Cisco NX-OS Allocation of Resources Without Limits or Throttling (CVE-2011-4023)

high Tenable OT Security Plugin ID 503154

Synopsis

The remote OT asset is affected by a vulnerability.

Description

Memory leak in libcmd in Cisco NX-OS 5.0 on Nexus switches allows remote authenticated users to cause a denial of service (memory consumption) via SNMP requests, aka Bug ID CSCtr65682.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

Refer to the vendor advisory.

Plugin Details

Severity: High

ID: 503154

Version: 1.1

Type: remote

Family: Tenable.ot

Published: 4/11/2025

Updated: 4/11/2025

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2011-4023

Vulnerability Information

CPE: cpe:/o:cisco:nx-os:5.0, cpe:/o:cisco:nx-os:5.0%285%29, cpe:/o:cisco:nx-os:5.0%282%29, cpe:/o:cisco:nx-os:5.0%282%29n2%281%29, cpe:/o:cisco:nx-os:5.0%282%29n2%281a%29, cpe:/o:cisco:nx-os:5.0%282a%29, cpe:/o:cisco:nx-os:5.0%283%29, cpe:/o:cisco:nx-os:5.0%283%29n1%281%29, cpe:/o:cisco:nx-os:5.0%283%29n1%281a%29, cpe:/o:cisco:nx-os:5.0%283%29n1%281b%29, cpe:/o:cisco:nx-os:5.0%283%29n1%281c%29, cpe:/o:cisco:nx-os:5.0%283%29n2%281%29, cpe:/o:cisco:nx-os:5.0%283%29n2%282%29, cpe:/o:cisco:nx-os:5.0%283%29n2%282a%29, cpe:/o:cisco:nx-os:5.0%283%29n2%282b%29, cpe:/o:cisco:nx-os:5.0%282%29n1%281%29

Required KB Items: Tenable.ot/Cisco

Exploit Ease: No known exploits are available

Patch Publication Date: 5/3/2012

Vulnerability Publication Date: 5/3/2012

Reference Information

CVE: CVE-2011-4023

CWE: 399

Detections

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