{"containers": {"cna": {"affected": [{"platforms": ["MX Series, EX9200 Series"], "product": "Junos OS", "vendor": "Juniper Networks", "versions": [{"lessThan": "17.3R3-S10", "status": "affected", "version": "17.3", "versionType": "custom"}, {"lessThan": "17.4R3-S3", "status": "affected", "version": "17.4", "versionType": "custom"}, {"lessThan": "18.2R3-S7", "status": "affected", "version": "18.2", "versionType": "custom"}, {"lessThan": "18.3R3-S4", "status": "affected", "version": "18.3", "versionType": "custom"}, {"lessThan": "18.4R3-S6", "status": "affected", "version": "18.4", "versionType": "custom"}, {"lessThan": "19.2R3-S2", "status": "affected", "version": "19.2", "versionType": "custom"}, {"lessThan": "19.3R3-S1", "status": "affected", "version": "19.3", "versionType": "custom"}, {"lessThan": "19.4R2-S2, 19.4R3", "status": "affected", "version": "19.4", "versionType": "custom"}, {"lessThan": "20.2R1-S3, 20.2R2", "status": "affected", "version": "20.2", "versionType": "custom"}, {"lessThan": "20.3R1-S1,, 20.3R2", "status": "affected", "version": "20.3", "versionType": "custom"}]}, {"product": "Junos OS", "vendor": "Juniper Networks", "versions": [{"status": "unaffected", "version": "18.1"}, {"status": "unaffected", "version": "19.1"}, {"lessThan": "17.3R3-S8", "status": "unaffected", "version": "17.3", "versionType": "custom"}, {"lessThan": "17.4R3-S2", "status": "unaffected", "version": "17.4", "versionType": "custom"}, {"lessThan": "18.2R3-S4", "status": "unaffected", "version": "18.2", "versionType": "custom"}, {"lessThan": "18.3R3-S2", "status": "unaffected", "version": "18.3", "versionType": "custom"}, {"lessThan": "18.4R3-S1", "status": "unaffected", "version": "18.4", "versionType": "custom"}, {"lessThan": "19.2R2", "status": "unaffected", "version": "19.2", "versionType": "custom"}, {"lessThan": "19.3R3", "status": "unaffected", "version": "19.3", "versionType": "custom"}, {"lessThan": "19.4R2", "status": "unaffected", "version": "19.4", "versionType": "custom"}]}], "configurations": [{"lang": "en", "value": "A sample configuration of an IRB interface configured for VPLS is shown below:\n\n routing-instances {\n instance1 {\n instance-type vpls;\n routing-interface irb.1234;\n }"}], "datePublic": "2021-04-14T00:00:00", "descriptions": [{"lang": "en", "value": "On Juniper Networks MX Series and EX9200 Series platforms with Trio-based MPCs (Modular Port Concentrators) where Integrated Routing and Bridging (IRB) interfaces are configured and mapped to a VPLS instance or a Bridge-Domain, certain Layer 2 network events at Customer Edge (CE) devices may cause memory leaks in the MPC of Provider Edge (PE) devices which can cause an out of memory condition and MPC restart. When this issue occurs, there will be temporary traffic interruption until the MPC is restored. An administrator can use the following CLI command to monitor the status of memory usage level of the MPC: user@device> show system resource-monitor fpc FPC Resource Usage Summary Free Heap Mem Watermark : 20 % Free NH Mem Watermark : 20 % Free Filter Mem Watermark : 20 % * - Watermark reached Slot # % Heap Free RTT Average RTT 1 87 PFE # % ENCAP mem Free % NH mem Free % FW mem Free 0 NA 88 99 1 NA 89 99 When the issue is occurring, the value of \u201c% NH mem Free\u201d will go down until the MPC restarts. This issue affects MX Series and EX9200 Series with Trio-based PFEs (Packet Forwarding Engines), including MX-MPC1-3D, MX-MPC1E-3D, MX-MPC2-3D, MX-MPC2E-3D, MPC-3D-16XGE, and CHAS-MXxx Series MPCs. No other products or platforms are affected by this issue. This issue affects Juniper Networks Junos OS on MX Series, EX9200 Series: 17.3 versions prior to 17.3R3-S10; 17.4 versions prior to 17.4R3-S3; 18.2 versions prior to 18.2R3-S7; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R3-S6; 19.2 versions prior to 19.2R3-S2; 19.3 versions prior to 19.3R3-S1; 19.4 versions prior to 19.4R2-S2, 19.4R3; 20.2 versions prior to 20.2R1-S3, 20.2R2; 20.3 versions prior to 20.3R1-S1,, 20.3R2. This issue does not affect Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S8; 17.4 versions prior to 17.4R3-S2; 18.1; 18.2 versions prior to 18.2R3-S4; 18.3 versions prior to 18.3R3-S2; 18.4 versions prior to 18.4R3-S1; 19.1; 19.2 versions prior to 19.2R2; 19.3 versions prior to 19.3R3; 19.4 versions prior to 19.4R2."