Cisco IOS XR Software denial of service | CVE-2023-20233
NAME
__________
Cisco IOS XR Software denial of service
Platforms Affected:
Cisco IOS XR 7.4
Cisco IOS XR 7.5
Cisco IOS XR software 7.9
Cisco IOS XR 7.6
Cisco IOS XR 7.7
Cisco IOS XR 7.8
Risk Level:
4.3
Exploitability:
Unproven
Consequences:
Denial of Service
DESCRIPTION
__________
Cisco IOS XR Software is vulnerable to a denial of service, caused by incorrect processing of invalid continuity check messages (CCMs) in the Connectivity Fault Management (CFM) feature. By sending specially crafted CCMs, a remote attacker could exploit this vulnerability to cause the CFM service to crash when a user displays information about maintenance end points (MEPs) for peer MEPs on an affected device.
CVSS 3.0 Information
__________
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged
Access Vector:
Network
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