All the vulnerabilites related to cisco - network_convergence_system_520
Vulnerability from fkie_nvd
Published
2018-03-27 09:29
Modified
2024-11-21 03:09
Severity ?
Summary
A vulnerability in the Border Gateway Protocol (BGP) over an Ethernet Virtual Private Network (EVPN) for Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the device to reload, resulting in a denial of service (DoS) condition, or potentially corrupt the BGP routing table, which could result in network instability. The vulnerability exists due to changes in the implementation of the BGP MPLS-Based Ethernet VPN RFC (RFC 7432) draft between IOS XE software releases. When the BGP Inclusive Multicast Ethernet Tag Route or BGP EVPN MAC/IP Advertisement Route update packet is received, it could be possible that the IP address length field is miscalculated. An attacker could exploit this vulnerability by sending a crafted BGP packet to an affected device after the BGP session was established. An exploit could allow the attacker to cause the affected device to reload or corrupt the BGP routing table; either outcome would result in a DoS. The vulnerability may be triggered when the router receives a crafted BGP message from a peer on an existing BGP session. This vulnerability affects all releases of Cisco IOS XE Software prior to software release 16.3 that support BGP EVPN configurations. If the device is not configured for EVPN, it is not vulnerable. Cisco Bug IDs: CSCui67191, CSCvg52875.
References
▼ | URL | Tags | |
---|---|---|---|
ykramarz@cisco.com | http://www.securityfocus.com/bid/101676 | Broken Link, Third Party Advisory, VDB Entry | |
ykramarz@cisco.com | https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171103-bgp | Vendor Advisory | |
af854a3a-2127-422b-91ae-364da2661108 | http://www.securityfocus.com/bid/101676 | Broken Link, Third Party Advisory, VDB Entry | |
af854a3a-2127-422b-91ae-364da2661108 | https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171103-bgp | Vendor Advisory |
Impacted products
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"86879AC0-890E-42F4-9561-6851F38FE0AD", "vulnerable": false }, { "criteria": "cpe:2.3:h:cisco:catalyst_ie3300_rugged_switch:-:*:*:*:*:*:*:*", "matchCriteriaId": "19017B10-F630-42CD-ACD2-E817FEF0E7F1", "vulnerable": false }, { "criteria": "cpe:2.3:h:cisco:cloud_services_router_1000v:-:*:*:*:*:*:*:*", "matchCriteriaId": "4CCB8270-A01D-40A6-BF4B-26BAF65E68F3", "vulnerable": false }, { "criteria": "cpe:2.3:h:cisco:esr-6300-con-k9:-:*:*:*:*:*:*:*", "matchCriteriaId": "B5E69A6F-DFC0-4C8A-B77F-B7329FA5F567", "vulnerable": false }, { "criteria": "cpe:2.3:h:cisco:esr-6300-ncp-k9:-:*:*:*:*:*:*:*", "matchCriteriaId": "2BA015C4-7163-4FCD-ADE1-D5481B10EACA", "vulnerable": false }, { "criteria": "cpe:2.3:h:cisco:integrated_services_virtual_router:-:*:*:*:*:*:*:*", "matchCriteriaId": "5361C70A-C036-4254-9698-BC58F48C465B", "vulnerable": false }, { "criteria": "cpe:2.3:h:cisco:network_convergence_system_520:-:*:*:*:*:*:*:*", "matchCriteriaId": "E7A35D05-30AC-460F-ADBF-5B7EB0801ACD", "vulnerable": false } ], "negate": false, "operator": "OR" } ], "operator": "AND" } ], "cveTags": [], "descriptions": [ { "lang": "en", "value": "A vulnerability in the Border Gateway Protocol (BGP) over an Ethernet Virtual Private Network (EVPN) for Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the device to reload, resulting in a denial of service (DoS) condition, or potentially corrupt the BGP routing table, which could result in network instability. The vulnerability exists due to changes in the implementation of the BGP MPLS-Based Ethernet VPN RFC (RFC 7432) draft between IOS XE software releases. When the BGP Inclusive Multicast Ethernet Tag Route or BGP EVPN MAC/IP Advertisement Route update packet is received, it could be possible that the IP address length field is miscalculated. An attacker could exploit this vulnerability by sending a crafted BGP packet to an affected device after the BGP session was established. An exploit could allow the attacker to cause the affected device