}], "exploits": [{"lang": "en", "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."}], "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"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-400", "description": "CWE-400 Uncontrolled Resource Consumption", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-04-22T19:37:17", "orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "shortName": "juniper"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://kb.juniper.net/JSA11148"}], "solutions": [{"lang": "en", "value": "The following software releases have been updated to resolve this specific issue: Junos OS 17.3R3-S10, 17.4R3-S3, 18.2R3-S7, 18.3R3-S4, 18.4R3-S6, 19.2R3-S2, 19.3R3-S1, 19.4R2-S2, 19.4R3, 20.1R2, 20.2R1-S3, 20.2R2, 20.2R3, 20.3R1-S1, 20.3R2, 20.4R1, and all subsequent releases."}], "source": {"advisory": "JSA11148", "defect": ["1528641"], "discovery": "USER"}, "title": "Junos OS: MX Series, EX9200 Series: Trio-based MPCs memory leak in VPLS with integrated routing and bridging (IRB) interface", "workarounds": [{"lang": "en", "value": "There are no viable workarounds for this issue."}], "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "sirt@juniper.net", "DATE_PUBLIC": "2021-04-14T16:00:00.000Z", "ID": "CVE-2021-0257", "STATE": "PUBLIC", "TITLE": "Junos OS: MX Series, EX9200 Series: Trio-based MPCs memory leak in VPLS with integrated routing and bridging (IRB) interface"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Junos OS", "version": {"version_data": [{"platform": "MX Series, EX9200 Series", "version_affected": "<", "version_name": "17.3", "version_value": "17.3R3-S10"}, {"platform": "MX Series, EX9200 Series", "version_affected": "<", "version_name": "17.4", "version_value": "17.4R3-S3"}, {"platform": "MX Series, EX9200 Series", "version_affected": "<", "version_name": "18.2", "version_value": "18.2R3-S7"}, {"platform": "MX Series, EX9200 Series", "version_affected": "<", "version_name": "18.3", "version_value": "18.3R3-S4"}, {"platform": "MX Series, EX9200 Series", "version_affected": "<", "version_name": "18.4", "version_value": "18.4R3-S6"}, {"platform": "MX Series, EX9200 Series", "version_affected": "<", "version_name": "19.2", "version_value": "19.2R3-S2"}, {"platform": "MX Series, EX9200 Series", "version_affected": "<", "version_name": "19.3", "version_value": "19.3R3-S1"}, {"platform": "MX Series, EX9200 Series", "version_affected": "<", "version_name": "19.4", "version_value": "19.4R2-S2, 19.4R3"}, {"platform": "MX Series, EX9200 Series", "version_affected": "<", "version_name": "20.2", "version_value": "20.2R1-S3, 20.2R2"}, {"platform": "MX Series, EX9200 Series", "version_affected": "<", "version_name": "20.3", "version_value": "20.3R1-S1,, 20.3R2"}, {"version_affected": "!<", "version_name": "17.3", "version_value": "17.3R3-S8"}, {"version_affected": "!<", "version_name": "17.4", "version_value": "17.4R3-S2"}, {"version_affected": "!", "version_value": "18.1"}, {"version_affected": "!<", "version_name": "18.2", "version_value": "18.2R3-S4"}, {"version_affected": "!<", "version_name": "18.3", "version_value": "18.3R3-S2"}, {"version_affected": "!<", "version_name": "18.4", "version_value": "18.4R3-S1"}, {"version_affected": "!", "version_name": "19.1", "version_value": "19.1"}, {"version_affected": "!<", "version_name": "19.2", "version_value": "19.2R2"}, {"version_affected": "!<", "version_name": "19.3", "version_value": "19.3R3"}, {"version_affected": "!