A vulnerability in the Flexible NetFlow Version 9 packet processor of Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper validation of parameters in a Flexible NetFlow Version 9 record. An attacker could exploit this vulnerability by sending a malformed Flexible NetFlow Version 9 packet to the Control and Provisioning of Wireless Access Points (CAPWAP) data port of an affected device. An exploit could allow the attacker to trigger an infinite loop, resulting in a process crash that would cause a reload of the device.
References
Link | Resource |
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https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-fnfv9-dos-HND6Fc9u | Patch Vendor Advisory |
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-fnfv9-dos-HND6Fc9u | Patch Vendor Advisory |
Configurations
Configuration 1 (hide)
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History
21 Nov 2024, 05:30
Type | Values Removed | Values Added |
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References | () https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-fnfv9-dos-HND6Fc9u - Patch, Vendor Advisory |
Information
Published : 2020-06-03 18:15
Updated : 2024-11-21 05:30
NVD link : CVE-2020-3221
Mitre link : CVE-2020-3221
CVE.ORG link : CVE-2020-3221
JSON object : View
Products Affected
cisco
- catalyst_9800-l
- catalyst_9800-40
- catalyst_9800-cl
- catalyst_9800-l-f
- catalyst_9800-l-c
- catalyst_9800-80
- ios_xe
CWE
CWE-20
Improper Input Validation