CVE-2021-1587
8.6
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Exploitability: 3.9 / Impact: 4.0
Source: NVD
Description
A 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.
Affected (1)
Configuration A
| Vulnerable Software | Affected Versions |
|---|---|
| All versions |
| Running on/with | Platform Versions |
|---|---|
Cisco Nexus 3000 | All versions |
Cisco Nexus 3048 | All versions |
Cisco Nexus 31108pc V | All versions |
Cisco Nexus 31108tc V | All versions |
Cisco Nexus 31128pq | All versions |
Cisco Nexus 3132c Z | All versions |
Cisco Nexus 3132q V | All versions |
Cisco Nexus 3132q X/3132q Xl | All versions |
Cisco Nexus 3164q | All versions |
Cisco Nexus 3172pq/pq Xl | All versions |
Cisco Nexus 3172tq Xl | All versions |
Cisco Nexus 3232c | All versions |
Cisco Nexus 3264c E | All versions |
Cisco Nexus 3264q | All versions |
Cisco Nexus 3408 S | All versions |
Cisco Nexus 34180yc | All versions |
Cisco Nexus 3432d S | All versions |
Cisco Nexus 3464c | All versions |
Cisco Nexus 3524 X/xl | All versions |
Cisco Nexus 3548 X/xl | All versions |
Cisco Nexus 36180yc R | All versions |
Cisco Nexus 3636c R | All versions |
Cisco Nexus 9000v | All versions |
Cisco Nexus 92160yc X | All versions |
Cisco Nexus 92300yc | All versions |
Cisco Nexus 92304qc | All versions |
Cisco Nexus 92348gc X | All versions |
Cisco Nexus 9236c | All versions |
Cisco Nexus 9272q | All versions |
Cisco Nexus 93108tc Ex | All versions |
Cisco Nexus 93108tc Ex 24 | All versions |
Cisco Nexus 93108tc Fx | All versions |
Cisco Nexus 93108tc Fx 24 | All versions |
Cisco Nexus 93108tc Fx3p | All versions |
Cisco Nexus 93120tx | All versions |
Cisco Nexus 93128tx | All versions |
Cisco Nexus 9316d Gx | All versions |
Cisco Nexus 93180lc Ex | All versions |
Cisco Nexus 93180yc Ex | All versions |
Cisco Nexus 93180yc Ex 24 | All versions |
Cisco Nexus 93180yc Fx | All versions |
Cisco Nexus 93180yc Fx 24 | All versions |
Cisco Nexus 93180yc Fx3 | All versions |
Cisco Nexus 93180yc Fx3s | All versions |
Cisco Nexus 93216tc Fx2 | All versions |
Cisco Nexus 93240yc Fx2 | All versions |
Cisco Nexus 9332c | All versions |
Cisco Nexus 9332pq | All versions |
Cisco Nexus 93360yc Fx2 | All versions |
Cisco Nexus 9336c Fx2 | All versions |
Cisco Nexus 9336c Fx2 E | All versions |
Cisco Nexus 9348gc Fxp | All versions |
Cisco Nexus 93600cd Gx | All versions |
Cisco Nexus 9364c | All versions |
Cisco Nexus 9364c Gx | All versions |
Cisco Nexus 9372px | All versions |
Cisco Nexus 9372px E | All versions |
Cisco Nexus 9372tx | All versions |
Cisco Nexus 9372tx E | All versions |
Cisco Nexus 9396px | All versions |
Cisco Nexus 9396tx | All versions |
Cisco Nexus 9508 | All versions |
Related CWEs
CWE-115
Misinterpretation of Input
The product misinterprets an input, whether from an attacker or another product, in a security-relevant fashion.
CWE-436
Interpretation Conflict
Product A handles inputs or steps differently than Product B, which causes A to perform incorrect actions based on its perception of B's state.
References (2)
Source: psirt@cisco.com
PatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchVendor Advisory
Timeline
No history available yet.