Published: 19/12/2015 Updated: 07/12/2016

CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10

VMScore: 445

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

The IKEv1 state machine in Cisco IOS 15.4 up to and including 15.6 and IOS XE 3.15 up to and including 3.17 allows remote malicious users to cause a denial of service (IPsec connection termination) via a crafted IKEv1 packet to a tunnel endpoint, aka Bug ID CSCuw08236.

Vulnerable Product	Search on Vulmon	Subscribe to Product
cisco ios 15.5\\(2\\)t
cisco ios 15.5\\(3\\)m1
cisco ios 15.5\\(1\\)t
cisco ios 15.5\\(3\\)m
cisco ios 15.5\\(3\\)s
cisco ios 15.5\\(2\\)s
cisco ios 15.6\\(0.17\\)t
cisco ios 15.4\\(3\\)s
cisco ios 15.5\\(1\\)s
cisco ios 15.5\\(3\\)s1
cisco ios 15.6\\(1\\)t0a
cisco ios xe 3.16s.1
cisco ios xe 3.15s.2
cisco ios xe 3.17s.1
cisco ios xe 3.17s.0
cisco ios xe 3.16s.0
cisco ios xe 3.15s.1
cisco ios xe 3.15s.0

A vulnerability in the Internet Key Exchange (IKEv1) state machine of Cisco IOS and Cisco IOS XE Software could allow an unauthenticated, remote attacker to tear down valid IPsec connections, resulting in a partial denial of service (DoS) condition The vulnerability is due to insufficient condition checks in the IKEv1 state machine An attacker c ...

CWE-19 http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151218-ios http://www.securitytracker.com/id/1034505 https://nvd.nist.gov http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151218-ios

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CVE-2015-6429

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