351 lines
14 KiB
JSON
351 lines
14 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-2026-71227",
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"assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
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"state": "PUBLISHED",
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"assignerShortName": "redhat",
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"dateReserved": "2026-08-05T09:15:14.859Z",
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"datePublished": "2026-08-05T12:42:10.427Z",
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"dateUpdated": "2026-11-02T05:13:20.482Z"
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},
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"containers": {
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"cna": {
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"title": "Libkcapi: infinite loop denial of service in libkcapi _kcapi_aio_read_all() due to unhandled io_getevents() timeout return",
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"metrics": [
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{
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"other": {
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"content": {
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"value": "Moderate",
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"namespace": "https://access.redhat.com/security/updates/classification/"
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},
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"type": "Red Hat severity rating"
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}
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},
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{
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"cvssV3_1": {
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"attackComplexity": "HIGH",
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"attackVector": "LOCAL",
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"availabilityImpact": "HIGH",
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"baseScore": 5.1,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "NONE",
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"integrityImpact": "NONE",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"version": "3.1"
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},
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"format": "CVSS"
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}
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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 flaw was found in libkcapi. A local attacker can influence an application that uses the Asynchronous Input/Output (AIO) interface. By reusing an AIO-enabled handle after a prior completion error, the _kcapi_aio_read_all() function can enter a non-terminating wait loop. This can lead to a persistent denial of service, making the affected application or thread unresponsive."
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}
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],
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"affected": [
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{
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"repo": "https://github.com/smuellerDD/libkcapi",
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"vendor": "Stephan Muelle",
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"product": "libkcapi",
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"versions": [
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{
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"status": "affected",
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"version": "0.12.0",
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"lessThan": "1.5.1",
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"versionType": "semver"
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}
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],
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"defaultStatus": "unaffected"
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},
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{
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"vendor": "Red Hat",
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"product": "Red Hat Enterprise Linux 10",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "libkcapi",
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"defaultStatus": "affected",
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"versions": [
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{
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"version": "0:1.5.1-1.el10_2",
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"lessThan": "*",
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"versionType": "rpm",
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"status": "unaffected"
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}
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],
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"cpes": [
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"cpe:/o:redhat:enterprise_linux:10.2"
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]
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},
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{
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"vendor": "Red Hat",
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"product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "libkcapi",
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"defaultStatus": "affected",
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"versions": [
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{
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"version": "0:1.5.0-6.el10_0",
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"lessThan": "*",
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"versionType": "rpm",
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"status": "unaffected"
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}
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],
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"cpes": [
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"cpe:/o:redhat:enterprise_linux_eus:10.0"
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]
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},
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{
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"vendor": "Red Hat",
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"product": "Red Hat Enterprise Linux 8",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "libkcapi",
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"defaultStatus": "affected",
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"versions": [
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{
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"version": "0:1.4.0-3.el8_10",
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"lessThan": "*",
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"versionType": "rpm",
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"status": "unaffected"
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}
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],
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"cpes": [
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"cpe:/o:redhat:enterprise_linux:8::baseos"
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]
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},
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{
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"vendor": "Red Hat",
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"product": "Red Hat Enterprise Linux 9",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "libkcapi",
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"defaultStatus": "affected",
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"versions": [
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{
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"version": "0:1.4.0-3.el9_8",
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"lessThan": "*",
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"versionType": "rpm",
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"status": "unaffected"
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}
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],
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"cpes": [
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"cpe:/o:redhat:enterprise_linux:9::baseos"
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]
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},
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{
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"vendor": "Red Hat",
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"product": "Red Hat Enterprise Linux 9.6 Extended Update Support",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "libkcapi",
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"defaultStatus": "affected",
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"versions": [
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{
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"version": "0:1.4.0-2.el9_6.1",
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"lessThan": "*",
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"versionType": "rpm",
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"status": "unaffected"
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}
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],
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"cpes": [
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"cpe:/o:redhat:rhel_eus:9.6::baseos"
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]
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},
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{
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"vendor": "Red Hat",
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"product": "Red Hat Hardened Images",
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"collectionURL": "https://catalog.redhat.com/software/containers/",
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"packageName": "libkcapi-main",
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"defaultStatus": "affected",
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"versions": [
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{
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"version": "1.5.1-0.1.hum1",
