155 lines
6.3 KiB
JSON
155 lines
6.3 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2026-23557",
|
|
"assignerOrgId": "23aa2041-22e1-471f-9209-9b7396fa234f",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "XEN",
|
|
"dateReserved": "2026-01-14T13:07:36.961Z",
|
|
"datePublished": "2026-05-19T12:49:42.202Z",
|
|
"dateUpdated": "2026-05-19T14:42:45.464Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"title": "Xenstored DoS via XS_RESET_WATCHES command",
|
|
"datePublic": "2026-04-28T12:00:00.000Z",
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "Any guest can cause xenstored to crash by issuing a XS_RESET_WATCHES\ncommand within a transaction due to an assert() triggering.\n\nIn case xenstored was built with NDEBUG #defined nothing bad will\nhappen, as assert() is doing nothing in this case. Note that the\ndefault is not to define NDEBUG for xenstored builds even in release\nbuilds of Xen."
|
|
}
|
|
],
|
|
"impacts": [
|
|
{
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "Any unprivileged domain can cause xenstored to crash, causing a\nDoS (denial of service) for any Xenstore action. This will result\nin an inability to perform further domain administration on the host."
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"defaultStatus": "unknown",
|
|
"product": "Xen",
|
|
"vendor": "Xen",
|
|
"versions": [
|
|
{
|
|
"status": "unknown",
|
|
"version": "consult Xen advisory XSA-484"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"configurations": [
|
|
{
|
|
"lang": "en",
|
|
"value": "All Xen systems from Xen 4.2 onwards are vulnerable. Systems up to\nXen 4.1 are not vulnerable.\n\nSystems using the C variant of xenstored or xenstore-stubdom built\nwithout NDEBUG are vulnerable. Systems using the OCaml variant of\nXenstore (oxenstored), or the C variant (xenstored or xenstore-stubdom)\nbuilt with NDEBUG defined are not vulnerable."
|
|
}
|
|
],
|
|
"workarounds": [
|
|
{
|
|
"lang": "en",
|
|
"value": "There is no known mitigation available."
|
|
}
|
|
],
|
|
"credits": [
|
|
{
|
|
"lang": "en",
|
|
"type": "finder",
|
|
"value": "This issue was discovered by Andrii Sultanov of Vates."
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://xenbits.xenproject.org/xsa/advisory-484.html"
|
|
}
|
|
],
|
|
"providerMetadata": {
|
|
"orgId": "23aa2041-22e1-471f-9209-9b7396fa234f",
|
|
"shortName": "XEN",
|
|
"dateUpdated": "2026-05-19T12:49:42.202Z"
|
|
}
|
|
},
|
|
"adp": [
|
|
{
|
|
"title": "CVE Program Container",
|
|
"references": [
|
|
{
|
|
"url": "http://www.openwall.com/lists/oss-security/2026/04/28/11"
|
|
},
|
|
{
|
|
"url": "http://xenbits.xen.org/xsa/advisory-484.html"
|
|
}
|
|
],
|
|
"providerMetadata": {
|
|
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
|
|
"shortName": "CVE",
|
|
"dateUpdated": "2026-05-19T13:06:41.611Z"
|
|
}
|
|
},
|
|
{
|
|
"problemTypes": [
|
|
{
|
|
"descriptions": [
|
|
{
|
|
"type": "CWE",
|
|
"cweId": "CWE-617",
|
|
"lang": "en",
|
|
"description": "CWE-617 Reachable Assertion"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"metrics": [
|
|
{
|
|
"cvssV3_1": {
|
|
"scope": "CHANGED",
|
|
"version": "3.1",
|
|
"baseScore": 6.5,
|
|
"attackVector": "LOCAL",
|
|
"baseSeverity": "MEDIUM",
|
|
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
|
|
"integrityImpact": "NONE",
|
|
"userInteraction": "NONE",
|
|
"attackComplexity": "LOW",
|
|
"availabilityImpact": "HIGH",
|
|
"privilegesRequired": "LOW",
|
|
"confidentialityImpact": "NONE"
|
|
}
|
|
},
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"timestamp": "2026-05-19T14:42:12.994792Z",
|
|
"id": "CVE-2026-23557",
|
|
"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": "2026-05-19T14:42:45.464Z"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
} |