148 lines
6.4 KiB
JSON
148 lines
6.4 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2026-62433",
|
|
"assignerOrgId": "23aa2041-22e1-471f-9209-9b7396fa234f",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "XEN",
|
|
"dateReserved": "2026-07-14T10:28:12.655Z",
|
|
"datePublished": "2026-07-28T12:32:59.802Z",
|
|
"dateUpdated": "2026-07-28T16:33:33.573Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"title": "correct buffer checks for DM_OP hypercalls",
|
|
"datePublic": "2026-07-28T12:00:00.000Z",
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "Parts of the DM_OP handling code assumes the caller has provided the\nrequired number of buffers for the given operation without any checking\nbeing done. As a result, certain operations might access stack\nrubble as structures are possibly uninitialized."
|
|
}
|
|
],
|
|
"impacts": [
|
|
{
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "A device model of a HVM guest can gain insight on the contents of the\nXen stack, thus possibly leaking data from other guests contexts."
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"defaultStatus": "unknown",
|
|
"product": "Xen",
|
|
"vendor": "Xen",
|
|
"versions": [
|
|
{
|
|
"status": "unknown",
|
|
"version": "consult Xen advisory XSA-506"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"configurations": [
|
|
{
|
|
"lang": "en",
|
|
"value": "All Xen versions from 4.10 onwards are vulnerable. Xen versions 4.9 and\nearlier are not vulnerable.\n\nOnly entities controlling HVM guests can leverage the vulnerability.\nThese are device models running in either a stub domain or de-privileged\nin Dom0."
|
|
}
|
|
],
|
|
"workarounds": [
|
|
{
|
|
"lang": "en",
|
|
"value": "Running only PV or PVH guests will avoid the vulnerability.\n\n(Switching from a device model stub domain or a de-privileged device\nmodel to a fully privileged Dom0 device model does NOT mitigate this\nvulnerability. Rather, it simply recategorises the vulnerability to\nhostile management code, regarding it \"as designed\"; thus it merely\nreclassifies these issues as \"not a bug\". The security of a Xen system\nusing stub domains is still better than with a qemu-dm running as a Dom0\nprocess. Users and vendors of stub qemu dm systems should not change\ntheir configuration to use a Dom0 QEMU process.)"
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://xenbits.xenproject.org/xsa/advisory-506.html"
|
|
}
|
|
],
|
|
"providerMetadata": {
|
|
"orgId": "23aa2041-22e1-471f-9209-9b7396fa234f",
|
|
"shortName": "XEN",
|
|
"dateUpdated": "2026-07-28T12:32:59.802Z"
|
|
}
|
|
},
|
|
"adp": [
|
|
{
|
|
"title": "CVE Program Container",
|
|
"references": [
|
|
{
|
|
"url": "http://xenbits.xen.org/xsa/advisory-506.html"
|
|
},
|
|
{
|
|
"url": "http://www.openwall.com/lists/oss-security/2026/07/28/22"
|
|
}
|
|
],
|
|
"providerMetadata": {
|
|
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
|
|
"shortName": "CVE",
|
|
"dateUpdated": "2026-07-28T16:33:33.573Z"
|
|
}
|
|
},
|
|
{
|
|
"problemTypes": [
|
|
{
|
|
"descriptions": [
|
|
{
|
|
"type": "CWE",
|
|
"cweId": "CWE-665",
|
|
"lang": "en",
|
|
"description": "CWE-665 Improper Initialization"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"metrics": [
|
|
{
|
|
"cvssV3_1": {
|
|
"scope": "UNCHANGED",
|
|
"version": "3.1",
|
|
"baseScore": 7.3,
|
|
"attackVector": "NETWORK",
|
|
"baseSeverity": "HIGH",
|
|
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
|
|
"integrityImpact": "LOW",
|
|
"userInteraction": "NONE",
|
|
"attackComplexity": "LOW",
|
|
"availabilityImpact": "LOW",
|
|
"privilegesRequired": "NONE",
|
|
"confidentialityImpact": "LOW"
|
|
}
|
|
},
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"timestamp": "2026-07-28T15:03:57.527525Z",
|
|
"id": "CVE-2026-62433",
|
|
"options": [
|
|
{
|
|
"Exploitation": "none"
|
|
},
|
|
{
|
|
"Automatable": "yes"
|
|
},
|
|
{
|
|
"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": "2026-07-28T15:06:29.391Z"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
} |