to reload or corrupt the BGP routing table; either outcome would result in a DoS. The vulnerability may be triggered when the router receives a crafted BGP message from a peer on an existing BGP session. This vulnerability affects all releases of Cisco IOS XE Software prior to software release 16.3 that support BGP EVPN configurations. If the device is not configured for EVPN, it is not vulnerable. Cisco Bug IDs: CSCui67191, CSCvg52875." }, { "lang": "es", "value": "Una vulnerabilidad en el protocolo BGP (Border Gateway Protocol) en una red Ethernet Virtual Private Network (EVPN) para Cisco IOS XE Software podr\u00eda permitir que un atacante remoto no autenticado haga que el dispositivo se reinicie, lo que da lugar a una denegaci\u00f3n de servicio (DoS) o, posiblemente, a que se corrompa la tabla de enrutamiento BGP, que a su vez puede dar como resultado la inestabilidad de la red. La vulnerabilidad existe debido a cambios en la implementaci\u00f3n de la versi\u00f3n de borrador de BGP MPLS-Based Ethernet VPN RFC (RFC 7432) entre distribuciones de software IOS XE. Cuando se reciben los paquetes de actualizaci\u00f3n BGP Inclusive Multicast Ethernet Tag Route or BGP EVPN MAC/IP Advertisement Route, es posible que el campo de longitud de direcci\u00f3n IP se calcule de manera incorrecta. Un atacante podr\u00eda explotar esta vulnerabilidad mediante el env\u00edo de un paquete BGP manipulado a un dispositivo afectado despu\u00e9s de que se establezca una sesi\u00f3n BGP. Un exploit podr\u00eda permitir que el atacante haga que se reinicie el dispositivo afectado o que corrompa la tabla de enrutamiento BGP. En cualquiera de los dos casos, el resultado ser\u00eda una denegaci\u00f3n de servicio (DoS). Esta vulnerabilidad puede tener lugar cuando el router recibe un mensaje BGP manipulado desde un peer o una sesi\u00f3n BGP existente. La vulnerabilidad afecta a todas las distribuciones de Cisco IOS XE Software anteriores a la versi\u00f3n 16.3 que soporta configuraciones BGP EVPN. Si el dispositivo no est\u00e1 configurado para EVPN, no es vulnerable. Cisco Bug IDs: CSCui67191, CSCvg52875." } ], "id": "CVE-2017-12319", "lastModified": "2024-11-21T03:09:18.213", "metrics": { "cvssMetricV2": [ { "acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": { "accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.1, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C", "version": "2.0" }, "exploitabilityScore": 8.6, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false } ], "cvssMetricV31": [ { "cvssData": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary" } ] }, "published": "2018-03-27T09:29:00.280", "references": [ { "source": "ykramarz@cisco.com", "tags": [ "Broken Link", "Third Party Advisory", "VDB Entry" ], "url": "http://www.securityfocus.com/bid/101676" }, { "source": "ykramarz@cisco.com", "tags": [ "Vendor Advisory" ], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171103-bgp" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Broken Link", "Third Party Advisory", "VDB Entry" ], "url": "http://www.securityfocus.com/bid/101676" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Vendor Advisory" ], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171103-bgp" } ], "sourceIdentifier": "ykramarz@cisco.com", "vulnStatus": "Modified", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-20" } ], "source": "ykramarz@cisco.com", "type": "Secondary" }, { "description": [ { "lang": "en", "value": "NVD-CWE-noinfo" } ], "source": "nvd@nist.gov", "type": "Primary" } ] }
Vulnerability from fkie_nvd
Published
2019-09-25 20:15
Modified
2024-11-21 04:23
Severity ?
Summary
A vulnerability in the Ident protocol handler of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability exists because the affected software incorrectly handles memory structures, leading to a NULL pointer dereference. An attacker could exploit this vulnerability by opening a TCP connection to specific ports and sending traffic over that connection. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition.