<", "version_name": "19.4", "version_value": "19.4R2"}]}}]}, "vendor_name": "Juniper Networks"}]}}, "configuration": [{"lang": "en", "value": "A sample configuration of an IRB interface configured for VPLS is shown below:\n\n routing-instances {\n instance1 {\n instance-type vpls;\n routing-interface irb.1234;\n }"}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "On Juniper Networks MX Series and EX9200 Series platforms with Trio-based MPCs (Modular Port Concentrators) where Integrated Routing and Bridging (IRB) interfaces are configured and mapped to a VPLS instance or a Bridge-Domain, certain Layer 2 network events at Customer Edge (CE) devices may cause memory leaks in the MPC of Provider Edge (PE) devices which can cause an out of memory condition and MPC restart. When this issue occurs, there will be temporary traffic interruption until the MPC is restored. An administrator can use the following CLI command to monitor the status of memory usage level of the MPC: user@device> show system resource-monitor fpc FPC Resource Usage Summary Free Heap Mem Watermark : 20 % Free NH Mem Watermark : 20 % Free Filter Mem Watermark : 20 % * - Watermark reached Slot # % Heap Free RTT Average RTT 1 87 PFE # % ENCAP mem Free % NH mem Free % FW mem Free 0 NA 88 99 1 NA 89 99 When the issue is occurring, the value of \u201c% NH mem Free\u201d will go down until the MPC restarts. This issue affects MX Series and EX9200 Series with Trio-based PFEs (Packet Forwarding Engines), including MX-MPC1-3D, MX-MPC1E-3D, MX-MPC2-3D, MX-MPC2E-3D, MPC-3D-16XGE, and CHAS-MXxx Series MPCs. No other products or platforms are affected by this issue. This issue affects Juniper Networks Junos OS on MX Series, EX9200 Series: 17.3 versions prior to 17.3R3-S10; 17.4 versions prior to 17.4R3-S3; 18.2 versions prior to 18.2R3-S7; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R3-S6; 19.2 versions prior to 19.2R3-S2; 19.3 versions prior to 19.3R3-S1; 19.4 versions prior to 19.4R2-S2, 19.4R3; 20.2 versions prior to 20.2R1-S3, 20.2R2; 20.3 versions prior to 20.3R1-S1,, 20.3R2. This issue does not affect Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S8; 17.4 versions prior to 17.4R3-S2; 18.1; 18.2 versions prior to 18.2R3-S4; 18.3 versions prior to 18.3R3-S2; 18.4 versions prior to 18.4R3-S1; 19.1; 19.2 versions prior to 19.2R2; 19.3 versions prior to 19.3R3; 19.4 versions prior to 19.4R2."}]}, "exploit": [{"lang": "en", "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."}], "generator": {"engine": "Vulnogram 0.0.9"}, "impact": {"cvss": {"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"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-400 Uncontrolled Resource Consumption"}]}]}, "references": {"reference_data": [{"name": "https://kb.juniper.net/JSA11148", "refsource": "MISC", "url": "https://kb.juniper.net/JSA11148"}]}, "solution": [{"lang": "en", "value": "The following software releases have been updated to resolve this specific issue: Junos OS 17.3R3-S10, 17.4R3-S3, 18.2R3-S7, 18.3R3-S4, 18.4R3-S6, 19.2R3-S2, 19.3R3-S1, 19.4R2-S2, 19.4R3, 20.1R2, 20.2R1-S3, 20.2R2, 20.2R3, 20.3R1-S1, 20.3R2, 20.4R1, and all subsequent releases."}], "source": {"advisory": "JSA11148", "defect": ["1528641"], "discovery": "USER"}, "work_around": [{"lang": "en", "value": "There are no viable workarounds for this issue."}]}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T15:32:10.531Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://kb.juniper.net/JSA11148"}]}]}, "cveMetadata": {"assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "assignerShortName": "juniper", "cveId": "CVE-2021-0257", "datePublished": "2021-04-22T19:37:17.394171Z", "dateReserved": "2020-10-27T00:00:00", "dateUpdated": "2024-09-17T01:20:53.966Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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When this issue occurs, there will be temporary traffic interruption until the MPC is restored. An administrator can use the following CLI command to monitor the status of memory usage level of the MPC: user@device> show system resource-monitor fpc FPC Resource Usage Summary Free Heap Mem Watermark : 20 % Free NH Mem Watermark : 20 % Free Filter Mem Watermark : 20 % * - Watermark reached Slot # % Heap Free RTT Average RTT 1 87 PFE # % ENCAP mem Free % NH mem Free % FW mem Free 0 NA 88 99 1 NA 89 99 When the issue is occurring, the value of \u201c% NH mem Free\u201d will go down until the MPC restarts. This issue affects MX Series and EX9200 Series with Trio-based PFEs (Packet Forwarding Engines), including MX-MPC1-3D, MX-MPC1E-3D, MX-MPC2-3D, MX-MPC2E-3D, MPC-3D-16XGE, and CHAS-MXxx Series MPCs. No other products or platforms are affected by this issue. This issue affects Juniper Networks Junos OS on MX Series, EX9200 