{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-36839", "assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "state": "PUBLISHED", "assignerShortName": "juniper", "dateReserved": "2023-06-27T16:17:25.276Z", "datePublished": "2023-10-12T22:56:24.897Z", "dateUpdated": "2024-09-18T18:03:21.702Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Junos OS", "vendor": "Juniper Networks", "versions": [{"lessThan": "20.4R3-S8", "status": "affected", "version": "0", "versionType": "semver"}, {"lessThan": "21.1*", "status": "affected", "version": "21.1R1", "versionType": "semver"}, {"lessThan": "21.2R3-S5", "status": "affected", "version": "21.2", "versionType": "semver"}, {"lessThan": "21.3R3-S4", "status": "affected", "version": "21.3", "versionType": "semver"}, {"lessThan": "21.4R3-S3", "status": "affected", "version": "21.4", "versionType": "semver"}, {"lessThan": "22.1R3-S2", "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"}]}, {"defaultStatus": "unaffected", "product": "Junos OS Evolved", "vendor": "Juniper Networks", "versions": [{"lessThan": "20.4R3-S8-EVO", "status": "affected", "version": "0", "versionType": "semver"}, {"lessThan": "21.1*-EVO", "status": "affected", "version": "21.1R1-EVO", "versionType": "semver"}, {"lessThan": "21.2R3-S5-EVO", "status": "affected", "version": "21.2-EVO", "versionType": "semver"}, {"lessThan": "21.3R3-S4-EVO", "status": "affected", "version": "21.3-EVO", "versionType": "semver"}, {"lessThan": "21.4R3-S3-EVO", "status": "affected", "version": "21.4-EVO", "versionType": "semver"}, {"lessThan": "22.1R3-S2-EVO", "status": "affected", "version": "22.1-EVO", "versionType": "semver"}, {"lessThan": "22.2R3-EVO", "status": "affected", "version": "22.2-EVO", "versionType": "semver"}, {"lessThan": "22.3R2-S2-EVO, 22.3R3-EVO", "status": "affected", "version": "22.3-EVO", "versionType": "semver"}, {"lessThan": "22.4R1-S1-EVO, 22.4R2-EVO", "status": "affected", "version": "22.4-EVO", "versionType": "semver"}]}], "configurations": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>This vulnerability is only exploitable on interfaces with LLDP enabled.</p><tt>[ protocols lldp interface ]</tt>"}], "value": "This vulnerability is only exploitable on interfaces with LLDP enabled.\n\n[ protocols lldp interface ]"}], "datePublic": "2023-10-11T16:00:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "\n\n<p>An Improper Validation of Specified Quantity in Input vulnerability in the Layer-2 control protocols daemon (l2cpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker who sends specific LLDP packets to cause a Denial of Service(DoS).</p><p>This issue occurs when specific LLDP packets are received and telemetry polling is being done on the device. The impact of the l2cpd crash is reinitialization of STP protocols (RSTP, MSTP or VSTP), and MVRP and ERP. Also, if any services depend on LLDP state (like PoE or VoIP device recognition), then these will also be affected.