References
Impacted products
Vendor | Product | Version | |
---|---|---|---|
cisco | ios_xe | fuji-16.7.1 | |
cisco | ios_xe | fuji-16.8.1 | |
cisco | 1100 | - | |
cisco | 4221 | - | |
cisco | 4321 | - | |
cisco | 4351 | - | |
cisco | 4431 | - | |
cisco | 4451-x | - | |
cisco | asr_1000 | - | |
cisco | asr_1001-hx | - | |
cisco | asr_1001-x | - | |
cisco | asr_1002-hx | - | |
cisco | asr_1002-x | - | |
cisco | asr_900 | - | |
cisco | asr_920-10sz-pd | - | |
cisco | asr_920-12cz-a | - | |
cisco | asr_920-12cz-d | - | |
cisco | asr_920-12sz-im | - | |
cisco | asr_920-24sz-im | - | |
cisco | asr_920-24sz-m | - | |
cisco | asr_920-24tz-m | - | |
cisco | asr_920-4sz-a | - | |
cisco | asr_920-4sz-d | - | |
cisco | cloud_services_router_1000v | - | |
cisco | ncs_4201 | - | |
cisco | ncs_4202 | - | |
cisco | ncs_4206 | - | |
cisco | ncs_4216 | - | |
cisco | network_convergence_system_520 | - |
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The vulnerability exists because the affected software incorrectly handles memory structures, leading to a NULL pointer dereference. An attacker could exploit this vulnerability by opening a TCP connection to specific ports and sending traffic over that connection. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition." }, { "lang": "es", "value": "Una vulnerabilidad en el manejador del protocolo Ident de los Software Cisco IOS y IOS XE, podr\u00eda permitir a un atacante remoto no autenticado causar la recarga de un dispositivo afectado. La vulnerabilidad se presenta porque el software afectado maneja incorrectamente las estructuras de la memoria, lo que conlleva a una desreferencia del puntero NULL. Un atacante podr\u00eda explotar esta vulnerabilidad abriendo una conexi\u00f3n TCP en puertos espec\u00edficos y mediante el env\u00edo de tr\u00e1fico por medio de \u00e9sta conexi\u00f3n. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante causar que el dispositivo afectado se recargue, resultando en una condici\u00f3n de denegaci\u00f3n de servicio (DoS)." } ], "id": "CVE-2019-12647", "lastModified": "2024-11-21T04:23:15.310", "metrics": { "cvssMetricV2": [ { "acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": { "accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.8, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C", "version": "2.0" }, "exploitabilityScore": 10.0, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false } ], "cvssMetricV30": [ { "cvssData": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.6, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "version": "3.0" }, "exploitabilityScore": 3.9, "impactScore": 4.0, "source": "ykramarz@cisco.com", "type": "Secondary" } ], "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": "nvd@nist.gov", "type": "Primary" } ] }, "published": "2019-09-25T20:15:10.417", "references": [ { "source": "ykramarz@cisco.com", "tags": [ "Vendor Advisory" ], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-identd-dos" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Vendor Advisory" ], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-identd-dos" } ], "sourceIdentifier": "ykramarz@cisco.com", "vulnStatus": "Modified", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-476" } ], "source": "ykramarz@cisco.com", "type": "Secondary" }, { "description": [ { "lang": "en", "value": "CWE-476" } ], "source": "nvd@nist.gov", "type": "Primary" } ] }
Vulnerability from fkie_nvd
Published
2019-09-25 21:15
Modified
2024-11-21 04:23
Severity ?
Summary
A vulnerability in the filesystem resource management code of Cisco IOS XE Software could allow an unauthenticated, remote attacker to exhaust filesystem resources on an affected device and cause a denial of service (DoS) condition. The vulnerability is due to ineffective management of the underlying filesystem resources. An attacker could exploit this vulnerability by performing specific actions that result in messages being sent to specific operating system log files. A successful exploit could allow the attacker to exhaust available filesystem space on an affected device. This could cause the device to crash and reload, resulting in a DoS condition for clients whose network traffic is transiting the device. Upon reload of the device, the impacted filesystem space is cleared, and the device will return to normal operation. However, continued exploitation of this vulnerability could cause subsequent forced crashes and reloads, which could lead to an extended DoS condition.
