155 lines
6.5 KiB
JSON
155 lines
6.5 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2025-27466",
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"assignerOrgId": "23aa2041-22e1-471f-9209-9b7396fa234f",
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"state": "PUBLISHED",
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"assignerShortName": "XEN",
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"dateReserved": "2025-02-26T09:16:54.462Z",
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"datePublished": "2025-09-11T14:05:29.525Z",
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"dateUpdated": "2025-11-04T21:09:51.419Z"
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},
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"containers": {
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"cna": {
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"title": "Mutiple vulnerabilities in the Viridian interface",
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"datePublic": "2025-09-09T11:53:00.000Z",
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"descriptions": [
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{
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"lang": "en",
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"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."
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}
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],
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"impacts": [
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{
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"descriptions": [
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{
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"lang": "en",
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"value": "Denial of Service (DoS) affecting the entire host, information leaks, or\nelevation of privilege."
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}
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]
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}
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],
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"affected": [
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{
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"defaultStatus": "unknown",
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"product": "Xen",
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"vendor": "Xen",
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"versions": [
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{
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"status": "unknown",
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"version": "consult Xen advisory XSA-472"
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}
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]
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}
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],
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"configurations": [
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{
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"lang": "en",
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"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."
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}
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],
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"workarounds": [
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{
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"lang": "en",
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"value": "Not enabling the reference_tsc and stimer viridian extensions will avoid\nthe issues."
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}
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],
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"credits": [
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{
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"lang": "en",
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"type": "finder",
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"value": "This issue was discovered by Roger Pau Monné of XenServer."
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}
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],
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"references": [
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{
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"url": "https://xenbits.xenproject.org/xsa/advisory-472.html"
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}
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],
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"providerMetadata": {
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"orgId": "23aa2041-22e1-471f-9209-9b7396fa234f",
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"shortName": "XEN",
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"dateUpdated": "2025-09-11T14:05:29.525Z"
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}
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},
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"adp": [
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{
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"problemTypes": [
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{
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"descriptions": [
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{
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"type": "CWE",
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"cweId": "CWE-395",
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"lang": "en",
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"description": "CWE-395 Use of NullPointerException Catch to Detect NULL Pointer Dereference"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"scope": "UNCHANGED",
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"version": "3.1",
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"baseScore": 9.8,
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"attackVector": "NETWORK",
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"baseSeverity": "CRITICAL",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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"integrityImpact": "HIGH",
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"userInteraction": "NONE",
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"attackComplexity": "LOW",
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"availabilityImpact": "HIGH",
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"privilegesRequired": "NONE",
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"confidentialityImpact": "HIGH"
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}
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},
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2025-09-11T14:25:53.637084Z",
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"id": "CVE-2025-27466",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "yes"
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},
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{
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"Technical Impact": "total"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2025-09-11T14:40:33.401Z"
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}
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},
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{
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"title": "CVE Program Container",
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"references": [
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{
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"url": "http://xenbits.xen.org/xsa/advisory-472.html"
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},
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{
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"url": "http://www.openwall.com/lists/oss-security/2025/09/09/1"
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}
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],
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"providerMetadata": {
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"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"shortName": "CVE",
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"dateUpdated": "2025-11-04T21:09:51.419Z"
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}
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}
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]
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}
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} |