{"containers": {"cna": {"affected": [{"product": "Cisco Email Security Appliance (ESA)", "vendor": "Cisco", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2021-11-03T00:00:00", "descriptions": [{"lang": "en", "value": "A vulnerability in the email scanning algorithm of Cisco AsyncOS software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to perform a denial of service (DoS) attack against an affected device. This vulnerability is due to insufficient input validation of incoming emails. An attacker could exploit this vulnerability by sending a crafted email through Cisco ESA. A successful exploit could allow the attacker to exhaust all the available CPU resources on an affected device for an extended period of time, preventing other emails from being processed and resulting in a DoS condition."}], "exploits": [{"lang": "en", "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."}], "metrics": [{"cvssV3_1": {"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"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-770", "description": "CWE-770", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-11-04T15:40:17", "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco"}, "references": [{"name": "20211103 Cisco Email Security Appliance Denial of Service Vulnerability", "tags": ["vendor-advisory", "x_refsource_CISCO"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-dos-JOm9ETfO"}], "source": {"advisory": "cisco-sa-esa-dos-JOm9ETfO", "defect": [["CSCvy59938"]], "discovery": "INTERNAL"}, "title": "Cisco Email Security Appliance Denial of Service Vulnerability", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "psirt@cisco.com", "DATE_PUBLIC": "2021-11-03T16:00:00", "ID": "CVE-2021-34741", "STATE": "PUBLIC", "TITLE": "Cisco Email Security Appliance Denial of Service Vulnerability"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Cisco Email Security Appliance (ESA)", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "Cisco"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "A vulnerability in the email scanning algorithm of Cisco AsyncOS software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to perform a denial of service (DoS) attack against an affected device. This vulnerability is due to insufficient input validation of incoming emails. An attacker could exploit this vulnerability by sending a crafted email through Cisco ESA. A successful exploit could allow the attacker to exhaust all the available CPU resources on an affected device for an extended period of time, preventing other emails from being processed and resulting in a DoS condition."}]}, "exploit": [{"lang": "en", "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."}], "impact": {"cvss": {"baseScore": "7.5", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-770"}]}]}, "references": {"reference_data": [{"name": "20211103 Cisco Email Security Appliance Denial of Service Vulnerability", "refsource": "CISCO", "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-dos-JOm9ETfO"}]}, "source": {"advisory": "cisco-sa-esa-dos-JOm9ETfO", "defect": [["CSCvy59938"]], "discovery": "INTERNAL"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T00:19:48.129Z"}, "title": "CVE Program Container", "references": [{"name": "20211103 Cisco Email Security Appliance Denial of Service Vulnerability", "tags": ["vendor-advisory", "x_refsource_CISCO", "x_transferred"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-dos-JOm9ETfO"}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2024-11-07T21:44:16.445690Z", "id": "CVE-2021-34741", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-11-07T21:44:52.277Z"}}]}, "cveMetadata": {"assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "assignerShortName": "cisco", "cveId": "CVE-2021-34741", "datePublished": "2021-11-04T15:40:17.777881Z", "dateReserved": "2021-06-15T00:00:00", "dateUpdated": "2024-11-07T21:44:52.277Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-dos-JOm9ETfO", "name": "20211103 Cisco Email Security Appliance Denial of Service Vulnerability", "tags": ["vendor-advisory", "x_refsource_CISCO", "x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T00:19:48.129Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-34741", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-11-07T21:44:16.445690Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-11-07T21:44:40.920Z"}}], "cna": {"title": "Cisco Email Security Appliance Denial of Service Vulnerability", "source": {"defect": [["CSCvy59938"]], "advisory": "cisco-sa-esa-dos-JOm9ETfO", "discovery": "INTERNAL"}, "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}], "affected": [{"vendor": "Cisco", "product": "Cisco Email Security Appliance (ESA)", "versions": [{"status": "affected", "version": "n/a"}]}], "exploits": [{"lang": "en", "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."}], "datePublic": "2021-11-03T00:00:00", "references": [{"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-dos-JOm9ETfO", "name": "20211103 Cisco Email Security Appliance Denial of Service Vulnerability", "tags": ["vendor-advisory", "x_refsource_CISCO"]}], "descriptions": [{"lang": "en", "value": "A vulnerability in the email scanning algorithm of Cisco AsyncOS software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to perform a denial of service (DoS) attack against an affected device. This vulnerability is due to insufficient input validation of incoming emails. An attacker could exploit this vulnerability by sending a crafted email through Cisco ESA. A successful exploit could allow the attacker to exhaust all the available CPU resources on an affected device for an extended period of time, preventing other emails from being processed and resulting in a DoS condition."