Description
A vulnerability in the network stack 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 exists because the software improperly releases resources when it processes certain IPv6 packets that are destined to an affected device. An attacker could exploit this vulnerability by sending multiple crafted IPv6 packets to an affected device. A successful exploit could cause the network stack to run out of available buffers, impairing operations of control plane and management plane protocols and resulting in a DoS condition. Manual intervention would be required to restore normal operations on the affected device. For more information about the impact of this vulnerability, see the Details section of this advisory.
Published: 2021-02-24
Score: 8.6 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2021-6854 A vulnerability in the network stack 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 exists because the software improperly releases resources when it processes certain IPv6 packets that are destined to an affected device. An attacker could exploit this vulnerability by sending multiple crafted IPv6 packets to an affected device. A successful exploit could cause the network stack to run out of available buffers, impairing operations of control plane and management plane protocols and resulting in a DoS condition. Manual intervention would be required to restore normal operations on the affected device. For more information about the impact of this vulnerability, see the Details section of this advisory.
History

Sat, 09 Nov 2024 00:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Subscriptions

Cisco Nexus 3016 Nexus 3016q Nexus 3048 Nexus 3064 Nexus 3064-32t Nexus 3064-t Nexus 3064-x Nexus 3064t Nexus 3064x Nexus 3100-v Nexus 3100-z Nexus 3100v Nexus 31108pc-v Nexus 31108pv-v Nexus 31108tc-v Nexus 31128pq Nexus 3132c-z Nexus 3132q Nexus 3132q-v Nexus 3132q-x Nexus 3132q-xl Nexus 3164q Nexus 3172 Nexus 3172pq Nexus 3172pq-xl Nexus 3172tq Nexus 3172tq-32t Nexus 3172tq-xl Nexus 3232c Nexus 3264c-e Nexus 3264q Nexus 3408-s Nexus 34180yc Nexus 34200yc-sm Nexus 3432d-s Nexus 3464c Nexus 3524 Nexus 3524-x Nexus 3524-xl Nexus 3548 Nexus 3548-x Nexus 3548-xl Nexus 36180yc-r Nexus 3636c-r Nexus 5548p Nexus 5548up Nexus 5596t Nexus 5596up Nexus 56128p Nexus 5624q Nexus 5648q Nexus 5672up Nexus 5672up-16g Nexus 5696q Nexus 6001 Nexus 6001p Nexus 6001t Nexus 6004 Nexus 6004x Nexus 7000 Nexus 7004 Nexus 7009 Nexus 7010 Nexus 7018 Nexus 7700 Nexus 7702 Nexus 7706 Nexus 7710 Nexus 7718 Nexus 9000v Nexus 92160yc-x Nexus 92160yc Switch Nexus 9221c Nexus 92300yc Nexus 92304qc Nexus 92348gc-x Nexus 9236c Nexus 9272q Nexus 93108tc-ex Nexus 93108tc-ex-24 Nexus 93108tc-fx Nexus 93108tc-fx-24 Nexus 93108tc-fx3p Nexus 93120tx Nexus 93128 Nexus 93128tx Nexus 9316d-gx Nexus 93180lc-ex Nexus 93180tc-ex Nexus 93180yc-ex Nexus 93180yc-ex-24 Nexus 93180yc-fx Nexus 93180yc-fx-24 Nexus 93180yc-fx3 Nexus 93180yc-fx3s Nexus 93216tc-fx2 Nexus 93240yc-fx2 Nexus 9332c Nexus 9332pq Nexus 93360yc-fx2 Nexus 9336c-fx2 Nexus 9336c-fx2-e Nexus 9336pq Nexus 9348gc-fxp Nexus 93600cd-gx Nexus 9364c Nexus 9364c-gx Nexus 9372px Nexus 9372px-e Nexus 9372tx Nexus 9372tx-e Nexus 9396px Nexus 9396tx Nexus 9500r Nexus 9504 Nexus 9508 Nexus 9516 Nx-os Ucs 64108 Ucs 6454 Unified Computing System
cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2024-11-08T23:37:33.797Z

Reserved: 2020-11-13T00:00:00.000Z

Link: CVE-2021-1387

cve-icon Vulnrichment

Updated: 2024-08-03T16:11:16.899Z

cve-icon NVD

Status : Modified

Published: 2021-02-24T20:15:13.567

Modified: 2024-11-21T05:44:14.203

Link: CVE-2021-1387

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses