CVE-2020-3492

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Summary

CVECVE-2020-3492
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-09-24 18:15:00 UTC
Updated2021-10-19 18:44:00 UTC
DescriptionA vulnerability in the Flexible NetFlow Version 9 packet processor of Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers and Cisco AireOS Software for Cisco Wireless LAN Controllers (WLC) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient validation of certain parameters in a Flexible NetFlow Version 9 record. An attacker could exploit this vulnerability by spoofing the address of an existing Access Point on the network and sending a Control and Provisioning of Wireless Access Points (CAPWAP) packet that includes a crafted Flexible NetFlow Version 9 record to an affected device. A successful exploit could allow the attacker to cause a process crash that would lead to a reload of the device.

Risk And Classification

Problem Types: CWE-20

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Cisco Catalyst 9800-40 - All All All
Hardware Cisco Catalyst 9800-40 - All All All
Hardware Cisco Catalyst 9800-80 - All All All
Hardware Cisco Catalyst 9800-80 - All All All
Hardware Cisco Catalyst 9800-cl - All All All
Hardware Cisco Catalyst 9800-cl - All All All
Hardware Cisco Catalyst 9800-l - All All All
Hardware Cisco Catalyst 9800-l - All All All
Hardware Cisco Catalyst 9800-l-c - All All All
Hardware Cisco Catalyst 9800-l-c - All All All
Hardware Cisco Catalyst 9800-l-f - All All All
Hardware Cisco Catalyst 9800-l-f - All All All
Operating System Cisco Ios Xe 16.12.1 All All All
Operating System Cisco Ios Xe 16.12.1 All All All

References

ReferenceSourceLinkTags
Cisco IOS XE Software for Catalyst 9800 Series and Cisco AireOS Software for Cisco WLC Flexible NetFlow Version 9 Denial of Service Vulnerability CISCO tools.cisco.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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