</p><p>This issue affects:</p><p>Juniper Networks Junos OS</p><p></p><ul><li>All versions prior to 20.4R3-S8;</li><li>21.1 version 21.1R1 and later versions;</li><li>21.2 versions prior to 21.2R3-S5;</li><li>21.3 versions prior to 21.3R3-S4;</li><li>21.4 versions prior to 21.4R3-S3;</li><li>22.1 versions prior to 22.1R3-S2;</li><li>22.2 versions prior to 22.2R3;</li><li>22.3 versions prior to 22.3R2-S2;</li><li>22.4 versions prior to 22.4R2;</li></ul><p></p><p>Juniper Networks Junos OS Evolved</p><p></p><ul><li>All versions prior to 20.4R3-S8-EVO;</li><li>21.1 version 21.1R1-EVO and later versions;</li><li>21.2 versions prior to 21.2R3-S5-EVO;</li><li>21.3 versions prior to 21.3R3-S4-EVO;</li><li>21.4 versions prior to 21.4R3-S3-EVO;</li><li>22.1 versions prior to 22.1R3-S2-EVO;</li><li>22.2 versions prior to 22.2R3-EVO;</li><li>22.3 versions prior to 22.3R2-S2-EVO;</li><li>22.4 versions prior to 22.4R1-S1-EVO;</li></ul><p></p>\n\n"}], "value": "\nAn Improper Validation of Specified Quantity in Input vulnerability in the Layer-2 control protocols daemon (l2cpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker who sends specific LLDP packets to cause a Denial of Service(DoS).\n\nThis issue occurs when specific LLDP packets are received and telemetry polling is being done on the device. The impact of the l2cpd crash is reinitialization of STP protocols (RSTP, MSTP or VSTP), and MVRP and ERP. Also, if any services depend on LLDP state (like PoE or VoIP device recognition), then these will also be affected.\n\nThis issue affects:\n\nJuniper Networks Junos OS\n\n\n\n * All versions prior to 20.4R3-S8;\n * 21.1 version 21.1R1 and later versions;\n * 21.2 versions prior to 21.2R3-S5;\n * 21.3 versions prior to 21.3R3-S4;\n * 21.4 versions prior to 21.4R3-S3;\n * 22.1 versions prior to 22.1R3-S2;\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\nJuniper Networks Junos OS Evolved\n\n\n\n * All versions prior to 20.4R3-S8-EVO;\n * 21.1 version 21.1R1-EVO and later versions;\n * 21.2 versions prior to 21.2R3-S5-EVO;\n * 21.3 versions prior to 21.3R3-S4-EVO;\n * 21.4 versions prior to 21.4R3-S3-EVO;\n * 22.1 versions prior to 22.1R3-S2-EVO;\n * 22.2 versions prior to 22.2R3-EVO;\n * 22.3 versions prior to 22.3R2-S2-EVO;\n * 22.4 versions prior to 22.4R1-S1-EVO;\n\n\n\n\n\n\n"}], "exploits": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Juniper SIRT is not aware of any malicious exploitation of this vulnerability.</p>"}], "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability.\n\n"}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-1284", "description": " CWE-1284: Improper Validation of Specified Quantity in Input", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"description": "Denial of Service (DoS)", "lang": "en"}]}], "providerMetadata": {"orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "shortName": "juniper", "dateUpdated": "2023-10-12T22:56:24.897Z"}, "references": [{"tags": ["vendor-advisory"], "url": "https://supportportal.juniper.net/JSA73171"}], "solutions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>The following software releases have been updated to resolve this specific issue: </p><p>Junos OS: 20.4R3-S8, 21.2R3-S5, 21.3R3-S4, 21.4R3-S3, 22.1R3-S2, 22.2R3, 22.3R2-S2, 22.3R3, 22.4R2, 23.2R1, and all subsequent releases.</p><p>Junos OS Evolved: 20.4R3-S8-EVO, 21.2R3-S5-EVO, 21.3R3-S4-EVO, 21.4R3-S3-EVO, 22.1R3-S2-EVO, 22.2R3-EVO, 22.3R2-S2-EVO, 22.3R3-EVO, 22.4R1-S1-EVO, 22.4R2-EVO, 23.1R1-EVO, 23.1R2-EVO, 23.2R1-EVO</p>"}], "value": "The following software releases have been updated to resolve this specific issue: \n\nJunos OS: 20.4R3-S8, 21.2R3-S5, 21.3R3-S4, 21.4R3-S3, 22.1R3-S2, 22.2R3, 22.3R2-S2, 22.3R3, 22.4R2, 23.2R1, and all subsequent releases.\n\nJunos OS Evolved: 20.4R3-S8-EVO, 21.2R3-S5-EVO, 21.3R3-S4-EVO, 21.4R3-S3-EVO, 22.1R3-S2-EVO, 22.2R3-EVO, 22.3R2-S2-EVO, 22.3R3-EVO, 22.4R1-S1-EVO, 22.4R2-EVO, 23.1R1-EVO, 23.1R2-EVO, 23.2R1-EVO\n\n"}], "source": {"advisory": "JSA73171", "defect": ["1712287"], "discovery": "USER"}, "timeline": [{"lang": "en", "time": "2023-10-11T16:00:00.000Z", "value": "Initial Publication"}], "title": "Junos OS and Junos OS Evolved: An l2cpd crash will occur when specific LLDP packets are received", "workarounds": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>If LLDP and its services are not required, customers can disable LLDP. Disabling telemetry polling also mitigates the issue.</p><p>There are no other known workarounds for this issue.</p>"}], "value": "If LLDP and its services are not required, customers can disable LLDP. 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22.3R2-S2, 22.3R3, 22.4R2, 23.2R1, and all subsequent releases.\n\nJunos OS Evolved: 20.4R3-S8-EVO, 21.2R3-S5-EVO, 21.3R3-S4-EVO, 21.4R3-S3-EVO, 22.1R3-S2-EVO, 22.2R3-EVO, 22.3R2-S2-EVO, 22.3R3-EVO, 22.4R1-S1-EVO, 22.4R2-EVO, 23.1R1-EVO, 23.1R2-EVO, 23.2R1-EVO\n\n", "supportingMedia": [{"type": "text/html", "value": "<p>The following software releases have been updated to resolve this specific issue: </p><p>Junos OS: 20.4R3-S8, 21.2R3-S5, 21.3R3-S4, 21.4R3-S3, 22.1R3-S2, 22.2R3, 22.3R2-S2, 22.3R3, 22.4R2, 23.2R1, and all subsequent releases.</p><p>Junos OS Evolved: 20.4R3-S8-EVO, 21.2R3-S5-EVO, 21.3R3-S4-EVO, 21.4R3-S3-EVO, 22.1R3-S2-EVO, 22.2R3-EVO, 22.3R2-S2-EVO, 22.3R3-EVO, 22.4R1-S1-EVO, 22.4R2-EVO, 23.1R1-EVO, 23.1R2-EVO, 23.2R1-EVO</p>", "base64": false}]}], "datePublic": "2023-10-11T16:00:00.000Z", "references": [{"url": "https://supportportal.juniper.net/JSA73171", "tags": ["vendor-advisory"]}], "workarounds": [{"lang": "en", "value": "If LLDP and its services are not required, customers can disable LLDP. Disabling telemetry polling also mitigates the issue.\n\nThere are no other known workarounds for this issue.\n\n", "supportingMedia": [{"type": "text/html", "value": "<p>If LLDP and its services are not required, customers can disable LLDP. Disabling telemetry polling also mitigates the issue.</p><p>There are no other known workarounds for this issue.</p>", "base64": false}]}], "x_generator": {"engine": "Vulnogram 0.1.0-av217"}, "descriptions": [{"lang": "en", "value": "\nAn Improper Validation of Specified Quantity in Input vulnerability in the Layer-2 control protocols daemon (l2cpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker who sends specific LLDP packets to cause a Denial of Service(DoS).\n\nThis issue occurs when specific LLDP packets are received and telemetry polling is being done on the device. The impact of the l2cpd crash is reinitialization of STP protocols (RSTP, MSTP or VSTP), and MVRP and ERP. Also, if any services depend on LLDP state (like PoE or VoIP device recognition), then these will also be affected.