Show plain JSON{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-6563", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2023-12-06T18:47:35.594Z", "datePublished": "2023-12-14T18:01:26.005Z", "dateUpdated": "2024-11-23T03:38:39.154Z"}, "containers": {"cna": {"title": "Keycloak: offline session token dos", "metrics": [{"other": {"content": {"value": "Important", "namespace": "https://access.redhat.com/security/updates/classification/"}, "type": "Red Hat severity rating"}}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.7, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H", "version": "3.1"}, "format": "CVSS"}], "descriptions": [{"lang": "en", "value": "An unconstrained memory consumption vulnerability was discovered in Keycloak. It can be triggered in environments which have millions of offline tokens (> 500,000 users with each having at least 2 saved sessions). If an attacker creates two or more user sessions and then open the \"consents\" tab of the admin User Interface, the UI attempts to load a huge number of offline client sessions leading to excessive memory and CPU consumption which could potentially crash the entire system."}], "affected": [{"vendor": "Red Hat", "product": "Red Hat Single Sign-On 7.6 for RHEL 7", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "rh-sso7-keycloak", "defaultStatus": "affected", "versions": [{"version": "0:18.0.11-2.redhat_00003.1.el7sso", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:red_hat_single_sign_on:7.6::el7"]}, {"vendor": "Red Hat", "product": "Red Hat Single Sign-On 7.6 for RHEL 8", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "rh-sso7-keycloak", "defaultStatus": "affected", "versions": [{"version": "0:18.0.11-2.redhat_00003.1.el8sso", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:red_hat_single_sign_on:7.6::el8"]}, {"vendor": "Red Hat", "product": "Red Hat Single Sign-On 7.6 for RHEL 9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "rh-sso7-keycloak", "defaultStatus": "affected", "versions": [{"version": "0:18.0.11-2.redhat_00003.1.el9sso", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:red_hat_single_sign_on:7.6::el9"]}, {"vendor": "Red Hat", "product": "RHEL-8 based Middleware Containers", "collectionURL": "https://catalog.redhat.com/software/containers/", "packageName": "rh-sso-7/sso76-openshift-rhel8", "defaultStatus": "affected", "versions": [{"version": "7.6-38", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:rhosemc:1.0::el8"]}, {"vendor": "Red Hat", "product": "RHEL-8 based Middleware Containers", "collectionURL": "https://catalog.redhat.com/software/containers/", "packageName": "rh-sso-7/sso7-rhel8-operator-bundle", "defaultStatus": "affected", "versions": [{"version": "7.6.6-2", "lessThan": "*", "versionType": "rpm", "status": "unaffected"}], "cpes": ["cpe:/a:redhat:rhosemc:1.0::el8"]}, {"vendor": "Red Hat", "product": "Single Sign-On 7.6.6", "collectionURL": "https://access.redhat.com/jbossnetwork/restricted/listSoftware.html", "defaultStatus": "unaffected", "packageName": "keycloak-core", "cpes": ["cpe:/a:redhat:red_hat_single_sign_on:7.6.6"]}, {"vendor": "Red Hat", "product": "Red Hat Build of Keycloak", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "keycloak-core", "defaultStatus": "affected", "cpes": ["cpe:/a:redhat:build_keycloak:"]}], "references": [{"url": "https://access.redhat.com/errata/RHSA-2023:7854", "name": "RHSA-2023:7854", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2023:7855", "name": "RHSA-2023:7855", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2023:7856", "name": "RHSA-2023:7856", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2023:7857", "name": "RHSA-2023:7857", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2023:7858", "name": "RHSA-2023:7858", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/security/cve/CVE-2023-6563", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2253308", "name": "RHBZ#2253308", "tags": ["issue-tracking", "x_refsource_REDHAT"]}, {"url": "https://github.com/keycloak/keycloak/issues/13340"}], "datePublic": "2023-12-14T00:00:00+00:00", "problemTypes": [{"descriptions": [{"cweId": "CWE-770", "description": "Allocation of Resources Without Limits or Throttling", "lang": "en", "type": "CWE"}]}], "x_redhatCweChain": "CWE-770: Allocation of Resources Without Limits or Throttling", "workarounds": [{"lang": "en", "value": "There are three main options to prevent exploitation:\n1) If you are using a reverse proxy, block the consents URL.\n2) This option is less effective: remove the consents application tab from the account console theme.\n3) This option has a significant negative impact on end users: entirely disable offline user profiles."}], "timeline": [{"lang": "en", "time": "2023-12-06T00:00:00+00:00", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2023-12-14T00:00:00+00:00", "value": "Made public."}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2024-11-23T03:38:39.154Z"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T08:35:14.663Z"}, "title": "CVE Program Container", "references": [{"url": "https://access.redhat.com/errata/RHSA-2023:7854", "name": "RHSA-2023:7854", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://access.redhat.com/errata/RHSA-2023:7855", "name": "RHSA-2023:7855", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://access.redhat.com/errata/RHSA-2023:7856", "name": "RHSA-2023:7856", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://access.redhat.com/errata/RHSA-2023:7857", "name": "RHSA-2023:7857", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://access.redhat.com/errata/RHSA-2023:7858", "name": "RHSA-2023:7858", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://access.redhat.com/security/cve/CVE-2023-6563", "tags": ["vdb-entry", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2253308", "name": "RHBZ#2253308", "tags": ["issue-tracking", "x_refsource_REDHAT", "x_transferred"]}, {"url": "https://github.com/keycloak/keycloak/issues/13340", "tags": ["x_transferred"]}]}]}}