{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-36841", "assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "state": "PUBLISHED", "assignerShortName": "juniper", "dateReserved": "2023-06-27T16:17:25.276Z", "datePublished": "2023-10-12T22:58:14.922Z", "dateUpdated": "2024-09-18T18:01:47.921Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "platforms": ["MX Series"], "product": "Junos OS", "vendor": "Juniper Networks", "versions": [{"lessThan": "20.4R3-S7", "status": "affected", "version": "0", "versionType": "semver"}, {"lessThan": "21.1*", "status": "affected", "version": "21.1R1", "versionType": "semver"}, {"lessThan": "21.2R3-S6", "status": "affected", "version": "21.2", "versionType": "semver"}, {"lessThan": "21.3R3-S5", "status": "affected", "version": "21.3", "versionType": "semver"}, {"lessThan": "21.4R3-S3", "status": "affected", "version": "21.4", "versionType": "semver"}, {"lessThan": "22.1R3-S4", "status": "affected", "version": "22.1", "versionType": "semver"}, {"lessThan": "22.2R3", "status": "affected", "version": "22.2", "versionType": "semver"}, {"lessThan": "22.3R2-S2, 22.3R3", "status": "affected", "version": "22.3", "versionType": "semver"}, {"lessThan": "22.4R2", "status": "affected", "version": "22.4", "versionType": "semver"}]}], "configurations": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>PPPoE can be configured with the following commands:</p> <tt>[ edit interfaces interface-name ]<br></tt><tt> [ encapsulation ppp-over-ether; ]</tt><p>tcp-mss can be enabled with the following command:</p> <tt>[ tcp-mss mss-value; ]</tt>"}], "value": "PPPoE can be configured with the following commands:\n\n [ edit interfaces interface-name ]\n [ encapsulation ppp-over-ether; ]tcp-mss can be enabled with the following command:\n\n [ tcp-mss mss-value; ]"}], "datePublic": "2023-10-11T16:00:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "\n\n<p>An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on MX Series allows a unauthenticated network-based attacker to cause an infinite loop, resulting in a Denial of Service (DoS).</p><p>An attacker who sends malformed TCP traffic via an interface configured with PPPoE, causes an infinite loop on the respective PFE. 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This results in consuming all resources and a manual restart is needed to recover.\n\nThis issue affects interfaces with PPPoE configured and tcp-mss enabled.\n\nThis issue affects Juniper Networks Junos OS\n\n\n\n * All versions prior to 20.4R3-S7;\n * 21.1 version 21.1R1 and later versions;\n * 21.2 versions prior to 21.2R3-S6;\n * 21.3 versions prior to 21.3R3-S5;\n * 21.4 versions prior to 21.4R3-S3;\n * 22.1 versions prior to 22.1R3-S4;\n * 22.2 versions prior to 22.2R3;\n * 22.3 versions prior to 22.3R2-S2;\n * 22.4 versions prior to 22.4R2;\n\n\n\n\n\n\n", "supportingMedia": [{"type": "text/html", "value": "\n\n<p>An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on MX Series allows a unauthenticated network-based attacker to cause an infinite loop, resulting in a Denial of Service (DoS).</p><p>An attacker who sends malformed TCP traffic via an interface configured with PPPoE, causes an infinite loop on the respective PFE. 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"3A064B6B-A99B-4D8D-A62D-B00C7870BC30", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "\nAn Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on MX Series allows a unauthenticated network-based attacker to cause an infinite loop, resulting in a Denial of Service (DoS).\n\nAn attacker who sends malformed TCP traffic via an interface configured with PPPoE, causes an infinite loop on the respective PFE. This results in consuming all resources and a manual restart is needed to recover.\n\nThis issue affects interfaces with PPPoE configured and tcp-mss enabled.\n\nThis issue affects Juniper Networks Junos OS\n\n\n\n * All versions prior to 20.4R3-S7;\n * 21.1 version 21.1R1 and later versions;\n * 21.2 versions prior to 21.2R3-S6;\n * 21.3 versions prior to 21.3R3-S5;\n * 21.4 versions prior to 21.4R3-S3;\n * 22.1 versions prior to 22.1R3-S4;\n * 22.2 versions prior to 22.2R3;\n * 22.3 versions prior to 22.3R2-S2;\n * 22.4 versions prior to 22.4R2;\n\n\n\n\n\n\n"}, {"lang": "es", "value": "Una verificaci\u00f3n inadecuada de la vulnerabilidad de condiciones inusuales o excepcionales en Packet Forwarding Engine (pfe) de Juniper Networks Junos OS en la serie MX permite que un atacante basado en red no autenticado provoque un bucle infinito, lo que resulta en una Denegaci\u00f3n de Servicio (DoS). Un atacante que env\u00eda tr\u00e1fico TCP con formato incorrecto a trav\u00e9s de una interfaz configurada con PPPoE provoca un bucle infinito en el PFE respectivo. Esto da como resultado el consumo de todos los recursos y es necesario un reinicio manual para recuperarse. Este problema afecta a las interfaces con PPPoE configurado y tcp-mss habilitado. Este problema afecta a Juniper Networks Junos OS * Todas las versiones anteriores a 20.4R3-S7; * 21.1 versi\u00f3n 21.1R1 y versiones posteriores; * Versiones 21.2 anteriores a 21.2R3-S6; * Versiones 21.3 anteriores a 21.3R3-S5; * Versiones 21.4 anteriores a 21.4R3-S3; * Versiones 22.1 anteriores a 22.1R3-S4; * Versiones 22.2 anteriores a 22.2R3; * Versiones 22.3 anteriores a 22.3R2-S2; * Versiones 22.4 anteriores a 22.4R2;"}], "id": "CVE-2023-36841", "lastModified": "2023-10-17T16:03:01.293", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "sirt@juniper.net", "type": "Secondary"}]}, "published": "2023-10-12T23:15:10.967", "references": [{"source": "sirt@juniper.net", "tags": ["Vendor Advisory"], "url": "https://supportportal.juniper.net/JSA73172"}], "sourceIdentifier": "sirt@juniper.net", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-400"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-400"}], "source": "sirt@juniper.net", "type": "Secondary"}]}

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