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"Use-after-free vulnerability in the cryptographic helper handler functionality in Openswan 2.3.0 through 2.6.36 allows remote authenticated users to cause a denial of service (pluto IKE daemon crash) via vectors related to the (1) quick_outI1_continue and (2) quick_outI1 functions."}, {"lang": "es", "value": "Una vulnerabilidad de uso de memoria previamente liberada en la funcionalidad del manejador auxiliar criptogr\u00e1fico en Openswan versi\u00f3n 2.3.0 hasta 2.6.36, permite a los usuarios autenticados remotos causar una denegaci\u00f3n de servicio (bloqueo del demonio pluto IKE) por medio de vectores relacionados con las funciones (1) quick_outI1_continue y (2) quick_outI1."}], "id": "CVE-2011-4073", "lastModified": "2026-04-29T01:13:23.040", "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": "2011-11-17T19:55:01.390", "references": [{"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/46678"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/46681"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/47342"}, {"source": "cve@mitre.org", "url": "http://www.debian.org/security/2011/dsa-2374"}, {"source": "cve@mitre.org", "url": "http://www.openswan.org/download/CVE-2011-4073/CVE-2011-4073.txt"}, {"source": "cve@mitre.org", "url": "http://www.redhat.com/support/errata/RHSA-2011-1422.html"}, {"source": "cve@mitre.org", "url": "http://www.securityfocus.com/bid/50440"}, {"source": "cve@mitre.org", "url": "http://www.securitytracker.com/id?1026268"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/46678"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/46681"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://secunia.com/advisories/47342"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.debian.org/security/2011/dsa-2374"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openswan.org/download/CVE-2011-4073/CVE-2011-4073.txt"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.redhat.com/support/errata/RHSA-2011-1422.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/bid/50440"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securitytracker.com/id?1026268"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-399"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank Openswan project for reporting this issue.", "affected_release": [{"advisory": "RHSA-2011:1422", "cpe": "cpe:/o:redhat:enterprise_linux:5", "package": "openswan-0:2.6.21-5.el5_7.6", "product_name": "Red Hat Enterprise Linux 5", "release_date": "2011-11-02T00:00:00Z"}, {"advisory": "RHSA-2011:1422", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "openswan-0:2.6.32-4.el6_1.4", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2011-11-02T00:00:00Z"}], "bugzilla": {"description": "openswan: use-after-free vulnerability leads to DoS", "id": "748961", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=748961"}, "csaw": false, "cvss": {"cvss_base_score": "4.0", "cvss_scoring_vector": "AV:N/AC:L/Au:S/C:N/I:N/A:P", "status": "verified"}, "cwe": "CWE-416", "details": ["Use-after-free vulnerability in the cryptographic helper handler functionality in Openswan 2.3.0 through 2.6.36 allows remote authenticated users to cause a denial of service (pluto IKE daemon crash) via vectors related to the (1) quick_outI1_continue and (2) quick_outI1 functions."], "name": "CVE-2011-4073", "public_date": "2011-10-28T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2011-4073\nhttps://nvd.nist.gov/vuln/detail/CVE-2011-4073\nhttp://openswan.org/download/CVE-2011-4073/CVE-2011-4073.txt"], "threat_severity": "Moderate"}

{}