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
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.
Impacted products
Vendor Product Version
cisco ios 15.4\(1\)s
cisco ios_xe *
cisco 1000_integrated_services_router -
cisco 1100-4g\/6g_integrated_services_router -
cisco 1100-4g_integrated_services_router -
cisco 1100-4gltegb_integrated_services_router -
cisco 1100-4gltena_integrated_services_router -
cisco 1100-4p_integrated_services_router -
cisco 1100-6g_integrated_services_router -
cisco 1100-8p_integrated_services_router -
cisco 1100-lte_integrated_services_router -
cisco 1100_integrated_services_router -
cisco 1101-4p_integrated_services_router -
cisco 1101_integrated_services_router -
cisco 1109-2p_integrated_services_router -
cisco 1109-4p_integrated_services_router -
cisco 1109_integrated_services_router -
cisco 1111x-8p_integrated_services_router -
cisco 1111x_integrated_services_router -
cisco 111x_integrated_services_router -
cisco 1120_integrated_services_router -
cisco 1131_integrated_services_router -
cisco 1160_integrated_services_router -
cisco 1801_integrated_service_router -
cisco 1802_integrated_service_router -
cisco 1803_integrated_service_router -
cisco 1811_integrated_service_router -
cisco 1812_integrated_service_router -
cisco 1841_integrated_service_router -
cisco 1861_integrated_service_router -
cisco 1905_integrated_services_router -
cisco 1906c_integrated_services_router -
cisco 1921_integrated_services_router -
cisco 1941_integrated_services_router -
cisco 1941w_integrated_services_router -
cisco 4000_integrated_services_router -
cisco 422_integrated_services_router -
cisco 4221_integrated_services_router -
cisco 4321\/k9-rf_integrated_services_router -
cisco 4321\/k9-ws_integrated_services_router -
cisco 4321\/k9_integrated_services_router -
cisco 4321_integrated_services_router -
cisco 4331\/k9-rf_integrated_services_router -
cisco 4331\/k9-ws_integrated_services_router -
cisco 4331\/k9_integrated_services_router -
cisco 4331_integrated_services_router -
cisco 4351\/k9-rf_integrated_services_router -
cisco 4351\/k9-ws_integrated_services_router -
cisco 4351\/k9_integrated_services_router -
cisco 4351_integrated_services_router -
cisco 4431_integrated_services_router -
cisco 44461_integrated_services_router -
cisco 4451-x_integrated_services_router -
cisco 4451_integrated_services_router -
cisco 4461_integrated_services_router -
cisco 8101-32fh -
cisco 8101-32h -
cisco 8102-64h -
cisco 8201 -
cisco 8201-32fh -
cisco 8202 -
cisco 8208 -
cisco 8212 -
cisco 8218 -
cisco 8800_12-slot -
cisco 8800_18-slot -
cisco 8800_4-slot -
cisco 8800_8-slot -
cisco 8804 -
cisco 8808 -
cisco 8812 -
cisco 8818 -
cisco 8831 -
cisco 9800-40 -
cisco 9800-80 -
cisco 9800-cl -
cisco 9800-l -
cisco asr_1000 -
cisco asr_1000-esp100 -
cisco asr_1000-esp100-x -
cisco asr_1000-esp200-x -
cisco asr_1000-x -
cisco asr_1001 -
cisco asr_1001-hx -
cisco asr_1001-hx_r -
cisco asr_1001-x -
cisco asr_1001-x_r -
