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{"acknowledgement": "Red Hat would like to thank MIT Kerberos project for reporting this issue. Upstream acknowledges Andrej Ota as the original reporter.", "affected_release": [{"advisory": "RHSA-2011:1379", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "krb5-0:1.9-9.el6_1.2", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2011-10-18T00:00:00Z"}], "bugzilla": {"description": "krb5: KDC denial of service vulnerabilities (MITKRB5-SA-2011-006)", "id": "737711", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=737711"}, "csaw": false, "cvss": {"cvss_base_score": "5.0", "cvss_scoring_vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "status": "verified"}, "details": ["The kdb_ldap plugin in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.9 through 1.9.1, when the LDAP back end is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a kinit operation with incorrect string case for the realm, related to the is_principal_in_realm, krb5_set_error_message, krb5_ldap_get_principal, and process_as_req functions."], "name": "CVE-2011-1527", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:3", "fix_state": "Not affected", "package_name": "krb5", "product_name": "Red Hat Enterprise Linux 3"}, {"cpe": "cpe:/o:redhat:enterprise_linux:4", "fix_state": "Not affected", "package_name": "krb5", "product_name": "Red Hat Enterprise Linux 4"}, {"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "krb5", "product_name": "Red Hat Enterprise Linux 5"}], "public_date": "2011-10-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2011-1527\nhttps://nvd.nist.gov/vuln/detail/CVE-2011-1527"], "threat_severity": "Moderate"}