References
Impacted products
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The vulnerability is due to ineffective management of the underlying filesystem resources. An attacker could exploit this vulnerability by performing specific actions that result in messages being sent to specific operating system log files. A successful exploit could allow the attacker to exhaust available filesystem space on an affected device. This could cause the device to crash and reload, resulting in a DoS condition for clients whose network traffic is transiting the device. Upon reload of the device, the impacted filesystem space is cleared, and the device will return to normal operation. However, continued exploitation of this vulnerability could cause subsequent forced crashes and reloads, which could lead to an extended DoS condition." }, { "lang": "es", "value": "Una vulnerabilidad en el c\u00f3digo de administraci\u00f3n de recursos del sistema de archivos del Software Cisco IOS XE, podr\u00eda permitir a un atacante remoto no autenticado agotar los recursos del sistema de archivos en un dispositivo afectado y cause una condici\u00f3n de denegaci\u00f3n de servicio (DoS). La vulnerabilidad es debido a la gesti\u00f3n ineficaz de los recursos del sistema de archivos subyacentes. Un atacante podr\u00eda explotar esta vulnerabilidad al llevar a cabo acciones espec\u00edficas que resulten en el env\u00edo de mensajes a archivos de registro espec\u00edficos del sistema operativo. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante agotar el espacio disponible del sistema de archivos en un dispositivo afectado. Esto podr\u00eda causar que el dispositivo se bloquee y se recargue, resultando en una condici\u00f3n DoS para los clientes cuyo tr\u00e1fico de red transita por el dispositivo. Tras la recarga del dispositivo, el espacio del sistema de archivos afectado se borra y el dispositivo volver\u00e1 a la operaci\u00f3n normal. Sin embargo, la explotaci\u00f3n continua de esta vulnerabilidad podr\u00eda causar bloqueos forzosos y recargas posteriores, lo que podr\u00eda conllevar a una condici\u00f3n DoS extendida." } ], "id": "CVE-2019-12658", "lastModified": "2024-11-21T04:23:17.553", "metrics": { "cvssMetricV2": [ { "acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": { "accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "COMPLETE", "baseScore": 7.8, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C", "version": "2.0" }, "exploitabilityScore": 10.0, "impactScore": 6.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false } ], "cvssMetricV30": [ { "cvssData": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.6, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "version": "3.0" }, "exploitabilityScore": 3.9, "impactScore": 4.0, "source": "ykramarz@cisco.com", "type": "Secondary" } ], "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": "nvd@nist.gov", "type": "Primary" } ] }, "published": "2019-09-25T21:15:10.953", "references": [ { "source": "ykramarz@cisco.com", "tags": [ "Vendor Advisory" ], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-iosxe-fsdos" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": [ "Vendor Advisory" ], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-iosxe-fsdos" } ], "sourceIdentifier": "ykramarz@cisco.com", "vulnStatus": "Modified", "weaknesses": [ { "description": [ { "lang": "en", "value": "CWE-400" } ], "source": "ykramarz@cisco.com", "type": "Secondary" }, { "description": [ { "lang": "en", "value": "NVD-CWE-Other" } ], "source": "nvd@nist.gov", "type": "Primary" } ] }
cve-2019-12647
Vulnerability from cvelistv5
Published
2019-09-25 20:05
Modified
2024-11-19 18:56
Severity ?
EPSS score ?
Summary
A vulnerability in the Ident protocol handler of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability exists because the affected software incorrectly handles memory structures, leading to a NULL pointer dereference. An attacker could exploit this vulnerability by opening a TCP connection to specific ports and sending traffic over that connection. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition.
References
▼ | URL | Tags |
---|---|---|
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-identd-dos | vendor-advisory, x_refsource_CISCO |
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A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition." } ], "exploits": [ { "lang": "en", "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory." } ], "metrics": [ { "cvssV3_0": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.6, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "version": "3.0" } } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-476", "description": "CWE-476", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2019-09-25T20:05:32", "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "shortName": "cisco" }, "references": [ { "name": "20190925 Cisco IOS and IOS XE Software IP Ident Denial of Service Vulnerability", "tags": [ "vendor-advisory", "x_refsource_CISCO" ], "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-identd-dos" } ], "source": { "advisory": "cisco-sa-20190925-identd-dos", "defect": [ [ "CSCvm01689" ] ], "discovery": "INTERNAL" }, "title": "Cisco IOS and IOS XE Software IP Ident Denial of Service Vulnerability", "x_legacyV4Record": { "CVE_data_meta": { "ASSIGNER": "psirt@cisco.com", "DATE_PUBLIC": "2019-09-25T16:00:00-0700", "ID": "CVE-2019-12647", "STATE": "PUBLIC", "TITLE": "Cisco IOS and IOS XE Software IP Ident Denial of Service Vulnerability" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "Cisco IOS", "version": { "version_data": [ { "affected": "\u003c", "version_affected": "\u003c", "version_value": "12.1(12)" } ] } } ] }, "vendor_name": "Cisco" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "A vulnerability in the Ident protocol handler of Cisco IOS and IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. 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A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition." } ] }, "exploit": [ { "lang": "en", "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory." } ], "impact": { "cvss": { "baseScore": "8.6", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "version": "3.0" } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-476" } ] } ] }, "references": { "reference_data": [ { "name": "20190925 Cisco IOS and IOS XE Software IP Ident Denial of Service Vulnerability", "refsource": "CISCO", "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-identd-dos" } ] }, "source": { "advisory": "cisco-sa-20190925-identd-dos", "defect": [ [ "CSCvm01689" ] ], "discovery": "INTERNAL" } } } }, "cveMetadata": { "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "assignerShortName": "cisco", "cveId": "CVE-2019-12647", "datePublished": "2019-09-25T20:05:32.919300Z", "dateReserved": "2019-06-04T00:00:00", "dateUpdated": "2024-11-19T18:56:32.819Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }
cve-2019-12658
Vulnerability from cvelistv5
Published
2019-09-25 20:16
Modified
2024-11-19 18:55
Severity ?