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-770", "description": "CWE-770"}]}], "providerMetadata": {"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco", "dateUpdated": "2021-11-04T15:40:17"}, "x_legacyV4Record": {"impact": {"cvss": {"version": "3.0", "baseScore": "7.5", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}}, "source": {"defect": [["CSCvy59938"]], "advisory": "cisco-sa-esa-dos-JOm9ETfO", "discovery": "INTERNAL"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"version": {"version_data": [{"version_value": "n/a"}]}, "product_name": "Cisco Email Security Appliance (ESA)"}]}, "vendor_name": "Cisco"}]}}, "exploit": [{"lang": "en", "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."}], "data_type": "CVE", "references": {"reference_data": [{"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-dos-JOm9ETfO", "name": "20211103 Cisco Email Security Appliance Denial of Service Vulnerability", "refsource": "CISCO"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "eng", "value": "A vulnerability in the email scanning algorithm of Cisco AsyncOS software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to perform a denial of service (DoS) attack against an affected device. This vulnerability is due to insufficient input validation of incoming emails. An attacker could exploit this vulnerability by sending a crafted email through Cisco ESA. A successful exploit could allow the attacker to exhaust all the available CPU resources on an affected device for an extended period of time, preventing other emails from being processed and resulting in a DoS condition."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-770"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2021-34741", "STATE": "PUBLIC", "TITLE": "Cisco Email Security Appliance Denial of Service Vulnerability", "ASSIGNER": "psirt@cisco.com", "DATE_PUBLIC": "2021-11-03T16:00:00"}}}}, "cveMetadata": {"cveId": "CVE-2021-34741", "state": "PUBLISHED", "dateUpdated": "2024-11-07T21:44:52.277Z", "dateReserved": "2021-06-15T00:00:00", "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "datePublished": "2021-11-04T15:40:17.777881Z", "assignerShortName": "cisco"}, "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*", "matchCriteriaId": "415C4EC7-44E1-4C07-85F0-665A186237EC", "versionEndExcluding": "13.0.4", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:asyncos:13.5.3-010:*:*:*:*:*:*:*", "matchCriteriaId": "E2CCDF88-877D-4CB0-B7BD-24D317FA6F16", "vulnerable": true}, {"criteria": "cpe:2.3:o:cisco:asyncos:13.7.0-093:*:*:*:*:*:*:*", "matchCriteriaId": "3E94354C-6D93-4136-A4B6-5F926E02CA12", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:cisco:m170:-:*:*:*:*:*:*:*", "matchCriteriaId": "1BD3B1B3-3AFD-4B4A-9FCC-F2EEFA497032", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:m190:-:*:*:*:*:*:*:*", "matchCriteriaId": "A56CF47B-72C9-4590-89B0-59D43CA65894", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:m380:-:*:*:*:*:*:*:*", "matchCriteriaId": "81DBE5E7-524E-458C-BA56-AA806A55ACAE", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:m390:-:*:*:*:*:*:*:*", "matchCriteriaId": "5DFD07C1-F2A7-4DCE-8269-C8B3D2DE1C22", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:m390x:-:*:*:*:*:*:*:*", "matchCriteriaId": "9107B3CD-A607-4C11-ACAC-ACE66DDA51F8", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:m680:-:*:*:*:*:*:*:*", "matchCriteriaId": "86AFDB92-73A0-4FF1-976E-0CD9D342A712", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:m690:-:*:*:*:*:*:*:*", "matchCriteriaId": "2BA39FE7-9CDA-41D3-B31D-33F9DB2FB0B0", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:m690x:-:*:*:*:*:*:*:*", "matchCriteriaId": "E68E58E5-00AB-41BB-85C0-6D65359A4DA3", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:s195:-:*:*:*:*:*:*:*", "matchCriteriaId": "9797CD28-48A3-45BD-BF68-F0DF6F5A5579", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:s395:-:*:*:*:*:*:*:*", "matchCriteriaId": "C6D20279-8176-449A-AF4C-E2C90F370B30", "vulnerable": false}, {"criteria": "cpe:2.3:h:cisco:s695:-:*:*:*:*:*:*:*", "matchCriteriaId": "D9408ADA-7A8F-4528-8236-65713CF642D5", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "descriptions": [{"lang": "en", "value": "A vulnerability in the email scanning algorithm of Cisco AsyncOS software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to perform a denial of service (DoS) attack against an affected device. This vulnerability is due to insufficient input validation of incoming emails. An attacker could exploit this vulnerability by sending a crafted email through Cisco ESA. A successful exploit could allow the attacker to exhaust all the available CPU resources on an affected device for an extended period of time, preventing other emails from being processed and resulting in a DoS condition."}, {"lang": "es", "value": "Una vulnerabilidad en el algoritmo de an\u00e1lisis del correo electr\u00f3nico del software Cisco AsyncOS para Cisco Email Security Appliance (ESA) podr\u00eda permitir a un atacante remoto no autenticado llevar a cabo un ataque de denegaci\u00f3n de servicio (DoS) contra un dispositivo afectado. Esta vulnerabilidad es debido a que la comprobaci\u00f3n de entrada de los correos electr\u00f3nicos entrantes es insuficiente. Un atacante podr\u00eda explotar esta vulnerabilidad mediante el env\u00edo de un correo electr\u00f3nico dise\u00f1ado mediante Cisco ESA. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante agotar todos los recursos de CPU disponibles en un dispositivo afectado durante un per\u00edodo prolongado de tiempo, impidiendo que otros correos electr\u00f3nicos sean procesados y dando lugar a una condici\u00f3n de DoS"}], "id": "CVE-2021-34741", "lastModified": "2024-11-21T06:11:05.927", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "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": "ykramarz@cisco.com", "type": "Secondary"}, {"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"}]}, "published": "2021-11-04T16:15:08.660", "references": [{"source": "ykramarz@cisco.com", "tags": ["Vendor Advisory"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-dos-JOm9ETfO"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-dos-JOm9ETfO"}], "sourceIdentifier": "ykramarz@cisco.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-770"}], "source": "ykramarz@cisco.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-770"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{}