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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:libreswan:libreswan:3.14:*:*:*:*:*:*:*", "matchCriteriaId": "1172BCE5-FFD0-4D83-AEA4-84F469AB5005", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The pluto IKE daemon in libreswan before 3.15 and Openswan before 2.6.45, when built with NSS, allows remote attackers to cause a denial of service (assertion failure and daemon restart) via a zero DH g^x value in a KE payload in a IKE packet."}, {"lang": "es", "value": "El demonio pluto IKE en libreswan en versiones anteriores a 3.15 y Openswan en versiones anteriores a 2.6.45, cuando ha sido construido con NSS, permite a atacantes remotos causar una denegaci\u00f3n de servicio (fallo de aserci\u00f3n y reinicio de demonio) a trav\u00e9s de un valor zero DH g^x en un payload KE en un paquete IKE."}], "id": "CVE-2015-3240", "lastModified": "2025-04-12T10:46:40.837", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2015-11-09T16:59:01.557", "references": [{"source": "secalert@redhat.com", "url": "http://rhn.redhat.com/errata/RHSA-2015-1979.html"}, {"source": "secalert@redhat.com", "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html"}, {"source": "secalert@redhat.com", "url": "http://www.securityfocus.com/bid/77536"}, {"source": "secalert@redhat.com", "url": "http://www.securitytracker.com/id/1033418"}, {"source": "secalert@redhat.com", "tags": ["Vendor Advisory"], "url": "https://libreswan.org/security/CVE-2015-3240/CVE-2015-3240.txt"}, {"source": "secalert@redhat.com", "tags": ["Vendor Advisory"], "url": "https://lists.openswan.org/pipermail/users/2015-August/023401.html"}, {"source": "secalert@redhat.com", "url": "https://security.gentoo.org/glsa/201603-13"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://rhn.redhat.com/errata/RHSA-2015-1979.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/bid/77536"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securitytracker.com/id/1033418"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://libreswan.org/security/CVE-2015-3240/CVE-2015-3240.txt"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://lists.openswan.org/pipermail/users/2015-August/023401.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://security.gentoo.org/glsa/201603-13"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-189"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "This issue was discovered by Paul Wouters (Red Hat).", "affected_release": [{"advisory": "RHSA-2015:1979", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "libreswan-0:3.15-5.el7_1", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2015-11-04T00:00:00Z"}], "bugzilla": {"description": "openswan: denial of service via IKE daemon restart when receiving a bad DH gx value", "id": "1232320", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1232320"}, "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"}, "cwe": "CWE-617", "details": ["The pluto IKE daemon in libreswan before 3.15 and Openswan before 2.6.45, when built with NSS, allows remote attackers to cause a denial of service (assertion failure and daemon restart) via a zero DH g^x value in a KE payload in a IKE packet.", "A flaw was discovered in the way Libreswan's IKE daemon processed IKE KE payloads. A remote attacker could send specially crafted IKE payload with a KE payload of g^x=0 that, when processed, would lead to a denial of service (daemon crash)."], "name": "CVE-2015-3240", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Will not fix", "package_name": "openswan", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Will not fix", "package_name": "openswan", "product_name": "Red Hat Enterprise Linux 6"}], "public_date": "2015-08-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2015-3240\nhttps://nvd.nist.gov/vuln/detail/CVE-2015-3240\nhttps://libreswan.org/security/CVE-2015-3240/"], "threat_severity": "Moderate"}

{}