139 lines
5.7 KiB
JSON
139 lines
5.7 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2026-42490",
|
|
"assignerOrgId": "23aa2041-22e1-471f-9209-9b7396fa234f",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "XEN",
|
|
"dateReserved": "2026-04-27T14:20:24.139Z",
|
|
"datePublished": "2026-06-18T13:47:13.257Z",
|
|
"dateUpdated": "2026-06-18T15:04:50.692Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"title": "domctl lock open to abuse",
|
|
"datePublic": "2026-06-09T12:00:00.000Z",
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "[This CNA information record relates to multiple CVEs; the\ntext explains which aspects/vulnerabilities correspond to which CVE.]\n\nTo create and manage guests, domctl operations are used by the control\ndomain, a possible Xenstore domain, or by a domain controlling a\nparticular guest. Some of these operations may not be executed in\nparallel, so a system-wide lock is used. The way that lock is acquired\nis, however, not providing any fairness. This is CVE-2026-42489.\n\nFurthermore, with XSM/Flask in use, the lock acquire will, for some\noperations, occur ahead of any permission checking. This is\nCVE-2026-42490."
|
|
}
|
|
],
|
|
"impacts": [
|
|
{
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "A less privileged entity may stall an equally or more privileged entity,\npotentially leading to a Denial od Service (DoS) of up to the entire\nhost."
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"defaultStatus": "unknown",
|
|
"product": "Xen",
|
|
"vendor": "Xen",
|
|
"versions": [
|
|
{
|
|
"status": "unknown",
|
|
"version": "consult Xen advisory XSA-492"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"configurations": [
|
|
{
|
|
"lang": "en",
|
|
"value": "All Xen versions from 3.3 onwards are vulnerable. Earlier versions use\na different locking operation, but may also be vulnerable."
|
|
}
|
|
],
|
|
"workarounds": [
|
|
{
|
|
"lang": "en",
|
|
"value": "There is no known mitigation."
|
|
}
|
|
],
|
|
"credits": [
|
|
{
|
|
"lang": "en",
|
|
"type": "finder",
|
|
"value": "This issue was discovered by Andrew Cooper of Citrix."
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://xenbits.xenproject.org/xsa/advisory-492.html"
|
|
}
|
|
],
|
|
"providerMetadata": {
|
|
"orgId": "23aa2041-22e1-471f-9209-9b7396fa234f",
|
|
"shortName": "XEN",
|
|
"dateUpdated": "2026-06-18T13:47:13.257Z"
|
|
}
|
|
},
|
|
"adp": [
|
|
{
|
|
"problemTypes": [
|
|
{
|
|
"descriptions": [
|
|
{
|
|
"type": "CWE",
|
|
"cweId": "CWE-667",
|
|
"lang": "en",
|
|
"description": "CWE-667 Improper Locking"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"metrics": [
|
|
{
|
|
"cvssV3_1": {
|
|
"scope": "UNCHANGED",
|
|
"version": "3.1",
|
|
"baseScore": 6.5,
|
|
"attackVector": "NETWORK",
|
|
"baseSeverity": "MEDIUM",
|
|
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
|
|
"integrityImpact": "NONE",
|
|
"userInteraction": "NONE",
|
|
"attackComplexity": "LOW",
|
|
"availabilityImpact": "HIGH",
|
|
"privilegesRequired": "LOW",
|
|
"confidentialityImpact": "NONE"
|
|
}
|
|
},
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"timestamp": "2026-06-18T15:04:47.308725Z",
|
|
"id": "CVE-2026-42490",
|
|
"options": [
|
|
{
|
|
"Exploitation": "none"
|
|
},
|
|
{
|
|
"Automatable": "no"
|
|
},
|
|
{
|
|
"Technical Impact": "partial"
|
|
}
|
|
],
|
|
"role": "CISA Coordinator",
|
|
"version": "2.0.3"
|
|
}
|
|
}
|
|
}
|
|
],
|
|
"title": "CISA ADP Vulnrichment",
|
|
"providerMetadata": {
|
|
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
|
|
"shortName": "CISA-ADP",
|
|
"dateUpdated": "2026-06-18T15:04:50.692Z"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
} |