All the vulnerabilites related to cisco - ncs_5500
Vulnerability from fkie_nvd
Published
2020-09-23 01:15
Modified
2024-11-21 04:29
Severity ?
Summary
Multiple vulnerabilities in the implementation of Border Gateway Protocol (BGP) Ethernet VPN (EVPN) functionality in Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerabilities are due to incorrect processing of BGP update messages that contain crafted EVPN attributes. An attacker could exploit these vulnerabilities by sending BGP EVPN update messages with malformed attributes to be processed by an affected system. A successful exploit could allow the attacker to cause the BGP process to restart unexpectedly, resulting in a DoS condition. The Cisco implementation of BGP accepts incoming BGP traffic only from explicitly defined peers. To exploit these vulnerabilities, the malicious BGP update message would need to come from a configured, valid BGP peer, or would need to be injected by the attacker into the victim's BGP network on an existing, valid TCP connection to a BGP peer.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| cisco | ios_xr | 6.6.1 | |
| cisco | asr_9000 | - | |
| cisco | asr_9010 | - | |
| cisco | asr_9904 | - | |
| cisco | asr_9910 | - | |
| cisco | asr_9912 | - | |
| cisco | asr_9922 | - | |
| cisco | ncs_540 | - | |
| cisco | ncs_5500 | - | |
| cisco | ncs_6000 | - | |
| cisco | ios_xr | 6.6.2 | |
| cisco | asr_9000 | - | |
| cisco | asr_9000 | - | |
| cisco | asr_9010 | - | |
| cisco | asr_9010 | - | |
| cisco | asr_9904 | - | |
| cisco | asr_9904 | - | |
| cisco | asr_9910 | - | |
| cisco | asr_9910 | - | |
| cisco | asr_9912 | - | |
| cisco | asr_9912 | - | |
| cisco | asr_9922 | - | |
| cisco | asr_9922 | - | |
| cisco | carrier_routing_system | - | |
| cisco | ios_xrv_9000 | - | |
| cisco | ncs_5001 | - | |
| cisco | ncs_5002 | - | |
| cisco | ncs_5011 | - | |
| cisco | ncs_540 | - | |
| cisco | ncs_5500 | - | |
| cisco | ncs_6000 | - | |
| cisco | ios_xr | 6.6.25 | |
| cisco | ncs_540 | - | |
| cisco | ncs_540l | - | |
| cisco | ncs_5500 | - | |
| cisco | ncs_560 | - | |
| cisco | ios_xr | 7.0.1 | |
| cisco | asr_9000 | - | |
| cisco | asr_9010 | - | |
| cisco | asr_9904 | - | |
| cisco | asr_9910 | - | |
| cisco | asr_9912 | - | |
| cisco | asr_9922 | - | |
| cisco | ios_xrv_9000 | - | |
| cisco | ncs_1001 | - | |
| cisco | ncs_1002 | - | |
| cisco | ncs_1004 | - | |
| cisco | ncs_5001 | - | |
| cisco | ncs_5002 | - | |
| cisco | ncs_5011 | - | |
| cisco | ncs_540 | - | |
| cisco | ncs_540l | - | |
| cisco | ncs_5500 | - | |
| cisco | ncs_560 | - | |
| cisco | ncs_6000 | - |
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},
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"value": "M\u00faltiples vulnerabilidades en la implementaci\u00f3n de la funcionalidad de Border Gateway Protocol (BGP) Ethernet VPN (EVPN) en Cisco IOS XR Software, podr\u00edan permitir a un atacante no autenticado remoto causar una condici\u00f3n de denegaci\u00f3n de servicio (DoS).\u0026#xa0;Las vulnerabilidades son debido al procesamiento incorrecto de los mensajes de actualizaci\u00f3n de BGP que contienen atributos EVPN dise\u00f1ados.\u0026#xa0;Un atacante podr\u00eda explotar estas vulnerabilidades mediante el env\u00edo de mensajes de actualizaci\u00f3n de BGP EVPN con atributos malformados para que sean procesados por un sistema afectado.\u0026#xa0;Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir a un atacante causar que el proceso BGP se reiniciara inesperadamente, resultando en una condici\u00f3n DoS.\u0026#xa0;La implementaci\u00f3n de Cisco de BGP acepta tr\u00e1fico BGP entrante solo de peers definidos expl\u00edcitamente.\u0026#xa0;Para explotar estas vulnerabilidades, el mensaje de actualizaci\u00f3n de BGP malicioso deber\u00eda provenir de un peer BGP v\u00e1lido configurado, o necesitar\u00eda ser inyectado por el atacante en la red BGP de la v\u00edctima en una conexi\u00f3n TCP v\u00e1lida existente a un peer BGP"
}
],
"id": "CVE-2019-16023",
"lastModified": "2024-11-21T04:29:56.880",
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}
Vulnerability from fkie_nvd
Published
2020-09-23 01:15
Modified
2024-11-21 04:29
Severity ?
Summary
Multiple vulnerabilities in the implementation of Border Gateway Protocol (BGP) Ethernet VPN (EVPN) functionality in Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerabilities are due to incorrect processing of BGP update messages that contain crafted EVPN attributes. An attacker could exploit these vulnerabilities by sending BGP EVPN update messages with malformed attributes to be processed by an affected system. A successful exploit could allow the attacker to cause the BGP process to restart unexpectedly, resulting in a DoS condition. The Cisco implementation of BGP accepts incoming BGP traffic only from explicitly defined peers. To exploit these vulnerabilities, the malicious BGP update message would need to come from a configured, valid BGP peer, or would need to be injected by the attacker into the victim's BGP network on an existing, valid TCP connection to a BGP peer.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| cisco | ios_xr | 6.6.1 | |
| cisco | asr_9000 | - | |
| cisco | asr_9010 | - | |
| cisco | asr_9904 | - | |
| cisco | asr_9910 | - | |
| cisco | asr_9912 | - | |
| cisco | asr_9922 | - | |
| cisco | ncs_540 | - | |
| cisco | ncs_5500 | - | |
| cisco | ncs_6000 | - | |
| cisco | ios_xr | 6.6.2 | |
| cisco | asr_9000 | - | |
| cisco | asr_9000 | - | |
| cisco | asr_9010 | - | |
| cisco | asr_9010 | - | |
| cisco | asr_9904 | - | |
| cisco | asr_9904 | - | |
| cisco | asr_9910 | - | |
| cisco | asr_9910 | - | |
| cisco | asr_9912 | - | |
| cisco | asr_9912 | - | |
| cisco | asr_9922 | - | |
| cisco | asr_9922 | - | |
| cisco | carrier_routing_system | - | |
| cisco | ios_xrv_9000 | - | |
| cisco | ncs_5001 | - | |
| cisco | ncs_5002 | - | |
| cisco | ncs_5011 | - | |
| cisco | ncs_540 | - | |
| cisco | ncs_5500 | - | |
| cisco | ncs_6000 | - | |
| cisco | ios_xr | 6.6.25 | |
| cisco | ncs_540 | - | |
| cisco | ncs_540l | - | |
| cisco | ncs_5500 | - | |
| cisco | ncs_560 | - | |
| cisco | ios_xr | 7.0.1 | |
| cisco | asr_9000 | - | |
| cisco | asr_9010 | - | |
| cisco | asr_9904 | - | |
| cisco | asr_9910 | - | |
| cisco | asr_9912 | - | |
| cisco | asr_9922 | - | |
| cisco | ios_xrv_9000 | - | |
| cisco | ncs_1001 | - | |
| cisco | ncs_1002 | - | |
| cisco | ncs_1004 | - | |
| cisco | ncs_5001 | - | |
| cisco | ncs_5002 | - | |
| cisco | ncs_5011 | - | |
| cisco | ncs_540 | - | |
| cisco | ncs_540l | - | |
| cisco | ncs_5500 | - | |
| cisco | ncs_560 | - | |
| cisco | ncs_6000 | - |
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"id": "CVE-2019-16021",
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Vulnerability from fkie_nvd
Published
2020-01-26 05:15
Modified
2024-11-21 04:29
Severity ?
