{"api_version":"1","generated_at":"2026-04-22T21:39:01+00:00","cve":"CVE-2022-42330","urls":{"html":"https://cve.report/CVE-2022-42330","api":"https://cve.report/api/cve/CVE-2022-42330.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2022-42330","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2022-42330"},"summary":{"title":"CVE-2022-42330","description":"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.","state":"PUBLIC","assigner":"security@xen.org","published_at":"2023-01-26 21:16:00","updated_at":"2024-02-04 08:15:00"},"problem_types":["NVD-CWE-noinfo"],"metrics":[],"references":[{"url":"https://security.gentoo.org/glsa/202402-07","name":"GLSA-202402-07","refsource":"","tags":[],"title":"Xen: Multiple Vulnerabilities (GLSA 202402-07) — Gentoo security","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://xenbits.xenproject.org/xsa/advisory-425.txt","name":"https://xenbits.xenproject.org/xsa/advisory-425.txt","refsource":"MISC","tags":[],"title":"","mime":"text/plain","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-42330","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-42330","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2022","cve_id":"42330","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"xen","cpe5":"xen","cpe6":"4.17.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"x64","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2022-42330","qid":"183452","title":"Debian Security Update for xen (CVE-2022-42330)"},{"cve":"CVE-2022-42330","qid":"503144","title":"Alpine Linux Security Update for xen"},{"cve":"CVE-2022-42330","qid":"505965","title":"Alpine Linux Security Update for xen"},{"cve":"CVE-2022-42330","qid":"710858","title":"Gentoo Linux Xen Multiple Vulnerabilities (GLSA 202402-07)"}]},"source_records":{"cve_program":{"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":[{"url":"https://xenbits.xenproject.org/xsa/advisory-425.txt","refsource":"MISC","name":"https://xenbits.xenproject.org/xsa/advisory-425.txt"}]},"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's configuration. This will break kexec in the\n  guest, though."}]}}}},"nvd":{"publishedDate":"2023-01-26 21:16:00","lastModifiedDate":"2024-02-04 08:15:00","problem_types":["NVD-CWE-noinfo"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:xen:xen:4.17.0:*:*:*:*:*:x64:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":null,"notes":[]}}}