cisco asr_1002 -
cisco asr_1002-hx -
cisco asr_1002-hx_r -
cisco asr_1002-x -
cisco asr_1002-x_r -
cisco asr_1004 -
cisco asr_1006 -
cisco asr_1006-x -
cisco asr_1009-x -
cisco asr_1013 -
cisco asr_1023 -
cisco asr_900 -
cisco asr_901-12c-f-d -
cisco asr_901-12c-ft-d -
cisco asr_901-4c-f-d -
cisco asr_901-4c-ft-d -
cisco asr_901-6cz-f-a -
cisco asr_901-6cz-f-d -
cisco asr_901-6cz-fs-a -
cisco asr_901-6cz-fs-d -
cisco asr_901-6cz-ft-a -
cisco asr_901-6cz-ft-d -
cisco asr_901s-2sg-f-ah -
cisco asr_901s-2sg-f-d -
cisco asr_901s-3sg-f-ah -
cisco asr_901s-3sg-f-d -
cisco asr_901s-4sg-f-d -
cisco asr_902 -
cisco asr_902u -
cisco catalyst_8200 -
cisco catalyst_8300 -
cisco catalyst_8300-1n1s-4t2x -
cisco catalyst_8300-1n1s-6t -
cisco catalyst_8300-2n2s-4t2x -
cisco catalyst_8300-2n2s-6t -
cisco catalyst_8500 -
cisco catalyst_8500-4qc -
cisco catalyst_8500l -
cisco catalyst_8510csr -
cisco catalyst_8510msr -
cisco catalyst_8540csr -
cisco catalyst_8540msr -
cisco catalyst_9200 -
cisco catalyst_9200cx -
cisco catalyst_9200l -
cisco catalyst_9300 -
cisco catalyst_9300-24p-a -
cisco catalyst_9300-24p-e -
cisco catalyst_9300-24s-a -
cisco catalyst_9300-24s-e -
cisco catalyst_9300-24t-a -
cisco catalyst_9300-24t-e -
cisco catalyst_9300-24u-a -
cisco catalyst_9300-24u-e -
cisco catalyst_9300-24ux-a -
cisco catalyst_9300-24ux-e -
cisco catalyst_9300-48p-a -
cisco catalyst_9300-48p-e -
cisco catalyst_9300-48s-a -
cisco catalyst_9300-48s-e -
cisco catalyst_9300-48t-a -
cisco catalyst_9300-48t-e -
cisco catalyst_9300-48u-a -
cisco catalyst_9300-48u-e -
cisco catalyst_9300-48un-a -
cisco catalyst_9300-48un-e -
cisco catalyst_9300-48uxm-a -
cisco catalyst_9300-48uxm-e -
cisco catalyst_9300l -
cisco catalyst_9300l-24p-4g-a -
cisco catalyst_9300l-24p-4g-e -
cisco catalyst_9300l-24p-4x-a -
cisco catalyst_9300l-24p-4x-e -
cisco catalyst_9300l-24t-4g-a -
cisco catalyst_9300l-24t-4g-e -
cisco catalyst_9300l-24t-4x-a -
cisco catalyst_9300l-24t-4x-e -
cisco catalyst_9300l-48p-4g-a -
cisco catalyst_9300l-48p-4g-e -
cisco catalyst_9300l-48p-4x-a -
cisco catalyst_9300l-48p-4x-e -
cisco catalyst_9300l-48t-4g-a -
cisco catalyst_9300l-48t-4g-e -
cisco catalyst_9300l-48t-4x-a -
cisco catalyst_9300l-48t-4x-e -
cisco catalyst_9300l_stack -
cisco catalyst_9300lm -
cisco catalyst_9300x -
cisco catalyst_9400 -
cisco catalyst_9400_supervisor_engine-1 -
cisco catalyst_9407r -
cisco catalyst_9410r -
cisco catalyst_9500 -
cisco catalyst_9500h -
cisco catalyst_9600 -
cisco catalyst_9600_supervisor_engine-1 -
cisco catalyst_9600x -
cisco catalyst_9800 -
cisco catalyst_9800-40 -
cisco catalyst_9800-80 -
cisco catalyst_9800-cl -
cisco catalyst_9800-l -
cisco catalyst_9800-l-c -
cisco catalyst_9800-l-f -
cisco catalyst_ie3200_rugged_switch -
cisco catalyst_ie3300_rugged_switch -
cisco cloud_services_router_1000v -
cisco esr-6300-con-k9 -
cisco esr-6300-ncp-k9 -
cisco integrated_services_virtual_router -
cisco network_convergence_system_520 -



