{"dataType": "CVE_RECORD", "dataVersion": "5.0", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2023-22395", "assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "assignerShortName": "juniper", "dateUpdated": "2023-01-12T00:00:00", "dateReserved": "2022-12-27T00:00:00", "datePublished": "2023-01-12T00:00:00"}, "containers": {"cna": {"title": "Junos OS: In an MPLS scenario the processing of specific packets to the device causes a buffer leak and ultimately a loss of connectivity", "datePublic": "2023-01-11T00:00:00", "providerMetadata": {"orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968", "shortName": "juniper", "dateUpdated": "2023-01-12T00:00:00"}, "descriptions": [{"lang": "en", "value": "A Missing Release of Memory after Effective Lifetime vulnerability in the kernel of Juniper Networks Junos OS allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS). In an MPLS scenario specific packets destined to an Integrated Routing and Bridging (irb) interface of the device will cause a buffer (mbuf) to leak. Continued receipt of these specific packets will eventually cause a loss of connectivity to and from the device, and requires a reboot to recover. These mbufs can be monitored by using the CLI command 'show system buffers': user@host> show system buffers 783/1497/2280 mbufs in use (current/cache/total) user@host> show system buffers 793/1487/2280 mbufs in use (current/cache/total) <<<<<< mbuf usage increased This issue affects Juniper Networks Junos OS: All versions prior to 19.3R3-S7; 19.4 versions prior to 19.4R3-S9; 20.1 version 20.1R1 and later versions; 20.2 versions prior to 20.2R3-S5; 20.3 versions prior to 20.3R3-S5; 20.4 versions prior to 20.4R3-S4; 21.1 versions prior to 21.1R3-S3; 21.2 versions prior to 21.2R3-S2; 21.3 versions prior to 21.3R3-S1; 21.4 versions prior to 21.4R3; 22.1 versions prior to 22.1R2."}], "affected": [{"vendor": "Juniper Networks", "product": "Junos OS", "versions": [{"version": "unspecified", "lessThan": "19.3R3-S7", "status": "affected", "versionType": "custom"}, {"version": "19.4", "status": "affected", "lessThan": "19.4R3-S9", "versionType": "custom"}, {"version": "20.1R1", "status": "affected", "lessThan": "20.1*", "versionType": "custom"}, {"version": "20.2", "status": "affected", "lessThan": "20.2R3-S5", "versionType": "custom"}, {"version": "20.3", "status": "affected", "lessThan": "20.3R3-S5", "versionType": "custom"}, {"version": "20.4", "status": "affected", "lessThan": "20.4R3-S4", "versionType": "custom"}, {"version": "21.1", "status": "affected", "lessThan": "21.1R3-S3", "versionType": "custom"}, {"version": "21.2", "status": "affected", "lessThan": "21.2R3-S2", "versionType": "custom"}, {"version": "21.3", "status": "affected", "lessThan": "21.3R3-S1", "versionType": "custom"}, {"version": "21.4", "status": "affected", "lessThan": "21.4R3", "versionType": "custom"}, {"version": "22.1", "status": "affected", "lessThan": "22.1R2", "versionType": "custom"}]}], "references": [{"url": "https://kb.juniper.net/JSA70191"}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "attackVector": "ADJACENT_NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM"}}], "problemTypes": [{"descriptions": [{"type": "CWE", "lang": "en", "description": "CWE-401 Missing Release of Memory after Effective Lifetime", "cweId": "CWE-401"}]}, {"descriptions": [{"type": "text", "lang": "en", "description": "Denial of Service (DoS)"}]}], "x_generator": {"engine": "Vulnogram 0.0.9"}, "source": {"advisory": "JSA70191", "defect": ["1666181"], "discovery": "USER"}, "configurations": [{"lang": "en", "value": "To be exposed to this vulnerability a minimal IRB configuration like in the following example needs to be present:\n\n [interfaces irb unit <unit> family inet address <IP-adress>]"}], "workarounds": [{"lang": "en", "value": "There are no known workarounds for this issue."