\n\nThis issue affects:\n\nJuniper Networks Junos OS\n\n\n\n * All versions prior to 20.4R3-S8;\n * 21.1 version 21.1R1 and later versions;\n * 21.2 versions prior to 21.2R3-S5;\n * 21.3 versions prior to 21.3R3-S4;\n * 21.4 versions prior to 21.4R3-S3;\n * 22.1 versions prior to 22.1R3-S2;\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\nJuniper Networks Junos OS Evolved\n\n\n\n * All versions prior to 20.4R3-S8-EVO;\n * 21.1 version 21.1R1-EVO and later versions;\n * 21.2 versions prior to 21.2R3-S5-EVO;\n * 21.3 versions prior to 21.3R3-S4-EVO;\n * 21.4 versions prior to 21.4R3-S3-EVO;\n * 22.1 versions prior to 22.1R3-S2-EVO;\n * 22.2 versions prior to 22.2R3-EVO;\n * 22.3 versions prior to 22.3R2-S2-EVO;\n * 22.4 versions prior to 22.4R1-S1-EVO;\n\n\n\n\n\n\n", "supportingMedia": [{"type": "text/html", "value": "\n\n<p>An Improper Validation of Specified Quantity in Input vulnerability in the Layer-2 control protocols daemon (l2cpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker who sends specific LLDP packets to cause a Denial of Service(DoS).</p><p>This issue occurs when specific LLDP packets are received and telemetry polling is being done on the device. The impact of the l2cpd crash is reinitialization of STP protocols (RSTP, MSTP or VSTP), and MVRP and ERP. Also, if any services depend on LLDP state (like PoE or VoIP device recognition), then these will also be affected.</p><p>This issue affects:</p><p>Juniper Networks Junos OS</p><p></p><ul><li>All versions prior to 20.4R3-S8;</li><li>21.1 version 21.1R1 and later versions;</li><li>21.2 versions prior to 21.2R3-S5;</li><li>21.3 versions prior to 21.3R3-S4;</li><li>21.4 versions prior to 21.4R3-S3;</li><li>22.1 versions prior to 22.1R3-S2;</li><li>22.2 versions prior to 22.2R3;</li><li>22.3 versions prior to 22.3R2-S2;</li><li>22.4 versions prior to 22.4R2;</li></ul><p></p><p>Juniper Networks Junos OS Evolved</p><p></p><ul><li>All versions prior to 20.4R3-S8-EVO;</li><li>21.1 version 21.1R1-EVO and later versions;</li><li>21.2 versions prior to 21.2R3-S5-EVO;</li><li>21.3 versions prior to 21.3R3-S4-EVO;</li><li>21.4 versions prior to 21.4R3-S3-EVO;</li><li>22.1 versions prior to 22.1R3-S2-EVO;</li><li>22.2 versions prior to 22.2R3-EVO;</li><li>22.3 versions prior to 22.3R2-S2-EVO;</li><li>22.4 versions prior to 22.4R1-S1-EVO;</li></ul><p></p>\n\n", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-1284", "description": " CWE-1284: Improper Validation of Specified Quantity in Input"}]}, {"descriptions": [{"lang": "en", "description": "Denial of Service (DoS)"}]}], "configurations": [{"lang": "en", "value": "This vulnerability is only exploitable on interfaces with LLDP enabled.\n\n[ protocols lldp interface ]", "supportingMedia": [{"type": "text/html", "value": "<p>This vulnerability is only exploitable on interfaces with LLDP enabled.</p><tt>[ protocols lldp interface ]</tt>", "base64": false}]}], "providerMetadata": {"orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "shortName": "juniper", "dateUpdated": "2023-10-12T22:56:24.897Z"}}}, "cveMetadata": {"cveId": "CVE-2023-36839", "state": "PUBLISHED", "dateUpdated": "2024-09-18T18:03:21.702Z", "dateReserved": "2023-06-27T16:17:25.276Z", "assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "datePublished": "2023-10-12T22:56:24.897Z", "assignerShortName": "juniper"}, "dataVersion": "5.1"}

