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Cisco IOS Software Internet Key Exchange Version 1 Fragmentation Denial of Service Vulnerability

Information

Severity

Severity

High

Family

Family

CISCO

CVSSv2 Base

CVSSv2 Base

7.1

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:N/A:C

Solution Type

Solution Type

Vendor Patch

Created

Created

6 years ago

Modified

Modified

4 years ago

Summary

A vulnerability in the Internet Key Exchange version 1 (IKEv1) fragmentation code of Cisco IOS Software could allow an unauthenticated, remote attacker to cause an exhaustion of available memory or a reload of the affected system.

Insight

Insight

The vulnerability is due to the improper handling of crafted, fragmented IKEv1 packets. An attacker could exploit this vulnerability by sending crafted UDP packets to the affected system.

Detection Method

Detection Method

Checks if a vulnerable version is present on the target host.

Solution

Solution

See the referenced vendor advisory for a solution.

Common Vulnerabilities and Exposures (CVE)