A vulnerability in the MPLS Operation, Administration, and Maintenance (OAM) feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper input validation when an affected device is processing an MPLS echo-request or echo-reply packet. An attacker could exploit this vulnerability by sending malicious MPLS echo-request or echo-reply packets to an interface that is enabled for MPLS forwarding on the affected device. A successful exploit could allow the attacker to cause the MPLS OAM process to crash and restart multiple times, causing the affected device to reload and resulting in a DoS condition.
References
Link | Resource |
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https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-mpls-oam-dos-sGO9x5GM | Patch Vendor Advisory |
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-mpls-oam-dos-sGO9x5GM | Patch Vendor Advisory |
Configurations
Configuration 1 (hide)
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History
21 Nov 2024, 05:44
Type | Values Removed | Values Added |
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References | () https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-mpls-oam-dos-sGO9x5GM - Patch, Vendor Advisory |
Information
Published : 2021-08-25 20:15
Updated : 2024-11-21 05:44
NVD link : CVE-2021-1588
Mitre link : CVE-2021-1588
CVE.ORG link : CVE-2021-1588
JSON object : View
Products Affected
cisco
- nexus_92348gc-x
- nexus_3172pq\/pq-xl
- nexus_9236c
- nexus_3464c
- nexus_9508
- nexus_3232c
- nexus_9336c-fx2-e
- nexus_9396px
- nexus_9372tx-e
- nexus_3524-x\/xl
- nexus_9364c
- nexus_93108tc-ex
- nexus_3264q
- nexus_3432d-s
- nexus_93360yc-fx2
- nexus_31108pc-v
- nexus_7000_18-slot
- nexus_31108tc-v
- nexus_31128pq
- nexus_93180yc-fx
- nexus_93180yc-fx3
- nexus_9348gc-fxp
- nexus_7000_4-slot
- nexus_3132c-z
- nexus_3264c-e
- nexus_7000_9-slot
- nexus_93180yc-fx-24
- nexus_92300yc
- nexus_93240yc-fx2
- nexus_7000_10-slot
- nexus_9372tx
- nexus_34180yc
- nexus_93108tc-ex-24
- nexus_9000v
- nexus_93180yc-ex-24
- nexus_93216tc-fx2
- nexus_3000
- nexus_9372px
- nexus_36180yc-r
- nexus_3636c-r
- nexus_9332c
- nexus_93108tc-fx
- nexus_9332pq
- nexus_9272q
- nexus_3172tq-xl
- nexus_3164q
- nexus_93120tx
- nexus_3132q-x\/3132q-xl
- nexus_93180yc-ex
- nexus_93108tc-fx3p
- nexus_9364c-gx
- nexus_9372px-e
- nexus_93180yc-fx3s
- nexus_93108tc-fx-24
- nexus_92160yc-x
- nexus_93128tx
- nexus_9336c-fx2
- nexus_9316d-gx
- nexus_93600cd-gx
- nexus_3132q-v
- nexus_9396tx
- nexus_93180lc-ex
- nx-os
- nexus_3408-s
- nexus_3048
- nexus_92304qc
- nexus_3548-x\/xl