Summary
A vulnerability in the implementation of the Intermediate System–to–Intermediate System (IS–IS) routing protocol functionality in Cisco IOS XR Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition in the IS–IS process. The vulnerability is due to improper handling of a Simple Network Management Protocol (SNMP) request for specific Object Identifiers (OIDs) by the IS–IS process. An attacker could exploit this vulnerability by sending a crafted SNMP request to the affected device. A successful exploit could allow the attacker to cause a DoS condition in the IS–IS process.
References
Impacted products
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"value": "A vulnerability in the implementation of the Intermediate System\u0026ndash;to\u0026ndash;Intermediate System (IS\u0026ndash;IS) routing protocol functionality in Cisco IOS XR Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition in the IS\u0026ndash;IS process. The vulnerability is due to improper handling of a Simple Network Management Protocol (SNMP) request for specific Object Identifiers (OIDs) by the IS\u0026ndash;IS process. An attacker could exploit this vulnerability by sending a crafted SNMP request to the affected device. A successful exploit could allow the attacker to cause a DoS condition in the IS\u0026ndash;IS process."
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"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2020-01-26T05:15:16.677",
"references": [
{
"source": "ykramarz@cisco.com",
"tags": [
"Vendor Advisory"
],
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},
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],
"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200122-ios-xr-dos"
}
],
"sourceIdentifier": "ykramarz@cisco.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-20"
}
],
"source": "ykramarz@cisco.com",
"type": "Secondary"
},
{
"description": [
{
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"value": "CWE-20"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
Vulnerability from fkie_nvd
Published
2023-09-13 17:15
Modified
2024-11-21 07:40
Severity ?
6.7 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
A vulnerability in the iPXE boot function of Cisco IOS XR software could allow an authenticated, local attacker to install an unverified software image on an affected device.
This vulnerability is due to insufficient image verification. An attacker could exploit this vulnerability by manipulating the boot parameters for image verification during the iPXE boot process on an affected device. A successful exploit could allow the attacker to boot an unverified software image on the affected device.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| cisco | ios_xr | * | |
| cisco | 8201 | - | |
| cisco | 8202 | - | |
| cisco | 8208 | - | |
| cisco | 8212 | - | |
| cisco | 8218 | - | |
| cisco | 8804 | - | |
| cisco | 8808 | - | |
| cisco | 8812 | - | |
| cisco | 8818 | - | |
| cisco | 8831 | - | |
| cisco | asr_9000 | - | |
| cisco | asr_9000v | - | |
| cisco | asr_9001 | - | |
| cisco | asr_9006 | - | |
| cisco | asr_9010 | - | |
| cisco | asr_9901 | - | |
| cisco | asr_9902 | - | |
| cisco | asr_9903 | - | |
| cisco | asr_9904 | - | |
| cisco | asr_9906 | - | |
| cisco | asr_9910 | - | |
| cisco | asr_9912 | - | |
| cisco | asr_9920 | - | |
| cisco | asr_9922 | - | |
| cisco | ncs_1001 | - | |
| cisco | ncs_1002 | - | |
| cisco | ncs_1004 | - | |
| cisco | ncs_4009 | - | |
| cisco | ncs_4016 | - | |
| cisco | ncs_4201 | - | |
| cisco | ncs_4202 | - | |
| cisco | ncs_4206 | - | |
| cisco | ncs_4216 | - | |
| cisco | ncs_5001 | - | |
| cisco | ncs_5002 | - | |
| cisco | ncs_5011 | - | |
| cisco | ncs_540 | - | |
| cisco | ncs_5500 | - | |
| cisco | ncs_5501 | - | |
| cisco | ncs_5501 | se | |
| cisco | ncs_5502 | - | |
| cisco | ncs_5502 | se | |
| cisco | ncs_5504 | - | |
| cisco | ncs_5508 | - | |
| cisco | ncs_5516 | - | |
| cisco | ncs_560 | - | |
| cisco | ncs_560-4 | - | |
| cisco | ncs_560-7 | - | |
| cisco | ncs_57b1-5dse-sys | - | |
| cisco | ncs_57b1-6d24-sys | - | |
| cisco | ncs_57c1-48q6-sys | - | |
| cisco | ncs_57c3-mod-sys | - | |
| cisco | ncs_57c3-mods-sys | - |
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the iPXE boot function of Cisco IOS XR software could allow an authenticated, local attacker to install an unverified software image on an affected device.\r\n\r This vulnerability is due to insufficient image verification. An attacker could exploit this vulnerability by manipulating the boot parameters for image verification during the iPXE boot process on an affected device. A successful exploit could allow the attacker to boot an unverified software image on the affected device."
