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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
7 years ago
Modified
Modified
5 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.