Series: 17.3 versions prior to 17.3R3-S10; 17.4 versions prior to 17.4R3-S3; 18.2 versions prior to 18.2R3-S7; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R3-S6; 19.2 versions prior to 19.2R3-S2; 19.3 versions prior to 19.3R3-S1; 19.4 versions prior to 19.4R2-S2, 19.4R3; 20.2 versions prior to 20.2R1-S3, 20.2R2; 20.3 versions prior to 20.3R1-S1,, 20.3R2. This issue does not affect Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S8; 17.4 versions prior to 17.4R3-S2; 18.1; 18.2 versions prior to 18.2R3-S4; 18.3 versions prior to 18.3R3-S2; 18.4 versions prior to 18.4R3-S1; 19.1; 19.2 versions prior to 19.2R2; 19.3 versions prior to 19.3R3; 19.4 versions prior to 19.4R2."}, {"lang": "es", "value": "En las plataformas de la serie MX y EX9200 de Juniper Networks con MPC (Modular Port Concentrators) basados ??en Trio, donde las interfaces de Enrutamiento y Bridge-Domain (IRB) son configuradas y asignadas a una instancia de VPLS o un Bridge-Domain, determinados eventos de red de Capa 2 en dispositivos Customer Edge (CE) pueden causar p\u00e9rdidas de memoria en el MPC de los dispositivos Provider Edge (PE) que pueden causar una condici\u00f3n de memoria insuficiente y el reinicio del MPC.&#xa0;Cuando este problema ocurre, habr\u00e1 una interrupci\u00f3n temporal del tr\u00e1fico hasta el MPC se restaure.&#xa0;Un administrador puede usar el siguiente comando CLI para monitorear el estado del nivel de uso de memoria del MPC: user@device&gt; show system resource-monitor fpc FPC Resource Usage Summary Free Heap Mem Watermark : 20 % Free NH Mem Watermark : 20 % Free Filter Mem Watermark : 20 % * - Watermark reached Slot # % Heap Free RTT Average RTT 1 87 PFE # % ENCAP mem Free % NH mem Free % FW mem Free 0 NA 88 99 1 NA 89 99 When the issue is occurring, the value of \u201c% NH mem Free\u201d will go down until the MPC restarts. This issue affects MX Series and EX9200 Series with Trio-based PFEs (Packet Forwarding Engines), including MX-MPC1-3D, MX-MPC1E-3D, MX-MPC2-3D, MX-MPC2E-3D, MPC-3D-16XGE, and CHAS-MXxx Series MPCs.&#xa0;Ning\u00fan otro producto o plataforma est\u00e1 afectado por este problema.&#xa0;Este problema afecta a Junos de Juniper Networks OS en la serie MX, serie EX9200: versiones 17.3 anteriores a 17.3R3-S10;&#xa0;versiones 17.4 anteriores a 17.4R3-S3;&#xa0;versiones 18.2 anteriores a 18.2R3-S7;&#xa0;versiones 18.3 anteriores a 18.3R3-S4;&#xa0;versiones 18.4 anteriores a 18.4R3-S6;&#xa0;versiones 19.2 anteriores a 19.2R3-S2;&#xa0;versiones 19.3 anteriores a 19.3R3-S1;&#xa0;versiones 19.4 anteriores a 19.4R2-S2, 19.4R3;&#xa0;versiones 20.&#xa0;2 anteriores a 20.2R1-S3, 20.2R2;&#xa0;versiones 20.3 anteriores a 20.3R1-S1 ,, 20.3R2.&#xa0;Este problema no afecta al sistema operativo Junos de Juniper Networks: versiones 17.3 anteriores a 17.3R3-S8;&#xa0;versiones 17.4 anteriores a 17.4R3-S2;&#xa0;versiones 18,1;&#xa0;versiones 18.2 anteriores a 18.2R3-S4;&#xa0;versiones 18.3 anteriores a 18.3R3-S2;&#xa0;versiones 18.4 anteriores a 18.4R3-S1;&#xa0;versiones 19,1;&#xa0;versiones 19.2 anteriores a 19.2R2;&#xa0;versiones 19.3 anteriores a 19.3R3;&#xa0;versiones 19.4 anteriores a 19.4R2"}], "id": "CVE-2021-0257", "lastModified": "2024-11-21T05:42:20.027", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "ADJACENT_NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 3.3, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:A/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 6.5, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "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": "sirt@juniper.net", "type": "Secondary"}, {"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"}]}, "published": "2021-04-22T20:15:09.563", "references": [{"source": "sirt@juniper.net", "tags": ["Vendor Advisory"], "url": "https://kb.juniper.net/JSA11148"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://kb.juniper.net/JSA11148"}], "sourceIdentifier": "sirt@juniper.net", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-400"}], "source": "sirt@juniper.net", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-401"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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