{"containers": {"cna": {"affected": [{"platforms": ["SRX Series, MX Series"], "product": "Junos OS", "vendor": "Juniper Networks", "versions": [{"lessThan": "20.4R1", "status": "unaffected", "version": "unspecified", "versionType": "custom"}, {"lessThan": "20.4R3-S2", "status": "affected", "version": "20.4", "versionType": "custom"}, {"lessThan": "21.1R3-S2", "status": "affected", "version": "21.1", "versionType": "custom"}, {"changes": [{"at": "21.2R3", "status": "unaffected"}], "lessThan": "21.2R2-S2", "status": "affected", "version": "21.2", "versionType": "custom"}, {"lessThan": "21.3R2", "status": "affected", "version": "21.3", "versionType": "custom"}, {"lessThan": "21.4R2", "status": "affected", "version": "21.4", "versionType": "custom"}]}], "datePublic": "2022-07-13T00:00:00", "descriptions": [{"lang": "en", "value": "An Improper Release of Memory Before Removing Last Reference vulnerability in the Session Initiation Protocol (SIP) Application Layer Gateway (ALG) of Juniper Networks Junos OS allows unauthenticated network-based attacker to cause a partial Denial of Service (DoS). On all MX and SRX platforms, if the SIP ALG is enabled, receipt of a specific SIP packet will create a stale SIP entry. Sustained receipt of such packets will cause the SIP call table to eventually fill up and cause a DoS for all SIP traffic. The SIP call usage can be monitored by \"show security alg sip calls\". To be affected the SIP ALG needs to be enabled, either implicitly / by default or by way of configuration. Please verify on SRX with: user@host> show security alg status | match sip SIP : Enabled Please verify on MX whether the following is configured: [ services ... rule <rule-name> (term <term-name>) from/match application/application-set <name> ] where either a. name = junos-sip or an application or application-set refers to SIP: b. [ applications application <name> application-protocol sip ] or c. [ applications application-set <name> application junos-sip ] This issue affects Juniper Networks Junos OS on SRX Series and MX Series: 20.4 versions prior to 20.4R3-S2; 21.1 versions prior to 21.1R3-S2; 21.2 versions prior to 21.2R2-S2; 21.2 versions prior to 21.2R3; 21.3 versions prior to 21.3R2; 21.4 versions prior to 21.4R2. This issue does not affect Juniper Networks Junos OS versions prior to 20.4R1. 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On all MX and SRX platforms, if the SIP ALG is enabled, receipt of a specific SIP packet will create a stale SIP entry. Sustained receipt of such packets will cause the SIP call table to eventually fill up and cause a DoS for all SIP traffic. The SIP call usage can be monitored by \"show security alg sip calls\". To be affected the SIP ALG needs to be enabled, either implicitly / by default or by way of configuration. Please verify on SRX with: user@host> show security alg status | match sip SIP : Enabled Please verify on MX whether the following is configured: [ services ... rule <rule-name> (term <term-name>) from/match application/application-set <name> ] where either a. name = junos-sip or an application or application-set refers to SIP: b. [ applications application <name> application-protocol sip ] or c. [ applications application-set <name> application junos-sip ] This issue affects Juniper Networks Junos OS on SRX Series and MX Series: 20.4 versions prior to 20.4R3-S2; 21.1 versions prior to 21.1R3-S2; 21.2 versions prior to 21.2R2-S2; 21.2 versions prior to 21.2R3; 21.3 versions prior to 21.3R2; 21.4 versions prior to 21.4R2. This issue does not affect Juniper Networks Junos OS versions prior to 20.4R1. 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On all MX and SRX platforms, if the SIP ALG is enabled, receipt of a specific SIP packet will create a stale SIP entry. Sustained receipt of such packets will cause the SIP call table to eventually fill up and cause a DoS for all SIP traffic. The SIP call usage can be monitored by \"show security alg sip calls\". To be affected the SIP ALG needs to be enabled, either implicitly / by default or by way of configuration. Please verify on SRX with: user@host> show security alg status | match sip SIP : Enabled Please verify on MX whether the following is configured: [ services ... rule <rule-name> (term <term-name>) from/match application/application-set <name> ] where either a. name = junos-sip or an application or application-set refers to SIP: b. [ applications application <name> application-protocol sip ] or c. [ applications application-set <name> application junos-sip ] This issue affects Juniper Networks Junos OS on SRX Series and MX Series: 20.4 versions prior to 20.4R3-S2; 21.1 versions prior to 21.1R3-S2; 21.2 versions prior to 21.2R2-S2; 21.2 versions prior to 21.2R3; 21.3 versions prior to 21.3R2; 21.4 versions prior to 21.4R2. This issue does not affect Juniper Networks Junos OS versions prior to 20.4R1. Juniper SIRT is not aware of any malicious exploitation of this vulnerability."}, {"lang": "es", "value": "Una vulnerabilidad de liberaci\u00f3n inapropiada de memoria antes de eliminar la \u00faltima referencia en la puerta de enlace de la capa de aplicaci\u00f3n (ALG) del protocolo de iniciaci\u00f3n de sesiones (SIP) del Sistema Operativo Junos de Juniper Networks permite a un atacante no autenticado basado en la red causar una Denegaci\u00f3n de Servicio (DoS) parcial. En todas las plataformas MX y SRX, si la ALG SIP est\u00e1 habilitada, la recepci\u00f3n de un paquete SIP espec\u00edfico crear\u00e1 una entrada SIP antigua. La recepci\u00f3n sostenida de tales paquetes causar\u00e1 que la tabla de llamadas SIP se llene eventualmente y cause un DoS para todo el tr\u00e1fico SIP. El uso de llamadas SIP puede ser monitoreado por \"show security alg sip calls\". Para ser afectado el SIP ALG necesita ser habilitado, ya sea impl\u00edcitamente / por defecto o por medio de la configuraci\u00f3n. Por favor, verifique en el SRX con: user@host) show security alg status | match sip SIP : Enabled Por favor, verifique en MX si lo siguiente est\u00e1 configurado: [ services ... rule (rule-name) (term (term-name)) from/match application/application-set (name) ] donde a. name = junos-sip o una aplicaci\u00f3n o application-set se refiere a SIP: b. [ applications application (name) application-protocol sip ] o c. [ applications application-set (name) application junos-sip ] Este problema afecta a Juniper Networks Junos OS en las series SRX y MX: versiones 20.4 anteriores a 20.4R3-S2; versiones 21.1 anteriores a 21.1R3-S2; versiones 21.2 anteriores a 21.2R2-S2; versiones 21.2 anteriores a 21.2R3; versiones 21.3 anteriores a 21.3R2; versiones 21.4 anteriores a 21.4R2. Este problema no afecta a versiones del Sistema Operativo Junos de Juniper Networks anteriores a 20.4R1. El SIRT de Juniper no presenta conocimiento de ninguna explotaci\u00f3n maliciosa de esta vulnerabilidad"}], "id": "CVE-2022-22204", "lastModified": "2022-07-27T19:05:23.070", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.3, "baseSeverity": "MEDIUM", "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:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 5.3, "baseSeverity": "MEDIUM", "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:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "sirt@juniper.net", "type": "Secondary"}]}, "published": "2022-07-20T15:15:08.393", "references": [{"source": "sirt@juniper.net", "tags": ["Vendor Advisory"], "url": "https://kb.juniper.net/JSA69708"}], "sourceIdentifier": "sirt@juniper.net", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "source": "sirt@juniper.net", "type": "Primary"}]}

{}