Description
A vulnerability in the Link Layer Discovery Protocol (LLDP) subsystem of Cisco Nexus 9000 Series Application Centric Infrastructure (ACI) Mode Switch Software could allow an adjacent, unauthenticated attacker to cause a denial of service (DoS) condition or execute arbitrary code with root privileges. The vulnerability is due to improper input validation of certain type, length, value (TLV) fields of the LLDP frame header. An attacker could exploit this vulnerability by sending a crafted LLDP packet to the targeted device. A successful exploit may lead to a buffer overflow condition that could either cause a DoS condition or allow the attacker to execute arbitrary code with root privileges. Note: This vulnerability cannot be exploited by transit traffic through the device; the crafted packet must be targeted to a directly connected interface. This vulnerability affects Cisco Nexus 9000 Series Fabric Switches in ACI mode if they are running a Cisco Nexus 9000 Series ACI Mode Switch Software release prior to 13.2(7f) or any 14.x release.
Published: 2019-07-31
Score: 8.8 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-2019-10458 A vulnerability in the Link Layer Discovery Protocol (LLDP) subsystem of Cisco Nexus 9000 Series Application Centric Infrastructure (ACI) Mode Switch Software could allow an adjacent, unauthenticated attacker to cause a denial of service (DoS) condition or execute arbitrary code with root privileges. The vulnerability is due to improper input validation of certain type, length, value (TLV) fields of the LLDP frame header. An attacker could exploit this vulnerability by sending a crafted LLDP packet to the targeted device. A successful exploit may lead to a buffer overflow condition that could either cause a DoS condition or allow the attacker to execute arbitrary code with root privileges. Note: This vulnerability cannot be exploited by transit traffic through the device; the crafted packet must be targeted to a directly connected interface. This vulnerability affects Cisco Nexus 9000 Series Fabric Switches in ACI mode if they are running a Cisco Nexus 9000 Series ACI Mode Switch Software release prior to 13.2(7f) or any 14.x release.
History

Thu, 21 Nov 2024 08:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Subscriptions

Cisco Nexus 93108tc-ex Nexus 93108tc-fx Nexus 93120tx Nexus 93128tx Nexus 93180lc-ex Nexus 93180yc-ex Nexus 93180yc-fx Nexus 93240yc-fx2 Nexus 9332c Nexus 9332pq Nexus 9336c-fx2 Nexus 9336pq Nexus 9348gc-fxp Nexus 9364c Nexus 9372px Nexus 9372px-e Nexus 9372tx Nexus 9372tx-e Nexus 9396px Nexus 9396tx Nexus 9504 Nexus 9508 Nexus 9516 Nx-os
cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2024-11-20T17:15:07.100Z

Reserved: 2018-12-06T00:00:00.000Z

Link: CVE-2019-1901

cve-icon Vulnrichment

Updated: 2024-08-04T18:35:52.433Z

cve-icon NVD

Status : Modified

Published: 2019-07-31T18:15:11.050

Modified: 2024-11-21T04:37:39.023

Link: CVE-2019-1901

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses