{"api_version":"1","generated_at":"2026-04-23T08:03:21+00:00","cve":"CVE-2018-7542","urls":{"html":"https://cve.report/CVE-2018-7542","api":"https://cve.report/api/cve/CVE-2018-7542.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2018-7542","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-7542"},"summary":{"title":"CVE-2018-7542","description":"An issue was discovered in Xen 4.8.x through 4.10.x allowing x86 PVH guest OS users to cause a denial of service (NULL pointer dereference and hypervisor crash) by leveraging the mishandling of configurations that lack a Local APIC.","state":"PUBLIC","assigner":"cve@mitre.org","published_at":"2018-02-27 19:29:00","updated_at":"2018-10-31 10:32:00"},"problem_types":["CWE-476"],"metrics":[],"references":[{"url":"http://www.securitytracker.com/id/1040776","name":"1040776","refsource":"SECTRACK","tags":[],"title":"Xen Local APIC Error Lets Local Users on a Guest System Cause Denial of Service Conditions on the Host System - SecurityTracker","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://security.gentoo.org/glsa/201810-06","name":"GLSA-201810-06","refsource":"GENTOO","tags":[],"title":"Xen: Multiple vulnerabilities (GLSA 201810-06) — Gentoo security","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://www.debian.org/security/2018/dsa-4131","name":"DSA-4131","refsource":"DEBIAN","tags":["Third Party Advisory"],"title":"Debian -- Security Information -- DSA-4131-1 xen","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://xenbits.xen.org/xsa/advisory-256.html","name":"https://xenbits.xen.org/xsa/advisory-256.html","refsource":"CONFIRM","tags":["Vendor Advisory"],"title":"XSA-256 - Xen Security Advisories","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-7542","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-7542","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2018","cve_id":"7542","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"9.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"7542","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"debian","cpe5":"debian_linux","cpe6":"9.0","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2018","cve_id":"7542","vulnerable":"1","versionEndIncluding":"4.10.0","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"xen","cpe5":"xen","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[{"cve":"CVE-2018-7542","qid":"500747","title":"Alpine Linux Security Update for xen"},{"cve":"CVE-2018-7542","qid":"504524","title":"Alpine Linux Security Update for xen"},{"cve":"CVE-2018-7542","qid":"710221","title":"Gentoo Linux Xen Multiple Vulnerabilities (GLSA 201810-06)"}]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"cve@mitre.org","ID":"CVE-2018-7542","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"n/a","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"n/a"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"An issue was discovered in Xen 4.8.x through 4.10.x allowing x86 PVH guest OS users to cause a denial of service (NULL pointer dereference and hypervisor crash) by leveraging the mishandling of configurations that lack a Local APIC."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"n/a"}]}]},"references":{"reference_data":[{"name":"https://xenbits.xen.org/xsa/advisory-256.html","refsource":"CONFIRM","url":"https://xenbits.xen.org/xsa/advisory-256.html"},{"name":"GLSA-201810-06","refsource":"GENTOO","url":"https://security.gentoo.org/glsa/201810-06"},{"name":"1040776","refsource":"SECTRACK","url":"http://www.securitytracker.com/id/1040776"},{"name":"DSA-4131","refsource":"DEBIAN","url":"https://www.debian.org/security/2018/dsa-4131"}]}},"nvd":{"publishedDate":"2018-02-27 19:29:00","lastModifiedDate":"2018-10-31 10:32:00","problem_types":["CWE-476"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.0","vectorString":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM"},"exploitabilityScore":2,"impactScore":4},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:L/AC:L/Au:N/C:N/I:N/A:C","accessVector":"LOCAL","accessComplexity":"LOW","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"COMPLETE","baseScore":4.9},"severity":"MEDIUM","exploitabilityScore":3.9,"impactScore":6.9,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*","versionStartIncluding":"4.8.0","versionEndIncluding":"4.10.0","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2018","CveId":"7542","Ordinal":"123825","Title":"CVE-2018-7542","CVE":"CVE-2018-7542","Year":"2018"},"notes":[{"CveYear":"2018","CveId":"7542","Ordinal":"1","NoteData":"An issue was discovered in Xen 4.8.x through 4.10.x allowing x86 PVH guest OS users to cause a denial of service (NULL pointer dereference and hypervisor crash) by leveraging the mishandling of configurations that lack a Local APIC.","Type":"Description","Title":null},{"CveYear":"2018","CveId":"7542","Ordinal":"2","NoteData":"2018-02-27","Type":"Other","Title":"Published"},{"CveYear":"2018","CveId":"7542","Ordinal":"3","NoteData":"2018-10-31","Type":"Other","Title":"Modified"}]}}}