CVE-2020-3479

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Summary

CVECVE-2020-3479
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-09-24 18:15:00 UTC
Updated2023-11-07 03:22:00 UTC
DescriptionA vulnerability in the implementation of Multiprotocol Border Gateway Protocol (MP-BGP) for the Layer 2 VPN (L2VPN) Ethernet VPN (EVPN) address family in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to incorrect processing of Border Gateway Protocol (BGP) update messages that contain crafted EVPN attributes. An attacker could exploit this vulnerability by sending BGP update messages with specific, malformed attributes to an affected device. A successful exploit could allow the attacker to cause an affected device to crash, resulting in a DoS condition.

Risk And Classification

Problem Types: CWE-400

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Cisco 1100 Integrated Services Router - All All All
Hardware Cisco 1100 Integrated Services Router - All All All
Hardware Cisco 1101 Integrated Services Router - All All All
Hardware Cisco 1109 Integrated Services Router - All All All
Hardware Cisco 1111x Integrated Services Router - All All All
Hardware Cisco 111x Integrated Services Router - All All All
Hardware Cisco 1120 Integrated Services Router - All All All
Hardware Cisco 1160 Integrated Services Router - All All All
Hardware Cisco 4221 Integrated Services Router - All All All
Hardware Cisco 4221 Integrated Services Router - All All All
Hardware Cisco 4321 Integrated Services Router - All All All
Hardware Cisco 4321 Integrated Services Router - All All All
Hardware Cisco 4331 Integrated Services Router - All All All
Hardware Cisco 4331 Integrated Services Router - All All All
Hardware Cisco 4351 Integrated Services Router - All All All
Hardware Cisco 4351 Integrated Services Router - All All All
Hardware Cisco 4431 Integrated Services Router - All All All
Hardware Cisco 4431 Integrated Services Router - All All All
Hardware Cisco 4451-x Integrated Services Router - All All All
Hardware Cisco 4451-x Integrated Services Router - All All All
Hardware Cisco 4461 Integrated Services Router - All All All
Hardware Cisco 4461 Integrated Services Router - All All All
Hardware Cisco Asr 1001-hx - All All All
Hardware Cisco Asr 1001-hx Router - All All All
Hardware Cisco Asr 1001-hx Router - All All All
Hardware Cisco Asr 1001-x - All All All
Hardware Cisco Asr 1001-x Router - All All All
Hardware Cisco Asr 1001-x Router - All All All
Hardware Cisco Asr 1002-hx - All All All
Hardware Cisco Asr 1002-hx Router - All All All
Hardware Cisco Asr 1002-hx Router - All All All
Hardware Cisco Asr 1002-x - All All All
Hardware Cisco Asr 1002-x Router - All All All
Hardware Cisco Asr 1002-x Router - All All All
Hardware Cisco Asr 1004 - All All All
Hardware Cisco Asr 1004 Router - All All All
Hardware Cisco Asr 1004 Router - All All All
Hardware Cisco Asr 1006 - All All All
Hardware Cisco Asr 1006-x - All All All
Hardware Cisco Asr 1006-x Router - All All All
Hardware Cisco Asr 1006-x Router - All All All
Hardware Cisco Asr 1006 Router - All All All
Hardware Cisco Asr 1006 Router - All All All
Hardware Cisco Asr 1009-x - All All All
Hardware Cisco Asr 1009-x Router - All All All
Hardware Cisco Asr 1009-x Router - All All All
Hardware Cisco Asr 1013 - All All All
Hardware Cisco Asr 1013 Router - All All All
Hardware Cisco Asr 1013 Router - All All All
Hardware Cisco Cloud Services Router 1000v - All All All
Hardware Cisco Cloud Services Router 1000v - All All All
Operating System Cisco Ios - All All All
Operating System Cisco Ios - All All All
Operating System Cisco Ios Xe - All All All
Operating System Cisco Ios Xe - All All All
Hardware Cisco Isr 1100 - All All All
Hardware Cisco Isr 1100 Router - All All All
Hardware Cisco Isr 1100 Router - All All All
Hardware Cisco Isr 1101 - All All All
Hardware Cisco Isr 1101 Router - All All All
Hardware Cisco Isr 1101 Router - All All All
Hardware Cisco Isr 1109 - All All All
Hardware Cisco Isr 1109 Router - All All All
Hardware Cisco Isr 1109 Router - All All All
Hardware Cisco Isr 1111x - All All All
Hardware Cisco Isr 1111x Router - All All All
Hardware Cisco Isr 1111x Router - All All All
Hardware Cisco Isr 111x - All All All
Hardware Cisco Isr 111x Router - All All All
Hardware Cisco Isr 111x Router - All All All
Hardware Cisco Isr 1120 - All All All
Hardware Cisco Isr 1120 Router - All All All
Hardware Cisco Isr 1120 Router - All All All
Hardware Cisco Isr 1160 - All All All
Hardware Cisco Isr 1160 Router - All All All
Hardware Cisco Isr 1160 Router - All All All

References

ReferenceSourceLinkTags
Cisco IOS and IOS XE Software MP-BGP EVPN Denial of Service Vulnerability CISCO tools.cisco.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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