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{"acknowledgement": "Red Hat would like to thank Pontus Hanssen (Pontus.Hanssen@omegapoint.se) for reporting this issue.", "affected_release": [{"advisory": "RHSA-2024:0100", "cpe": "cpe:/a:redhat:build_keycloak:22::el9", "package": "rhbk/keycloak-rhel9:22-7", "product_name": "Red Hat build of Keycloak 22", "release_date": "2024-01-09T00:00:00Z"}, {"advisory": "RHSA-2024:0101", "cpe": "cpe:/a:redhat:build_keycloak:22", "package": "keycloak-core", "product_name": "Red Hat build of Keycloak 22.0.8", "release_date": "2024-01-09T00:00:00Z"}, {"advisory": "RHSA-2024:0804", "cpe": "cpe:/a:redhat:red_hat_single_sign_on:7.6", "package": "keycloak-core", "product_name": "Red Hat Single Sign-On 7", "release_date": "2024-02-13T00:00:00Z"}, {"advisory": "RHSA-2024:0094", "cpe": "cpe:/a:redhat:red_hat_single_sign_on:7.6::el7", "package": "rh-sso7-keycloak-0:18.0.11-3.redhat_00001.1.el7sso", "product_name": "Red Hat Single Sign-On 7.6 for RHEL 7", "release_date": "2024-01-09T00:00:00Z"}, {"advisory": "RHSA-2024:0798", "cpe": "cpe:/a:redhat:red_hat_single_sign_on:7.6::el7", "package": "rh-sso7-keycloak-0:18.0.12-1.redhat_00001.1.el7sso", "product_name": "Red Hat Single Sign-On 7.6 for RHEL 7", "release_date": "2024-02-13T00:00:00Z"}, {"advisory": "RHSA-2024:0095", "cpe": "cpe:/a:redhat:red_hat_single_sign_on:7.6::el8", "package": "rh-sso7-keycloak-0:18.0.11-3.redhat_00001.1.el8sso", "product_name": "Red Hat Single Sign-On 7.6 for RHEL 8", "release_date": "2024-01-09T00:00:00Z"}, {"advisory": "RHSA-2024:0799", "cpe": "cpe:/a:redhat:red_hat_single_sign_on:7.6::el8", "package": "rh-sso7-keycloak-0:18.0.12-1.redhat_00001.1.el8sso", "product_name": "Red Hat Single Sign-On 7.6 for RHEL 8", "release_date": "2024-02-13T00:00:00Z"}, {"advisory": "RHSA-2024:0096", "cpe": "cpe:/a:redhat:red_hat_single_sign_on:7.6::el9", "package": "rh-sso7-keycloak-0:18.0.11-3.redhat_00001.1.el9sso", "product_name": "Red Hat Single Sign-On 7.6 for RHEL 9", "release_date": "2024-01-09T00:00:00Z"}, {"advisory": "RHSA-2024:0800", "cpe": "cpe:/a:redhat:red_hat_single_sign_on:7.6::el9", "package": "rh-sso7-keycloak-0:18.0.12-1.redhat_00001.1.el9sso", "product_name": "Red Hat Single Sign-On 7.6 for RHEL 9", "release_date": "2024-02-13T00:00:00Z"}, {"advisory": "RHSA-2024:0097", "cpe": "cpe:/a:redhat:rhosemc:1.0::el8", "package": "rh-sso-7/sso76-openshift-rhel8:7.6-39", "product_name": "RHEL-8 based Middleware Containers", "release_date": "2024-01-09T00:00:00Z"}, {"advisory": "RHSA-2024:0801", "cpe": "cpe:/a:redhat:rhosemc:1.0::el8", "package": "rh-sso-7/sso76-openshift-rhel8:7.6-41", "product_name": "RHEL-8 based Middleware Containers", "release_date": "2024-02-13T00:00:00Z"}, {"advisory": "RHSA-2024:0098", "cpe": "cpe:/a:redhat:red_hat_single_sign_on:7.6.6", "package": "keycloak-core", "product_name": "Single Sign-On 7.6.6", "release_date": "2024-01-09T00:00:00Z"}], "bugzilla": {"description": "keycloak: open redirect via \"form_post.jwt\" JARM response mode", "id": "2255027", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2255027"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.6", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N", "status": "verified"}, "cwe": "CWE-601", "details": ["A flaw was found in Keycloak. This issue may allow an attacker to steal authorization codes or tokens from clients using a wildcard in the JARM response mode \"form_post.jwt\" which could be used to bypass the security patch implemented to address CVE-2023-6134.", "A flaw was found in Keycloak. This issue may allow an attacker to steal authorization codes or tokens from clients using a wildcard in the JARM response mode \"form_post.jwt\" which could be used to bypass the security patch implemented to address CVE-2023-6134."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2023-6927", "public_date": "2023-12-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-6927\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-6927"], "statement": "Red Hat rates this as a moderate, following the same case for CVE-2023-6134, but with another response mode with JSON Web Token.", "threat_severity": "Moderate", "upstream_fix": "keycloak 23.0.4"}