Cisco IOS XR Software Internet Key Exchange Version 2 Denial of Service Vulnerability

7.5 CVSS

Vulnerability Description

A vulnerability in the Internet Key Exchange version 2 (IKEv2) function of Cisco IOS XR Software could allow an unauthenticated, remote attacker to prevent an affected device from processing any control plane UDP packets.  This vulnerability is due to improper handling of malformed IKEv2 packets. An attacker could exploit this vulnerability by sending malformed IKEv2 packets to an affected device. A successful exploit could allow the attacker to prevent the affected device from processing any control plane UDP packets, resulting in a denial of service (DoS) condition. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Cisco

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Affected Software

Cisco IOS XR Software

Vulnerable Versions:

6.5.3, 6.6.1, 6.5.2, 6.6.2, 6.5.1, 7.0.1, 6.6.25, 7.0.0, 7.1.1, 6.6.3, 7.0.2, 7.2.0, 7.1.2, 7.2.1, 7.3.1, 7.4.1, 7.2.2, 7.3.2, 7.5.1, 7.3.27, 7.6.1, 7.5.2, 7.7.1, 7.4.2, 7.6.2, 7.8.1, 7.7.2, 7.9.1, 7.8.2, 7.8.22, 7.10.1, 7.7.21, 7.9.2, 7.11.1, 7.10.2, 24.1.1, 7.11.2, 24.2.1, 24.1.2, 24.2.11