{
  "GSD": {
    "alias": "CVE-2022-42330",
    "description": "Guests can cause Xenstore crash via soft reset\n\nWhen a guest issues a \"Soft Reset\" (e.g. for performing a kexec) the\nlibxl based Xen toolstack will normally perform a XS_RELEASE Xenstore\noperation.\n\nDue to a bug in xenstored this can result in a crash of xenstored.\n\nAny other use of XS_RELEASE will have the same impact.",
    "id": "GSD-2022-42330",
    "references": [
      "https://www.suse.com/security/cve/CVE-2022-42330.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2022-42330"
      ],
      "details": "Guests can cause Xenstore crash via soft reset When a guest issues a \"Soft Reset\" (e.g. for performing a kexec) the libxl based Xen toolstack will normally perform a XS_RELEASE Xenstore operation. Due to a bug in xenstored this can result in a crash of xenstored. Any other use of XS_RELEASE will have the same impact.",
      "id": "GSD-2022-42330",
      "modified": "2023-12-13T01:19:10.551992Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security@xen.org",
        "ID": "CVE-2022-42330",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "xen",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "?",
                          "version_value": "consult Xen advisory XSA-425"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Xen"
            }
          ]
        }
      },
      "configuration": {
        "configuration_data": {
          "description": {
            "description_data": [
              {
                "lang": "eng",
                "value": "Only Xen version 4.17 is vulnerable. Systems running an older version\nof Xen are not vulnerable.\n\nAll Xen systems using C xenstored are vulnerable. Systems using the\nOCaml variant of xenstored are not vulnerable.\n\nSystems running only PV guests (x86 only) are not vulnerable, as long as\nthey are using a libxl based toolstack."
              }
            ]
          }
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "Guests can cause Xenstore crash via soft reset When a guest issues a \"Soft Reset\" (e.g. for performing a kexec) the libxl based Xen toolstack will normally perform a XS_RELEASE Xenstore operation. Due to a bug in xenstored this can result in a crash of xenstored. Any other use of XS_RELEASE will have the same impact."
          }
        ]
      },
      "impact": {
        "impact_data": {
          "description": {
            "description_data": [
              {
                "lang": "eng",
                "value": "A malicious guest could try to kexec until it hits the xenstored bug,\nresulting in the inability to perform any further domain administration\nlike starting new guests, or adding/removing resources to or from any\nexisting guest."
              }
            ]
          }
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "unknown"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://xenbits.xenproject.org/xsa/advisory-425.txt",
            "refsource": "MISC",
            "url": "https://xenbits.xenproject.org/xsa/advisory-425.txt"
          },
          {
            "name": "GLSA-202402-07",
            "refsource": "GENTOO",
            "url": "https://security.gentoo.org/glsa/202402-07"
          }
        ]
      },
      "workaround": {
        "workaround_data": {
          "description": {
            "description_data": [
              {
                "lang": "eng",
                "value": "The problem can be avoided by either:\n\n- - using the OCaml xenstored variant\n\n- - explicitly configuring guests to NOT perform the \"Soft Reset\" action\n  by adding:\n    on_soft_reset=\"reboot\"\n  or similar to the guest\u0027s configuration. This will break kexec in the\n  guest, though."
              }
            ]
          }
        }
      }
    },
    "nvd.nist.gov": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:xen:xen:4.17.0:*:*:*:*:*:x64:*",
                    "matchCriteriaId": "7F641815-8FA3-4815-A02F-5D674214D7FC",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "descriptions": [
          {
            "lang": "en",
            "value": "Guests can cause Xenstore crash via soft reset When a guest issues a \"Soft Reset\" (e.g. for performing a kexec) the libxl based Xen toolstack will normally perform a XS_RELEASE Xenstore operation. Due to a bug in xenstored this can result in a crash of xenstored. Any other use of XS_RELEASE will have the same impact."
          }
        ],
        "id": "CVE-2022-42330",
        "lastModified": "2024-02-04T08:15:13.050",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 7.5,
                "baseSeverity": "HIGH",
                "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:H",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2023-01-26T21:16:47.947",
        "references": [
          {
            "source": "security@xen.org",
            "url": "https://security.gentoo.org/glsa/202402-07"
          },
          {
            "source": "security@xen.org",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://xenbits.xenproject.org/xsa/advisory-425.txt"
          }
        ],
        "sourceIdentifier": "security@xen.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-noinfo"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    }
  }
}