gsd-2022-42321
Vulnerability from gsd
Modified
2023-12-13 01:19
Details
Xenstore: Guests can crash xenstored via exhausting the stack Xenstored is using recursion for some Xenstore operations (e.g. for deleting a sub-tree of Xenstore nodes). With sufficiently deep nesting levels this can result in stack exhaustion on xenstored, leading to a crash of xenstored.
Aliases
Aliases
CVE-2022-42321


To clipboard 

{
  "GSD": {
    "alias": "CVE-2022-42321",
    "description": "Xenstore: Guests can crash xenstored via exhausting the stack Xenstored is using recursion for some Xenstore operations (e.g. for deleting a sub-tree of Xenstore nodes). With sufficiently deep nesting levels this can result in stack exhaustion on xenstored, leading to a crash of xenstored.",
    "id": "GSD-2022-42321",
    "references": [
      "https://www.debian.org/security/2022/dsa-5272",
      "https://www.suse.com/security/cve/CVE-2022-42321.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2022-42321"
      ],
      "details": "Xenstore: Guests can crash xenstored via exhausting the stack Xenstored is using recursion for some Xenstore operations (e.g. for deleting a sub-tree of Xenstore nodes). With sufficiently deep nesting levels this can result in stack exhaustion on xenstored, leading to a crash of xenstored.",
      "id": "GSD-2022-42321",
      "modified": "2023-12-13T01:19:10.426625Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security@xen.org",
        "ID": "CVE-2022-42321",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "xen",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "?",
                          "version_value": "consult Xen advisory XSA-418"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Xen"
            }
          ]
        }
      },
      "configuration": {
        "configuration_data": {
          "description": {
            "description_data": [
              {
                "lang": "eng",
                "value": "All versions of Xen are affected.\n\nOnly systems running the C variant of Xenstore (xenstored or xenstore-\nstubdom) are vulnerable.\n\nSystems using the Ocaml variant of Xenstore (oxenstored) are not vulnerable."
              }
            ]
          }
        }
      },
      "credit": {
        "credit_data": {
          "description": {
            "description_data": [
              {
                "lang": "eng",
                "value": "This issue was discovered by David Vrabel of Amazon."
              }
            ]
          }
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "Xenstore: Guests can crash xenstored via exhausting the stack Xenstored is using recursion for some Xenstore operations (e.g. for deleting a sub-tree of Xenstore nodes). With sufficiently deep nesting levels this can result in stack exhaustion on xenstored, leading to a crash of xenstored."
          }
        ]
      },
      "impact": {
        "impact_data": {
          "description": {
            "description_data": [
              {
                "lang": "eng",
                "value": "A malicious guest creating very deep nesting levels of Xenstore nodes\nmight be able to crash xenstored, resulting in a Denial of Service (DoS)\nof Xenstore.\n\nThis will inhibit creation of new guests or changing the configuration of\nalready running guests."
              }
            ]
          }
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "unknown"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://xenbits.xenproject.org/xsa/advisory-418.txt",
            "refsource": "MISC",
            "url": "https://xenbits.xenproject.org/xsa/advisory-418.txt"
          },
          {
            "name": "http://xenbits.xen.org/xsa/advisory-418.html",
            "refsource": "CONFIRM",
            "url": "http://xenbits.xen.org/xsa/advisory-418.html"
          },
          {
            "name": "[oss-security] 20221101 Xen Security Advisory 418 v2 (CVE-2022-42321) - Xenstore: Guests can crash xenstored via exhausting the stack",
            "refsource": "MLIST",
            "url": "http://www.openwall.com/lists/oss-security/2022/11/01/8"
          },
          {
            "name": "DSA-5272",
            "refsource": "DEBIAN",
            "url": "https://www.debian.org/security/2022/dsa-5272"
          },
          {
            "name": "FEDORA-2022-07438e12df",
            "refsource": "FEDORA",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ/"
          },
          {
            "name": "FEDORA-2022-99af00f60e",
            "refsource": "FEDORA",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/"
          },
          {
            "name": "FEDORA-2022-9f51d13fa3",
            "refsource": "FEDORA",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ/"
          },
          {
            "name": "GLSA-202402-07",
            "refsource": "GENTOO",
            "url": "https://security.gentoo.org/glsa/202402-07"
          }
        ]
      },
      "workaround": {
        "workaround_data": {
          "description": {
            "description_data": [
              {
                "lang": "eng",
                "value": "Running oxenstored instead of xenstored will avoid the vulnerability."
              }
            ]
          }
        }
      }
    },
    "nvd.nist.gov": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:xen:xen:-:*:*:*:*:*:*:*",
                    "matchCriteriaId": "BFA1950D-1D9F-4401-AA86-CF3028EFD286",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*",
                    "matchCriteriaId": "80E516C0-98A4-4ADE-B69F-66A772E2BAAA",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*",
                    "matchCriteriaId": "5C675112-476C-4D7C-BCB9-A2FB2D0BC9FD",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E30D0E6F-4AE8-4284-8716-991DFA48CC5D",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "descriptions": [
          {
            "lang": "en",
            "value": "Xenstore: Guests can crash xenstored via exhausting the stack Xenstored is using recursion for some Xenstore operations (e.g. for deleting a sub-tree of Xenstore nodes). With sufficiently deep nesting levels this can result in stack exhaustion on xenstored, leading to a crash of xenstored."
          },
          {
            "lang": "es",
            "value": "Xenstore: los invitados pueden bloquear xenstored al agotar la pila. Xenstored utiliza la recursividad para algunas operaciones de Xenstore (por ejemplo, para eliminar un sub\u00e1rbol de nodos de Xenstore). Con niveles de anidamiento suficientemente profundos, esto puede provocar el agotamiento de la pila en xenstored, lo que provocar\u00e1 un fallo de xenstored."
          }
        ],
        "id": "CVE-2022-42321",
        "lastModified": "2024-02-04T08:15:12.390",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 6.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "CHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 2.0,
              "impactScore": 4.0,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2022-11-01T13:15:11.870",
        "references": [
          {
            "source": "security@xen.org",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2022/11/01/8"
          },
          {
            "source": "security@xen.org",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "http://xenbits.xen.org/xsa/advisory-418.html"
          },
          {
            "source": "security@xen.org",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ/"
          },
          {
            "source": "security@xen.org",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/"
          },
          {
            "source": "security@xen.org",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ/"
          },
          {
            "source": "security@xen.org",
            "url": "https://security.gentoo.org/glsa/202402-07"
          },
          {
            "source": "security@xen.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://www.debian.org/security/2022/dsa-5272"
          },
          {
            "source": "security@xen.org",
            "tags": [
              "Patch",
              "Vendor Advisory"
            ],
            "url": "https://xenbits.xenproject.org/xsa/advisory-418.txt"
          }
        ],
        "sourceIdentifier": "security@xen.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-674"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    }
  }
}


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