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  "cisaExploitAdd": "2022-03-03",
  "cisaRequiredAction": "Apply updates per vendor instructions.",
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  ],
  "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
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    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
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          "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"
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  },
  "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
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.



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    },
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      "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)."
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  ],
  "id": "CVE-2019-12647",
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  "metrics": {
    "cvssMetricV2": [
      {
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}

Vulnerability from fkie_nvd
Published
2019-09-25 21:15
Modified
2024-11-21 04:23
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.
Impacted products
Vendor Product Version
cisco ios_xe 16.6.1
cisco ios_xe 16.8.1
cisco 1100_integrated_services_r -
cisco 4221_integrated_services_r -
cisco 4321_integrated_services_r -
cisco 4331_integrated_services_r -
cisco 4351_integrated_services_r -
cisco 4431_integrated_services_r -
cisco 4451-x_integrated_services_r -
cisco asr_1000 -
cisco asr_1001-hx_r -
cisco asr_1001-x_r -
cisco asr_1002-hx_r -
cisco asr_1002-x_r -
cisco asr_900 -
cisco asr_900_ -
cisco asr_920-10sz-pd_r -
cisco asr_920-12cz-a_r -
cisco asr_920-12cz-d_r -
cisco asr_920-12sz-im_r -
cisco asr_920-24sz-im_r -
cisco asr_920-24sz-m_r -
cisco asr_920-24tz-m_r -
cisco asr_920-4sz-a_r -
cisco asr_920-4sz-d_r -
cisco catalyst_3650-12x48uq-e -
cisco catalyst_3650-12x48uq-l -
cisco catalyst_3650-12x48uq-s -
cisco catalyst_3650-12x48ur-e -
cisco catalyst_3650-12x48ur-l -
cisco catalyst_3650-12x48ur-s -
cisco catalyst_3650-12x48uz-e -
cisco catalyst_3650-24pd-e -
cisco catalyst_3650-24pd-l -
cisco catalyst_3650-24pd-s -
cisco catalyst_3650-24pdm-e -
cisco catalyst_3650-24pdm-l -
cisco catalyst_3650-24pdm-s -
cisco catalyst_3650-24ps-e -
cisco catalyst_3650-24ps-l -
cisco catalyst_3650-24ps-s -
cisco catalyst_3650-24td-e -
cisco catalyst_3650-24td-l -
cisco catalyst_3650-24td-s -
cisco catalyst_3650-24ts-e -
cisco catalyst_3650-24ts-l -
cisco catalyst_3650-24ts-s -
cisco catalyst_3650-48fd-e -
cisco catalyst_3650-48fd-l -
cisco catalyst_3650-48fd-s -
cisco catalyst_3650-48fq-e -
cisco catalyst_3650-48fq-l -
cisco catalyst_3650-48fq-s -
cisco catalyst_3650-48fqm-e -
cisco catalyst_3650-48fqm-l -
cisco catalyst_3650-48fqm-s -
cisco catalyst_3650-48fs-e -
cisco catalyst_3650-48fs-l -
cisco catalyst_3650-48fs-s -
cisco catalyst_3650-48pd-e -
cisco catalyst_3650-48pd-l -
cisco catalyst_3650-48pd-s -
cisco catalyst_3650-48pq-e -
cisco catalyst_3650-48pq-l -
cisco catalyst_3650-48pq-s -
cisco catalyst_3650-48ps-e -
cisco catalyst_3650-48ps-l -
cisco catalyst_3650-48ps-s -
cisco catalyst_3650-48td-e -
