CVE-2021-1587

Summary

CVECVE-2021-1587
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-08-25 20:15:00 UTC
Updated2023-11-07 03:28:00 UTC
DescriptionA vulnerability in the VXLAN Operation, Administration, and Maintenance (OAM) feature of Cisco NX-OS Software, known as NGOAM, could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling of specific packets with a Transparent Interconnection of Lots of Links (TRILL) OAM EtherType. An attacker could exploit this vulnerability by sending crafted packets, including the TRILL OAM EtherType of 0x8902, to a device that is part of a VXLAN Ethernet VPN (EVPN) fabric. A successful exploit could allow the attacker to cause an affected device to experience high CPU usage and consume excessive system resources, which may result in overall control plane instability and cause the affected device to reload. Note: The NGOAM feature is disabled by default.

Risk And Classification

Problem Types: CWE-436

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Cisco Nexus 3000 - All All All
Hardware Cisco Nexus 3048 - All All All
Hardware Cisco Nexus 31108pc-v - All All All
Hardware Cisco Nexus 31108tc-v - All All All
Hardware Cisco Nexus 31128pq - All All All
Hardware Cisco Nexus 3132c-z - All All All
Hardware Cisco Nexus 3132q-v - All All All
Hardware Cisco Nexus 3132q-x/3132q-xl - All All All
Hardware Cisco Nexus 3164q - All All All
Hardware Cisco Nexus 3172pq/pq-xl - All All All
Hardware Cisco Nexus 3172tq-xl - All All All
Hardware Cisco Nexus 3232c - All All All
Hardware Cisco Nexus 3264c-e - All All All
Hardware Cisco Nexus 3264q - All All All
Hardware Cisco Nexus 3408-s - All All All
Hardware Cisco Nexus 34180yc - All All All
Hardware Cisco Nexus 3432d-s - All All All
Hardware Cisco Nexus 3464c - All All All
Hardware Cisco Nexus 3524-x/xl - All All All
Hardware Cisco Nexus 3548-x/xl - All All All
Hardware Cisco Nexus 36180yc-r - All All All
Hardware Cisco Nexus 3636c-r - All All All
Hardware Cisco Nexus 9000v - All All All
Hardware Cisco Nexus 92160yc-x - All All All
Hardware Cisco Nexus 92300yc - All All All
Hardware Cisco Nexus 92304qc - All All All
Hardware Cisco Nexus 92348gc-x - All All All
Hardware Cisco Nexus 9236c - All All All
Hardware Cisco Nexus 9272q - All All All
Hardware Cisco Nexus 93108tc-ex - All All All
Hardware Cisco Nexus 93108tc-ex-24 - All All All
Hardware Cisco Nexus 93108tc-fx - All All All
Hardware Cisco Nexus 93108tc-fx-24 - All All All
Hardware Cisco Nexus 93108tc-fx3p - All All All
Hardware Cisco Nexus 93120tx - All All All
Hardware Cisco Nexus 93128tx - All All All
Hardware Cisco Nexus 9316d-gx - All All All
Hardware Cisco Nexus 93180lc-ex - All All All
Hardware Cisco Nexus 93180yc-ex - All All All
Hardware Cisco Nexus 93180yc-ex-24 - All All All
Hardware Cisco Nexus 93180yc-fx - All All All
Hardware Cisco Nexus 93180yc-fx-24 - All All All
Hardware Cisco Nexus 93180yc-fx3 - All All All
Hardware Cisco Nexus 93180yc-fx3s - All All All
Hardware Cisco Nexus 93216tc-fx2 - All All All
Hardware Cisco Nexus 93240yc-fx2 - All All All
Hardware Cisco Nexus 9332c - All All All
Hardware Cisco Nexus 9332pq - All All All
Hardware Cisco Nexus 93360yc-fx2 - All All All
Hardware Cisco Nexus 9336c-fx2 - All All All
Hardware Cisco Nexus 9336c-fx2-e - All All All
Hardware Cisco Nexus 9348gc-fxp - All All All
Hardware Cisco Nexus 93600cd-gx - All All All
Hardware Cisco Nexus 9364c - All All All
Hardware Cisco Nexus 9364c-gx - All All All
Hardware Cisco Nexus 9372px - All All All
Hardware Cisco Nexus 9372px-e - All All All
Hardware Cisco Nexus 9372tx - All All All
Hardware Cisco Nexus 9372tx-e - All All All
Hardware Cisco Nexus 9396px - All All All
Hardware Cisco Nexus 9396tx - All All All
Hardware Cisco Nexus 9508 - All All All
Operating System Cisco Nx-os - All All All

References

ReferenceSourceLinkTags
Cisco NX-OS Software VXLAN OAM (NGOAM) Denial of Service Vulnerability CISCO tools.cisco.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 317015 Cisco NX-OS Software VXLAN OAM (NGOAM) Denial of Service Vulnerability (cisco-sa-nxos-ngoam-dos-LTDb9Hv)
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