148 lines
5.8 KiB
JSON
148 lines
5.8 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-2026-62432",
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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": "2026-07-14T10:28:12.655Z",
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"datePublished": "2026-07-28T12:32:52.043Z",
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"dateUpdated": "2026-07-28T16:33:32.509Z"
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},
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"containers": {
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"cna": {
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"title": "evtchn: Race between FIFO expand and reset",
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"datePublic": "2026-07-28T12:00:00.000Z",
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"descriptions": [
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{
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"lang": "en",
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"value": "The EVTCHNOP_expand_array hypercall checks for whether FIFO event\nchannels are enabled, but without holding the correct lock. It can race\nwith EVTCHNOP_reset, resulting in dereferencing a NULL pointer."
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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": "A malicious HVM guest (x86 HVM or PVH, and ARM) can crash Xen leading to\na denial of service.\n\nA malicious x86 PV guest can most likely crash Xen leading to a denial\nof service, but memory corruption or privilege escalation cannot be\nruled out."
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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-505"
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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": "All Xen versions from 4.5 onwards are vulnerable. Xen versions 4.4 and\nearlier are not 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": "There are no mitigations."
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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-505.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": "2026-07-28T12:32:52.043Z"
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}
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},
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"adp": [
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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-505.html"
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},
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{
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"url": "http://www.openwall.com/lists/oss-security/2026/07/28/21"
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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": "2026-07-28T16:33:32.509Z"
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}
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},
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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-362",
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"lang": "en",
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"description": "CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')"
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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": 7.3,
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"attackVector": "NETWORK",
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"baseSeverity": "HIGH",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
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"integrityImpact": "LOW",
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"userInteraction": "NONE",
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"attackComplexity": "LOW",
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"availabilityImpact": "LOW",
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"privilegesRequired": "NONE",
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"confidentialityImpact": "LOW"
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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": "2026-07-28T15:13:34.638706Z",
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"id": "CVE-2026-62432",
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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": "partial"
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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": "2026-07-28T15:13:39.575Z"
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}
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}
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]
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}
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} |