cisco catalyst_3650-48td-l -
cisco catalyst_3650-48td-s -
cisco catalyst_3650-48tq-e -
cisco catalyst_3650-48tq-l -
cisco catalyst_3650-48tq-s -
cisco catalyst_3650-48ts-e -
cisco catalyst_3650-48ts-l -
cisco catalyst_3650-48ts-s -
cisco catalyst_3650-8x24uq-e -
cisco catalyst_3650-8x24uq-l -
cisco catalyst_3650-8x24uq-s -
cisco catalyst_3850-12s-e -
cisco catalyst_3850-12s-s -
cisco catalyst_3850-12xs-e -
cisco catalyst_3850-12xs-s -
cisco catalyst_3850-16xs-e -
cisco catalyst_3850-16xs-s -
cisco catalyst_3850-24p-e -
cisco catalyst_3850-24p-l -
cisco catalyst_3850-24p-s -
cisco catalyst_3850-24s-e -
cisco catalyst_3850-24s-s -
cisco catalyst_3850-24t-e -
cisco catalyst_3850-24t-l -
cisco catalyst_3850-24t-s -
cisco catalyst_3850-24u-e -
cisco catalyst_3850-24u-l -
cisco catalyst_3850-24u-s -
cisco catalyst_3850-24xs-e -
cisco catalyst_3850-24xs-s -
cisco catalyst_3850-24xu-e -
cisco catalyst_3850-24xu-l -
cisco catalyst_3850-24xu-s -
cisco catalyst_3850-32xs-e -
cisco catalyst_3850-32xs-s -
cisco catalyst_3850-48f-e -
cisco catalyst_3850-48f-l -
cisco catalyst_3850-48f-s -
cisco catalyst_3850-48p-e -
cisco catalyst_3850-48p-l -
cisco catalyst_3850-48p-s -
cisco catalyst_3850-48t-e -
cisco catalyst_3850-48t-l -
cisco catalyst_3850-48t-s -
cisco catalyst_3850-48u-e -
cisco catalyst_3850-48u-l -
cisco catalyst_3850-48u-s -
cisco catalyst_3850-48xs-e -
cisco catalyst_3850-48xs-f-e -
cisco catalyst_3850-48xs-f-s -
cisco catalyst_3850-48xs-s -
cisco catalyst_9300 -
cisco catalyst_9300-24p-a -
cisco catalyst_9300-24p-e -
cisco catalyst_9300-24t-a -
cisco catalyst_9300-24t-e -
cisco catalyst_9300-24u-a -
cisco catalyst_9300-24u-e -
cisco catalyst_9300-48p-a -
cisco catalyst_9300-48p-e -
cisco catalyst_9300-48t-a -
cisco catalyst_9300-48t-e -
cisco catalyst_9300-48u-a -
cisco catalyst_9300-48u-e -
cisco catalyst_9400_supervisor_engine-1 -
cisco catalyst_9407r -
cisco catalyst_9410r -
cisco catalyst_9500 -
cisco catalyst_c3850-12x48u-e -
cisco catalyst_c3850-12x48u-l -
cisco catalyst_c3850-12x48u-s -
cisco catalyst_c9500-12q-a -
cisco catalyst_c9500-12q-e -
cisco catalyst_c9500-24q-a -
cisco catalyst_c9500-24q-e -
cisco catalyst_c9500-40x-a -
cisco catalyst_c9500-40x-e -
cisco cloud_services_r_1000v -
cisco ncs_4201 -
cisco ncs_4202 -
cisco ncs_4206 -
cisco ncs_4216 -
cisco network_convergence_system_520 -



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cve-2019-12647
Vulnerability from cvelistv5
Published
2019-09-25 20:05
Modified
2024-11-19 18:56
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.
Impacted products
Vendor Product Version
Show details on NVD website


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cve-2019-12658
Vulnerability from cvelistv5
Published
2019-09-25 20:16
Modified
2024-11-19 18:55
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.
Impacted products
Vendor Product Version
Show details on NVD website


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cve-2017-12319
Vulnerability from cvelistv5
Published
2018-03-27 09:00
Modified
2024-11-15 17:54
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.
Impacted products
Vendor Product Version
Show details on NVD website


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