{"id":"CVE-2025-58142","state":"PUBLISHED","title":"Mutiple vulnerabilities in the Viridian interface","description":"[This CNA information record relates to multiple CVEs; the\ntext explains which aspects/vulnerabilities correspond to which CVE.]\n\nThere are multiple issues related to the handling and accessing of guest\nmemory pages in the viridian code:\n\n 1. A NULL pointer dereference in the updating of the reference TSC area.\n    This is CVE-2025-27466.\n\n 2. A NULL pointer dereference by assuming the SIM page is mapped when\n    a synthetic timer message has to be delivered.  This is\n    CVE-2025-58142.\n\n 3. A race in the mapping of the reference TSC page, where a guest can\n    get Xen to free a page while still present in the guest physical to\n    machine (p2m) page tables.  This is CVE-2025-58143.","publishedAt":"2025-09-11T14:05:29.649Z","updatedAt":"2025-11-04T21:13:23.610Z","severity":{"score":9.8,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"XEN","products":["Xen Xen"],"affected":[{"vendor":"Xen","product":"Xen","defaultStatus":"unknown","versions":[{"version":"consult Xen advisory XSA-472","status":"unknown"}]}],"references":["https://xenbits.xenproject.org/xsa/advisory-472.html","http://xenbits.xen.org/xsa/advisory-472.html","http://www.openwall.com/lists/oss-security/2025/09/09/1"],"weaknesses":["CWE-395"],"ingestedAt":"2026-10-29T20:09:39.787Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/58xxx/CVE-2025-58142.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-58142","state":"PUBLISHED","datePublished":"2025-09-11T14:05:29.649Z","dateUpdated":"2025-11-04T21:13:23.610Z","assignerShortName":"XEN","assignerOrgId":"23aa2041-22e1-471f-9209-9b7396fa234f","dateReserved":"2025-08-26T06:48:41.442Z"},"containers":{"cna":{"title":"Mutiple vulnerabilities in the Viridian interface","descriptions":[{"lang":"en","value":"[This CNA information record relates to multiple CVEs; the\ntext explains which aspects/vulnerabilities correspond to which CVE.]\n\nThere are multiple issues related to the handling and accessing of guest\nmemory pages in the viridian code:\n\n 1. A NULL pointer dereference in the updating of the reference TSC area.\n    This is CVE-2025-27466.\n\n 2. A NULL pointer dereference by assuming the SIM page is mapped when\n    a synthetic timer message has to be delivered.  This is\n    CVE-2025-58142.\n\n 3. A race in the mapping of the reference TSC page, where a guest can\n    get Xen to free a page while still present in the guest physical to\n    machine (p2m) page tables.  This is CVE-2025-58143."}],"affected":[{"vendor":"Xen","product":"Xen","defaultStatus":"unknown","versions":[{"version":"consult Xen advisory XSA-472","status":"unknown"}]}],"references":[{"url":"https://xenbits.xenproject.org/xsa/advisory-472.html"}],"providerMetadata":{"shortName":"XEN","orgId":"23aa2041-22e1-471f-9209-9b7396fa234f","dateUpdated":"2025-09-11T14:05:29.649Z"},"datePublic":"2025-09-09T11:53:00.000Z","impacts":[{"descriptions":[{"lang":"en","value":"Denial of Service (DoS) affecting the entire host, information leaks, or\nelevation of privilege."}]}],"configurations":[{"lang":"en","value":"Xen versions 4.13 and newer are vulnerable.  Xen versions 4.12 and older\nare not vulnerable.\n\nOnly x86 HVM guests which have the reference_tsc or stimer viridian\nextensions enabled are vulnerable."}],"workarounds":[{"lang":"en","value":"Not enabling the reference_tsc and stimer viridian extensions will avoid\nthe issues."}],"credits":[{"lang":"en","type":"finder","value":"This issue was discovered by Roger Pau Monné of XenServer."}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":9.8,"attackVector":"NETWORK","baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-09-11T14:24:28.317871Z","id":"CVE-2025-58142","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-395","type":"CWE","lang":"en","description":"CWE-395 Use of NullPointerException Catch to Detect NULL Pointer Dereference"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-09-11T14:41:07.805Z"}},{"title":"CVE Program Container","references":[{"url":"http://xenbits.xen.org/xsa/advisory-472.html"},{"url":"http://www.openwall.com/lists/oss-security/2025/09/09/1"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-11-04T21:13:23.610Z"}}]}}}