},
{
"lang": "es",
"value": "Una vulnerabilidad en la funci\u00f3n de arranque iPXE del software Cisco IOS XR podr\u00eda permitir que un atacante local autenticado instale una imagen de software no verificada en un dispositivo afectado. Esta vulnerabilidad se debe a una verificaci\u00f3n de imagen insuficiente. Un atacante podr\u00eda aprovechar esta vulnerabilidad manipulando los par\u00e1metros de arranque para la verificaci\u00f3n de im\u00e1genes durante el proceso de arranque iPXE en un dispositivo afectado. Una explotaci\u00f3n exitosa podr\u00eda permitir al atacante iniciar una imagen de software no verificada en el dispositivo afectado."
}
],
"id": "CVE-2023-20236",
"lastModified": "2024-11-21T07:40:57.700",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.7,
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{
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"references": [
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],
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-ipxe-sigbypass-pymfyqgB"
},
{
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],
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"weaknesses": [
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],
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]
}
Vulnerability from fkie_nvd
Published
2020-09-23 01:15
Modified
2024-11-21 04:29
Severity ?
Summary
Multiple vulnerabilities in the implementation of Border Gateway Protocol (BGP) Ethernet VPN (EVPN) functionality in Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerabilities are due to incorrect processing of BGP update messages that contain crafted EVPN attributes. An attacker could exploit these vulnerabilities by sending BGP EVPN update messages with malformed attributes to be processed by an affected system. A successful exploit could allow the attacker to cause the BGP process to restart unexpectedly, resulting in a DoS condition. The Cisco implementation of BGP accepts incoming BGP traffic only from explicitly defined peers. To exploit these vulnerabilities, the malicious BGP update message would need to come from a configured, valid BGP peer, or would need to be injected by the attacker into the victim's BGP network on an existing, valid TCP connection to a BGP peer.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| cisco | ios_xr | 6.6.1 | |
| cisco | asr_9000 | - | |
| cisco | asr_9010 | - | |
| cisco | asr_9904 | - | |
| cisco | asr_9910 | - | |
| cisco | asr_9912 | - | |
| cisco | asr_9922 | - | |
| cisco | ncs_540 | - | |
| cisco | ncs_5500 | - | |
| cisco | ncs_6000 | - | |
| cisco | ios_xr | 6.6.2 | |
| cisco | asr_9000 | - | |
| cisco | asr_9000 | - | |
| cisco | asr_9010 | - | |
| cisco | asr_9010 | - | |
| cisco | asr_9904 | - | |
| cisco | asr_9904 | - | |
| cisco | asr_9910 | - | |
| cisco | asr_9910 | - | |
| cisco | asr_9912 | - | |
| cisco | asr_9912 | - | |
| cisco | asr_9922 | - | |
| cisco | asr_9922 | - | |
| cisco | carrier_routing_system | - | |
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| cisco | ios_xr | 6.6.25 | |
| cisco | ncs_540 | - | |
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| cisco | ncs_5500 | - | |
| cisco | ncs_560 | - | |
| cisco | ios_xr | 7.0.1 | |
| cisco | asr_9000 | - | |
| cisco | asr_9010 | - | |
| cisco | asr_9904 | - | |
| cisco | asr_9910 | - | |
| cisco | asr_9912 | - | |
| cisco | asr_9922 | - | |
| cisco | ios_xrv_9000 | - | |
| cisco | ncs_1001 | - | |
| cisco | ncs_1002 | - | |
| cisco | ncs_1004 | - | |
| cisco | ncs_5001 | - | |
| cisco | ncs_5002 | - | |
| cisco | ncs_5011 | - | |
| cisco | ncs_540 | - | |
| cisco | ncs_540l | - | |
| cisco | ncs_5500 | - | |
| cisco | ncs_560 | - | |
| cisco | ncs_6000 | - |
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cve-2019-16027
Vulnerability from cvelistv5
Published
2020-01-26 04:31
Modified
2024-11-15 17:46
Severity ?