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The impact of the l2cpd crash is reinitialization of STP protocols (RSTP, MSTP or VSTP), and MVRP and ERP. Also, if any services depend on LLDP state (like PoE or VoIP device recognition), then these will also be affected.\n\nThis issue affects:\n\nJuniper Networks Junos OS\n\n\n\n * All versions prior to 20.4R3-S8;\n * 21.1 version 21.1R1 and later versions;\n * 21.2 versions prior to 21.2R3-S5;\n * 21.3 versions prior to 21.3R3-S4;\n * 21.4 versions prior to 21.4R3-S3;\n * 22.1 versions prior to 22.1R3-S2;\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\nJuniper Networks Junos OS Evolved\n\n\n\n * All versions prior to 20.4R3-S8-EVO;\n * 21.1 version 21.1R1-EVO and later versions;\n * 21.2 versions prior to 21.2R3-S5-EVO;\n * 21.3 versions prior to 21.3R3-S4-EVO;\n * 21.4 versions prior to 21.4R3-S3-EVO;\n * 22.1 versions prior to 22.1R3-S2-EVO;\n * 22.2 versions prior to 22.2R3-EVO;\n * 22.3 versions prior to 22.3R2-S2-EVO;\n * 22.4 versions prior to 22.4R1-S1-EVO;\n\n\n\n\n\n\n"}, {"lang": "es", "value": "Una validaci\u00f3n inadecuada de la vulnerabilidad de cantidad especificada en la entrada en Layer-2 control protocols daemon (l2cpd) de Juniper Networks Junos OS y Junos OS Evolved permite que un atacante adyacente no autenticado que env\u00eda paquetes LLDP espec\u00edficos provoque una Denegaci\u00f3n de Servicio (DoS). Este problema ocurre cuando se reciben paquetes LLDP espec\u00edficos y se realiza un sondeo de telemetr\u00eda en el dispositivo. El impacto del fallo de l2cpd es la reinicializaci\u00f3n de los protocolos STP (RSTP, MSTP o VSTP) y MVRP y ERP. Adem\u00e1s, si alg\u00fan servicio depende del estado de LLDP (como PoE o reconocimiento de dispositivo VoIP), tambi\u00e9n se ver\u00e1 afectado. Este problema afecta a: Juniper Networks Junos OS * Todas las versiones anteriores a 20.4R3-S8; * 21.1 versi\u00f3n 21.1R1 y versiones posteriores; * Versiones 21.2 anteriores a 21.2R3-S5; * Versiones 21.3 anteriores a 21.3R3-S4; * Versiones 21.4 anteriores a 21.4R3-S3; * Versiones 22.1 anteriores a 22.1R3-S2; * Versiones 22.2 anteriores a 22.2R3; * Versiones 22.3 anteriores a 22.3R2-S2; * Versiones 22.4 anteriores a 22.4R2; Juniper Networks Junos OS Evolved * Todas las versiones anteriores a 20.4R3-S8-EVO; * 21.1 versi\u00f3n 21.1R1-EVO y versiones posteriores; * Versiones 21.2 anteriores a 21.2R3-S5-EVO; * Versiones 21.3 anteriores a 21.3R3-S4-EVO; * Versiones 21.4 anteriores a 21.4R3-S3-EVO; * Versiones 22.1 anteriores a 22.1R3-S2-EVO; * Versiones 22.2 anteriores a 22.2R3-EVO; * Versiones 22.3 anteriores a 22.3R2-S2-EVO; * Versiones 22.4 anteriores a 22.4R1-S1-EVO;"}], "id": "CVE-2023-36839", "lastModified": "2023-10-16T19:27:00.180", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "sirt@juniper.net", "type": "Secondary"}]}, "published": "2023-10-12T23:15:10.883", "references": [{"source": "sirt@juniper.net", "tags": ["Vendor Advisory"], "url": "https://supportportal.juniper.net/JSA73171"}], "sourceIdentifier": "sirt@juniper.net", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1284"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-1284"}], "source": "sirt@juniper.net", "type": "Secondary"}]}

{}