Cisco Nexus 9000 Series Switches denial of service | CVE-2022-20623
NAME
Cisco Nexus 9000 Series Switches denial of service
- Platforms Affected:
Cisco NX-OS
Cisco Nexus 9000 Series Switches - Risk Level:
8.6 - Exploitability:
Unproven - Consequences:
Denial of Service
DESCRIPTION
Cisco NX-OS Software for Cisco Nexus 9000 Series Switches is vulnerable to a denial of service, caused by a logic error in the BFD rate limiter functionality. By sending a specially crafted stream of traffic through the device, a remote attacker could exploit this vulnerability to cause route instability and dropped traffic.
CVSS 3.0 Information
- Privileges Required: None
- User Interaction: None
- Scope: Changed
- Access Vector: Network
- Access Complexity: Low
- Confidentiality Impact: None
- Integrity Impact: None
- Availability Impact: High
- Remediation Level: Official Fix
MITIGATION
Refer to Cisco Security Advisory cisco-sa-nxos-bfd-dos-wGQXrzxn for patch, upgrade or suggested workaround information. See References.
- Reference Link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-bfd-dos-wGQXrzxn - Reference Link:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-20623
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