EPSS score ?
Summary
A vulnerability in the implementation of the Intermediate System–to–Intermediate System (IS–IS) routing protocol functionality in Cisco IOS XR Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition in the IS–IS process. The vulnerability is due to improper handling of a Simple Network Management Protocol (SNMP) request for specific Object Identifiers (OIDs) by the IS–IS process. An attacker could exploit this vulnerability by sending a crafted SNMP request to the affected device. A successful exploit could allow the attacker to cause a DoS condition in the IS–IS process.
References
| ▼ | URL | Tags |
|---|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200122-ios-xr-dos | vendor-advisory, x_refsource_CISCO |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Cisco | Cisco IOS XR Software |
Version: unspecified < n/a |
|
|
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cve-2019-16021
Vulnerability from cvelistv5
Published
2020-09-23 00:26
Modified
2024-11-13 18:04
Severity ?
EPSS score ?
Summary
Multiple vulnerabilities in the implementation of Border Gateway Protocol (BGP) Ethernet VPN (EVPN) functionality in Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerabilities are due to incorrect processing of BGP update messages that contain crafted EVPN attributes. An attacker could exploit these vulnerabilities by sending BGP EVPN update messages with malformed attributes to be processed by an affected system. A successful exploit could allow the attacker to cause the BGP process to restart unexpectedly, resulting in a DoS condition. The Cisco implementation of BGP accepts incoming BGP traffic only from explicitly defined peers. To exploit these vulnerabilities, the malicious BGP update message would need to come from a configured, valid BGP peer, or would need to be injected by the attacker into the victim's BGP network on an existing, valid TCP connection to a BGP peer.
References
| ▼ | URL | Tags |
|---|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200122-ios-xr-evpn | vendor-advisory, x_refsource_CISCO |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Cisco | Cisco IOS XR Software |
Version: n/a |
|
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cve-2023-20236
Vulnerability from cvelistv5
Published
2023-09-13 16:39
Modified
2024-10-23 19:10
Severity ?
EPSS score ?
Summary
A vulnerability in the iPXE boot function of Cisco IOS XR software could allow an authenticated, local attacker to install an unverified software image on an affected device.