}], "exploits": [{"lang": "en", "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."}], "solutions": [{"lang": "en", "value": "The following software releases have been updated to resolve this specific issue: 19.3R3-S7, 19.4R3-S9, 20.2R3-S5, 20.3R3-S5, 20.4R3-S4, 21.1R3-S3, 21.2R3-S2, 21.3R3-S1, 21.4R3, 22.1R2, 22.2R1, and all subsequent releases."}]}}}

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attacker to cause a Denial of Service (DoS). In an MPLS scenario specific packets destined to an Integrated Routing and Bridging (irb) interface of the device will cause a buffer (mbuf) to leak. Continued receipt of these specific packets will eventually cause a loss of connectivity to and from the device, and requires a reboot to recover. These mbufs can be monitored by using the CLI command 'show system buffers': user@host> show system buffers 783/1497/2280 mbufs in use (current/cache/total) user@host> show system buffers 793/1487/2280 mbufs in use (current/cache/total) <<<<<< mbuf usage increased This issue affects Juniper Networks Junos OS: All versions prior to 19.3R3-S7; 19.4 versions prior to 19.4R3-S9; 20.1 version 20.1R1 and later versions; 20.2 versions prior to 20.2R3-S5; 20.3 versions prior to 20.3R3-S5; 20.4 versions prior to 20.4R3-S4; 21.1 versions prior to 21.1R3-S3; 21.2 versions prior to 21.2R3-S2; 21.3 versions prior to 21.3R3-S1; 21.4 versions prior to 21.4R3; 22.1 versions prior to 22.1R2."}, {"lang": "es", "value": "Una vulnerabilidad de Missing Release of Memory after Effective Lifetime en el kernel de Juniper Networks Junos OS permite que un atacante adyacente no autenticado provoque una denegaci\u00f3n de servicio (DoS). En un escenario MPLS, los paquetes espec\u00edficos destinados a una interfaz de enrutamiento y puente integrados (irb) del dispositivo provocar\u00e1n una fuga de un b\u00fafer (mbuf). La recepci\u00f3n continua de estos paquetes espec\u00edficos eventualmente provocar\u00e1 una p\u00e9rdida de conectividad hacia y desde el dispositivo, y requerir\u00e1 un reinicio para recuperarse. Estos mbufs se pueden monitorear usando el comando CLI 'show system b\u00fafers': user@host&gt; muestra los b\u00fafers del sistema 783/1497/2280 mbufs en uso (actual/cach\u00e9/total) usuario@host&gt; mostrar los b\u00fafers del sistema 793/1487/2280 mbufs en uso (actual/cach\u00e9/total) &lt;&lt;&lt;&lt;&lt;&lt; aumento del uso de mbuf. Este problema afecta a Juniper Networks Junos OS: todas las versiones anteriores a 19.3R3-S7; Versiones 19.4 anteriores a 19.4R3-S9; 20.1 versi\u00f3n 20.1R1 y versiones posteriores; Versiones 20.2 anteriores a 20.2R3-S5; Versiones 20.3 anteriores a 20.3R3-S5; Versiones 20.4 anteriores a 20.4R3-S4; Versiones 21.1 anteriores a 21.1R3-S3; Versiones 21.2 anteriores a 21.2R3-S2; Versiones 21.3 anteriores a 21.3R3-S1; Versiones 21.4 anteriores a 21.4R3; Versiones 22.1 anteriores a 22.1R2."}], "id": "CVE-2023-22395", "lastModified": "2023-01-24T18:53:36.647", "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": "sirt@juniper.net", "type": "Primary"}]}, "published": "2023-01-13T00:15:10.117", "references": [{"source": "sirt@juniper.net", "tags": ["Vendor Advisory"], "url": "https://kb.juniper.net/JSA70191"}], "sourceIdentifier": "sirt@juniper.net", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-401"}], "source": "sirt@juniper.net", "type": "Secondary"}]}

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