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"lessThan": "*",
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"versionType": "rpm",
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"status": "unaffected"
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}
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],
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"cpes": [
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"cpe:/a:redhat:hummingbird:1"
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]
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},
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{
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"vendor": "Red Hat",
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"product": "Red Hat OpenShift Container Platform 4",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "openshift/ose-rhel-coreos-8",
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"defaultStatus": "affected",
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"cpes": [
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"cpe:/a:redhat:openshift:4"
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]
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},
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{
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"vendor": "Red Hat",
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"product": "Red Hat OpenShift Container Platform 4",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "openshift/ose-rhel-coreos-9",
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"defaultStatus": "affected",
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"cpes": [
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"cpe:/a:redhat:openshift:4"
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]
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},
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{
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"vendor": "Red Hat",
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"product": "Red Hat OpenShift Container Platform 5",
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"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
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"packageName": "openshift/ose-rhel-coreos-9",
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"defaultStatus": "affected",
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"cpes": [
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"cpe:/a:redhat:openshift:5"
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]
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}
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],
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"references": [
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{
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"url": "https://access.redhat.com/errata/RHSA-2026:56985",
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"name": "RHSA-2026:56985",
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"tags": [
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"vendor-advisory",
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"x_refsource_REDHAT"
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]
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},
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{
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"url": "https://access.redhat.com/errata/RHSA-2026:67265",
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"name": "RHSA-2026:67265",
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"tags": [
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"vendor-advisory",
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"x_refsource_REDHAT"
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]
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},
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{
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"url": "https://access.redhat.com/errata/RHSA-2026:67266",
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"name": "RHSA-2026:67266",
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"tags": [
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"vendor-advisory",
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"x_refsource_REDHAT"
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]
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},
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{
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"url": "https://access.redhat.com/errata/RHSA-2026:67267",
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"name": "RHSA-2026:67267",
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"tags": [
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"vendor-advisory",
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"x_refsource_REDHAT"
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]
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},
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{
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"url": "https://access.redhat.com/errata/RHSA-2026:69285",
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"name": "RHSA-2026:69285",
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"tags": [
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"vendor-advisory",
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"x_refsource_REDHAT"
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]
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},
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{
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"url": "https://access.redhat.com/errata/RHSA-2026:87712",
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"name": "RHSA-2026:87712",
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"tags": [
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"vendor-advisory",
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"x_refsource_REDHAT"
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]
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},
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{
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"url": "https://access.redhat.com/security/cve/CVE-2026-71227",
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"tags": [
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"vdb-entry",
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"x_refsource_REDHAT"
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]
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},
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{
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2462867",
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"name": "RHBZ#2462867",
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"tags": [
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"issue-tracking",
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"x_refsource_REDHAT"
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]
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}
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],
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"datePublic": "2026-08-05T12:29:09.516Z",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-835",
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"description": "Loop with Unreachable Exit Condition",
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"lang": "en",
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"type": "CWE"
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}
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]
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}
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],
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"x_redhatCweChain": "CWE-835: Loop with Unreachable Exit Condition",
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"workarounds": [
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{
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"lang": "en",
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"value": "To mitigate this issue, applications should avoid initializing `libkcapi` handles with `KCAPI_INIT_AIO` if AIO functionality is not strictly required. If AIO must be used, applications should destroy and reinitialize `libkcapi` handles after any AIO completion error, rather than reusing them for subsequent AIO operations."
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}
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],
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"timeline": [
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{
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"lang": "en",
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"time": "2026-04-26T20:17:44.000Z",
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"value": "Reported to Red Hat."
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},
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{
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"lang": "en",
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"time": "2026-08-05T12:29:09.516Z",
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"value": "Made public."
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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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"value": "This issue was discovered by Found by AISLE in partnership with Red Hat."
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}
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],
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"providerMetadata": {
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"dateUpdated": "2026-11-02T05:13:20.482Z"
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},
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"x_generator": {
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"adp": [
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{
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"metrics": [
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"content": {
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"timestamp": "2026-08-05T13:10:05.043014Z",
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"id": "CVE-2026-71227",
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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": "no"
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},
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"Technical Impact": "partial"
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} |