This vulnerability is due to insufficient image verification. An attacker could exploit this vulnerability by manipulating the boot parameters for image verification during the iPXE boot process on an affected device. A successful exploit could allow the attacker to boot an unverified software image on the affected device.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Cisco | Cisco IOS XR Software |
Version: 5.2.0 Version: 5.2.1 Version: 5.2.2 Version: 5.2.4 Version: 5.2.3 Version: 5.2.5 Version: 5.2.47 Version: 5.3.0 Version: 5.3.1 Version: 5.3.2 Version: 5.3.3 Version: 5.3.4 Version: 6.0.0 Version: 6.0.1 Version: 6.0.2 Version: 6.1.1 Version: 6.1.2 Version: 6.1.3 Version: 6.1.4 Version: 6.1.12 Version: 6.1.22 Version: 6.1.32 Version: 6.1.36 Version: 6.1.42 Version: 6.2.1 Version: 6.2.2 Version: 6.2.3 Version: 6.2.25 Version: 6.2.11 Version: 6.3.2 Version: 6.3.3 Version: 6.3.15 Version: 6.4.1 Version: 6.4.2 Version: 6.4.3 Version: 6.5.1 Version: 6.5.2 Version: 6.5.3 Version: 6.5.25 Version: 6.5.26 Version: 6.5.28 Version: 6.5.29 Version: 6.5.32 Version: 6.5.33 Version: 6.6.2 Version: 6.6.3 Version: 6.6.25 Version: 6.6.4 Version: 7.0.1 Version: 7.0.2 Version: 7.0.12 Version: 7.0.14 Version: 7.1.1 Version: 7.1.15 Version: 7.1.2 Version: 7.1.3 Version: 6.7.1 Version: 6.7.2 Version: 6.7.3 Version: 6.7.4 Version: 7.2.0 Version: 7.2.1 Version: 7.2.2 Version: 7.3.1 Version: 7.3.15 Version: 7.3.2 Version: 7.3.3 Version: 7.3.5 Version: 7.4.1 Version: 7.4.2 Version: 6.8.1 Version: 6.8.2 Version: 7.5.1 Version: 7.5.3 Version: 7.5.2 Version: 7.5.4 Version: 7.6.1 Version: 7.6.2 Version: 7.7.1 Version: 7.7.2 Version: 7.7.21 Version: 6.9.1 Version: 6.9.2 Version: 7.8.1 Version: 7.8.2 Version: 7.9.1 Version: 7.9.2 |
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cve-2019-16023
Vulnerability from cvelistv5
Published
2020-09-23 00:26
Modified
2024-11-13 18:04
Severity ?
EPSS score ?
Summary
Multiple vulnerabilities in the implementation of Border Gateway Protocol (BGP) Ethernet VPN (EVPN) functionality in Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerabilities are due to incorrect processing of BGP update messages that contain crafted EVPN attributes. An attacker could exploit these vulnerabilities by sending BGP EVPN update messages with malformed attributes to be processed by an affected system. A successful exploit could allow the attacker to cause the BGP process to restart unexpectedly, resulting in a DoS condition. The Cisco implementation of BGP accepts incoming BGP traffic only from explicitly defined peers. To exploit these vulnerabilities, the malicious BGP update message would need to come from a configured, valid BGP peer, or would need to be injected by the attacker into the victim's BGP network on an existing, valid TCP connection to a BGP peer.
References
| ▼ | URL | Tags |
|---|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200122-ios-xr-evpn | vendor-advisory, x_refsource_CISCO |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Cisco | Cisco IOS XR Software |
Version: n/a |
|
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cve-2019-16019
Vulnerability from cvelistv5
Published
2020-09-23 00:26
Modified
2024-11-13 18:04
Severity ?
EPSS score ?
Summary
Multiple vulnerabilities in the implementation of Border Gateway Protocol (BGP) Ethernet VPN (EVPN) functionality in Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerabilities are due to incorrect processing of BGP update messages that contain crafted EVPN attributes. An attacker could exploit these vulnerabilities by sending BGP EVPN update messages with malformed attributes to be processed by an affected system. A successful exploit could allow the attacker to cause the BGP process to restart unexpectedly, resulting in a DoS condition. The Cisco implementation of BGP accepts incoming BGP traffic only from explicitly defined peers. To exploit these vulnerabilities, the malicious BGP update message would need to come from a configured, valid BGP peer, or would need to be injected by the attacker into the victim's BGP network on an existing, valid TCP connection to a BGP peer.
References
| ▼ | URL | Tags |
|---|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200122-ios-xr-evpn | vendor-advisory, x_refsource_CISCO |
Impacted products
| Vendor | Product | Version | |
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| ▼ | Cisco | Cisco IOS XR Software |
Version: n/a |
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