CVE-2011-4023
First published: Thu May 03 2012(Updated: )
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.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco NX-OS | =5.0 | |
| Cisco NX-OS | =5.0\(2\) | |
| Cisco NX-OS | =5.0\(2\)n1\(1\) | |
| Cisco NX-OS | =5.0\(2\)n2\(1\) | |
| Cisco NX-OS | =5.0\(2\)n2\(1a\) | |
| Cisco NX-OS | =5.0\(2a\) | |
| Cisco NX-OS | =5.0\(3\) | |
| Cisco NX-OS | =5.0\(3\)n1\(1\) | |
| Cisco NX-OS | =5.0\(3\)n1\(1a\) | |
| Cisco NX-OS | =5.0\(3\)n1\(1b\) | |
| Cisco NX-OS | =5.0\(3\)n1\(1c\) | |
| Cisco NX-OS | =5.0\(3\)n2\(1\) | |
| Cisco NX-OS | =5.0\(3\)n2\(2\) | |
| Cisco NX-OS | =5.0\(3\)n2\(2a\) | |
| Cisco NX-OS | =5.0\(3\)n2\(2b\) | |
| Cisco NX-OS | =5.0\(5\) | |
| Cisco Nexus 2148T FEX Switch | ||
| Cisco Nexus 2224TP FEX Switch | ||
| Cisco Nexus 2232PP FEX Switch | ||
| Cisco Nexus 2232TM FEX Switch | ||
| Cisco Nexus 2248TP FEX Switch | ||
| Cisco Nexus 2248TP-E FEX Switch | ||
| Cisco Nexus 5010 | ||
| Cisco Nexus 5020p Switch | ||
| Cisco Nexus 5548P Firmware | ||
| Cisco Nexus 5548UP Firmware | ||
| Cisco Nexus 5596UP Firmware |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2011-4023?
CVE-2011-4023 is classified as a medium severity vulnerability due to its potential to cause a denial of service.
How do I fix CVE-2011-4023?
To mitigate CVE-2011-4023, Cisco recommends upgrading to a fixed version of NX-OS that addresses the memory leak issue.
Who is affected by CVE-2011-4023?
CVE-2011-4023 affects remote authenticated users of Cisco NX-OS 5.0 on various Nexus switch models.
What type of attacks can CVE-2011-4023 facilitate?
CVE-2011-4023 can facilitate denial of service attacks by causing excessive memory consumption through SNMP requests.
What is the cause of CVE-2011-4023?
CVE-2011-4023 is caused by a memory leak in the libcmd component of Cisco NX-OS, which can be triggered via SNMP.
- collector/nvd-historical
- agent/type
- agent/weakness
- agent/severity
- agent/author
- agent/references
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/first-publish-date
- agent/event
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/cisco
- canonical/cisco nx-os
- version/cisco nx-os/5.0
- version/cisco nx-os/5.0\(2\)
- version/cisco nx-os/5.0\(2\)n1\(1\)
- version/cisco nx-os/5.0\(2\)n2\(1\)
- version/cisco nx-os/5.0\(2\)n2\(1a\)
- version/cisco nx-os/5.0\(2a\)
- version/cisco nx-os/5.0\(3\)
- version/cisco nx-os/5.0\(3\)n1\(1\)
- version/cisco nx-os/5.0\(3\)n1\(1a\)
- version/cisco nx-os/5.0\(3\)n1\(1b\)
- version/cisco nx-os/5.0\(3\)n1\(1c\)
- version/cisco nx-os/5.0\(3\)n2\(1\)
- version/cisco nx-os/5.0\(3\)n2\(2\)
- version/cisco nx-os/5.0\(3\)n2\(2a\)
- version/cisco nx-os/5.0\(3\)n2\(2b\)
- version/cisco nx-os/5.0\(5\)
- canonical/cisco nexus 2148t fex switch
- canonical/cisco nexus 2224tp fex switch
- canonical/cisco nexus 2232pp fex switch
- canonical/cisco nexus 2232tm fex switch
- canonical/cisco nexus 2248tp fex switch
- canonical/cisco nexus 2248tp-e fex switch
- canonical/cisco nexus 5010
- canonical/cisco nexus 5020p switch
- canonical/cisco nexus 5548p firmware
- canonical/cisco nexus 5548up firmware
- canonical/cisco nexus 5596up firmware