CVE-2011-4079

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"descriptions": [{"lang": "en", "value": "Off-by-one error in the UTF8StringNormalize function in OpenLDAP 2.4.26 and earlier allows remote attackers to cause a denial of service (slapd crash) via a zero-length string that triggers a heap-based buffer overflow, as demonstrated using an empty postalAddressAttribute value in an LDIF entry."}, {"lang": "es", "value": "Error por un paso en la funci\u00f3n UTF8StringNormalize en OpenLDAP 2.4.26 y versiones anteriores permite a atacantes remotos provocar una denegaci\u00f3n de servicio (ca\u00edda de slapd) a trav\u00e9s de una cadena de longitud cero que desencadena un desbordamiento de b\u00fafer basado en memoria din\u00e1mica, como se demuestra utilizando un valor vac\u00edo en el valor postalAddressAttribute en una entrada LDIF."}], "id": "CVE-2011-4079", "lastModified": "2026-06-16T23:34:23.250", "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": "2011-10-27T20:55:01.823", "references": [{"source": "secalert@redhat.com", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/46599"}, {"source": "secalert@redhat.com", "url": "http://security.gentoo.org/glsa/glsa-201406-36.xml"}, {"source": "secalert@redhat.com", "url": "http://www.openldap.org/devel/gitweb.cgi?p=openldap.git%3Ba=commitdiff%3Bh=507238713b71208ec4f262f312cb495a302df9e9"}, {"source": "secalert@redhat.com", "url": "http://www.openldap.org/its/index.cgi/Software%20Bugs?id=7059%3Bselectid=7059"}, {"source": "secalert@redhat.com", "url": "http://www.openwall.com/lists/oss-security/2011/10/26/5"}, {"source": "secalert@redhat.com", "url": "http://www.openwall.com/lists/oss-security/2011/10/26/9"}, {"source": "secalert@redhat.com", "url": "http://www.securityfocus.com/bid/50384"}, {"source": "secalert@redhat.com", "url": "http://www.ubuntu.com/usn/USN-1266-1"}, {"source": "secalert@redhat.com", "tags": ["Patch"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=749324"}, {"source": "secalert@redhat.com", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/70991"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/46599"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://security.gentoo.org/glsa/glsa-201406-36.xml"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openldap.org/devel/gitweb.cgi?p=openldap.git%3Ba=commitdiff%3Bh=507238713b71208ec4f262f312cb495a302df9e9"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openldap.org/its/index.cgi/Software%20Bugs?id=7059%3Bselectid=7059"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2011/10/26/5"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2011/10/26/9"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/bid/50384"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.ubuntu.com/usn/USN-1266-1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=749324"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/70991"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-189"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "openldap: one-byte buffer overflow in slapd", "id": "749324", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=749324"}, "csaw": false, "cvss": {"cvss_base_score": "3.5", "cvss_scoring_vector": "AV:N/AC:M/Au:S/C:N/I:N/A:P", "status": "draft"}, "details": ["Off-by-one error in the UTF8StringNormalize function in OpenLDAP 2.4.26 and earlier allows remote attackers to cause a denial of service (slapd crash) via a zero-length string that triggers a heap-based buffer overflow, as demonstrated using an empty postalAddressAttribute value in an LDIF entry."], "name": "CVE-2011-4079", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:4", "fix_state": "Not affected", "package_name": "openldap", "product_name": "Red Hat Enterprise Linux 4"}, {"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "openldap", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "openldap", "product_name": "Red Hat Enterprise Linux 6"}], "public_date": "2011-10-06T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2011-4079\nhttps://nvd.nist.gov/vuln/detail/CVE-2011-4079"], "statement": "The Red Hat Security Response Team does not consider this to be a security issue. For additional information, refer to: https://bugzilla.redhat.com/show_bug.cgi?id=749324#c1."}

{}