EPSS score ?
Summary
A vulnerability in the filesystem resource management code of Cisco IOS XE Software could allow an unauthenticated, remote attacker to exhaust filesystem resources on an affected device and cause a denial of service (DoS) condition. The vulnerability is due to ineffective management of the underlying filesystem resources. An attacker could exploit this vulnerability by performing specific actions that result in messages being sent to specific operating system log files. A successful exploit could allow the attacker to exhaust available filesystem space on an affected device. This could cause the device to crash and reload, resulting in a DoS condition for clients whose network traffic is transiting the device. Upon reload of the device, the impacted filesystem space is cleared, and the device will return to normal operation. However, continued exploitation of this vulnerability could cause subsequent forced crashes and reloads, which could lead to an extended DoS condition.
References
▼ | URL | Tags |
---|---|---|
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-iosxe-fsdos | vendor-advisory, x_refsource_CISCO |
Impacted products
Vendor | Product | Version | |
---|---|---|---|
▼ | Cisco | Cisco IOS XE Software 16.1.1 |
Version: unspecified < n/a |
|
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However, continued exploitation of this vulnerability could cause subsequent forced crashes and reloads, which could lead to an extended DoS condition." } ] }, "exploit": [ { "lang": "en", "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory." } ], "impact": { "cvss": { "baseScore": "8.6", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "version": "3.0" } }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-400" } ] } ] }, "references": { "reference_data": [ { "name": "20190925 Cisco IOS XE Software Filesystem Exhaustion Denial of Service Vulnerability", "refsource": "CISCO", "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-iosxe-fsdos" } ] }, "source": { "advisory": "cisco-sa-20190925-iosxe-fsdos", "defect": [ [ "CSCvf80363" ] ], "discovery": "INTERNAL" } } } }, "cveMetadata": { "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633", "assignerShortName": "cisco", "cveId": "CVE-2019-12658", "datePublished": "2019-09-25T20:16:01.470908Z", "dateReserved": "2019-06-04T00:00:00", "dateUpdated": "2024-11-19T18:55:00.290Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1" }
cve-2017-12319
Vulnerability from cvelistv5
Published
2018-03-27 09:00
Modified
2024-11-15 17:54
Severity ?
EPSS score ?
Summary
A vulnerability in the Border Gateway Protocol (BGP) over an Ethernet Virtual Private Network (EVPN) for Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the device to reload, resulting in a denial of service (DoS) condition, or potentially corrupt the BGP routing table, which could result in network instability. The vulnerability exists due to changes in the implementation of the BGP MPLS-Based Ethernet VPN RFC (RFC 7432) draft between IOS XE software releases. When the BGP Inclusive Multicast Ethernet Tag Route or BGP EVPN MAC/IP Advertisement Route update packet is received, it could be possible that the IP address length field is miscalculated. An attacker could exploit this vulnerability by sending a crafted BGP packet to an affected device after the BGP session was established. An exploit could allow the attacker to cause the affected device to reload or corrupt the BGP routing table; either outcome would result in a DoS. The vulnerability may be triggered when the router receives a crafted BGP message from a peer on an existing BGP session. This vulnerability affects all releases of Cisco IOS XE Software prior to software release 16.3 that support BGP EVPN configurations. If the device is not configured for EVPN, it is not vulnerable. Cisco Bug IDs: CSCui67191, CSCvg52875.
References
▼ | URL | Tags |
---|---|---|
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171103-bgp | x_refsource_CONFIRM | |
http://www.securityfocus.com/bid/101676 | vdb-entry, x_refsource_BID |
Impacted products
Vendor | Product | Version | |
---|---|---|---|
▼ | n/a | Cisco IOS XE |
Version: Cisco IOS XE |
|
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