Cisco NX-OS Software denial of service | CVE-2022-20823
NAME
Cisco NX-OS Software denial of service
- Platforms Affected:
Cisco Nexus 3000 Series Switches
Cisco Nexus 6000 Series Switches
Cisco Nexus 7000 Series Switches
Cisco Nexus 5500 Platform Switches
Cisco Nexus 5600 Platform Switches
Cisco NX-OS Software
Cisco Nexus 9000 Series Switches in standalone NX-OS mode
Cisco Nexus 9000 Series Fabric Switches in ACI mode - Risk Level:
8.6 - Exploitability:
Unproven - Consequences:
Denial of Service
DESCRIPTION
Cisco NX-OS Software is vulnerable to a denial of service, caused by improper input validation of specific OSPFv3 packets. By sending a specially-crafted OSPFv3 link-state advertisement (LSA), a remote attacker could exploit this vulnerability to cause the OSPFv3 process to crash and restart multiple times.
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-ospfv3-dos-48qutcu for patch, upgrade or suggested workaround information. See References.
- Reference Link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-ospfv3-dos-48qutcu - Reference Link:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-20823
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