CVE-2015-2697

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service (out-of-bounds read and KDC crash) via an initial '\\0' character in a long realm field within a TGS request."}, {"lang": "es", "value": "La funci\u00f3n build_principal_va en lib/krb5/krb/bld_princ.c en MIT Kerberos 5 (tambi\u00e9n conocido como krb5) en versiones anteriores a 1.14 permite a usuarios remotos autenticados provocar una denegaci\u00f3n de servicio (lectura fuera de rango y ca\u00edda de KDC) a trav\u00e9s de un car\u00e1cter inicial '\\0' en un campo realm largo dentro de una solicitud TGS."}], "id": "CVE-2015-2697", "lastModified": "2026-06-17T00:24:34.433", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 4.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2015-11-09T03:59:03.343", "references": [{"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "http://krbdev.mit.edu/rt/Ticket/Display.html?id=8252"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00006.html"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00014.html"}, {"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00022.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://www.debian.org/security/2015/dsa-3395"}, {"source": "cve@mitre.org", "tags": 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{"bugzilla": {"description": "krb5: build_principal() memory flaw", "id": "1275863", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1275863"}, "csaw": false, "cvss": {"cvss_base_score": "4.0", "cvss_scoring_vector": "AV:N/AC:L/Au:S/C:N/I:N/A:P", "status": "draft"}, "cwe": "CWE-125", "details": ["The build_principal_va function in lib/krb5/krb/bld_princ.c in MIT Kerberos 5 (aka krb5) before 1.14 allows remote authenticated users to cause a denial of service (out-of-bounds read and KDC crash) via an initial '\\0' character in a long realm field within a TGS request.", "An out-of-bounds flaw was discovered in MIT Kerberos; the build_principal_va() function did not properly duplicate the realm. An authenticated remote attacker could possibly exploit this flaw by sending a TGS request containing a specially crafted realm field and crashing the KDC (denial of service)."], "name": "CVE-2015-2697", "package_state": [{"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"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Will not fix", "package_name": "krb5", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Will not fix", "package_name": "krb5", "product_name": "Red Hat Enterprise Linux 7"}], "public_date": "2015-09-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2015-2697\nhttps://nvd.nist.gov/vuln/detail/CVE-2015-2697"], "threat_severity": "Moderate"}

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