi/external-snapshotter/v3",
          "pubdate": "2022-02-15",
          "solution": "Upgrade to version 3.0.2 or above.",
          "title": "NULL Pointer Dereference",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2020-8569",
            "https://github.com/kubernetes-csi/external-snapshotter/issues/380",
            "https://groups.google.com/g/kubernetes-security-announce/c/1EzCr1qUxxU",
            "https://github.com/advisories/GHSA-hwrr-rhmm-vcvf"
          ],
          "uuid": "22b28f72-0e18-46ed-9f4f-b9b1fd52b0d0",
          "versions": [
            {
              "commit": {
                "sha": "28abcf95d113040090082d2f948c07c53566e36a",
                "tags": [
                  "client/v3.0.0",
                  "v3.0.0"
                ],
                "timestamp": "20200917164845"
              },
              "number": "v3.0.0"
            },
            {
              "commit": {
                "sha": "271a825f20dbb75b11184d84fddc44e7d12cf943",
                "tags": [
                  "v3.0.2"
                ],
                "timestamp": "20201031195051"
              },
              "number": "v3.0.2"
            }
          ]
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:kubernetes:container_storage_interface_snapshotter:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "2.1.3",
                "versionStartIncluding": "2.1.0",
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:kubernetes:container_storage_interface_snapshotter:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "3.0.2",
                "versionStartIncluding": "3.0.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security@kubernetes.io",
          "ID": "CVE-2020-8569"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "Kubernetes CSI snapshot-controller prior to v2.1.3 and v3.0.2 could panic when processing a VolumeSnapshot custom resource when: - The VolumeSnapshot referenced a non-existing PersistentVolumeClaim and the VolumeSnapshot did not reference any VolumeSnapshotClass. - The snapshot-controller crashes, is automatically restarted by Kubernetes, and processes the same VolumeSnapshot custom resource after the restart, entering an endless crashloop. Only the volume snapshot feature is affected by this vulnerability. When exploited, users can\u2019t take snapshots of their volumes or delete the snapshots. All other Kubernetes functionality is not affected."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-476"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "N/A",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://groups.google.com/g/kubernetes-security-announce/c/1EzCr1qUxxU"
            },
            {
              "name": "N/A",
              "refsource": "CONFIRM",
              "tags": [
                "Exploit",
                "Third Party Advisory"
              ],
              "url": "https://github.com/kubernetes-csi/external-snapshotter/issues/380"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P",
            "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": "HIGH",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2021-02-01T19:05Z",
      "publishedDate": "2021-01-21T17:15Z"
    }
  }
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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