#VU11360 Data handling in Cisco IOS XE - CVE-2018-0154

Vulnerability identifier: #VU11360

Vulnerability risk: Medium

CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:A/U:Green

CVE-ID: CVE-2018-0154

CWE-ID: CWE-19

Exploitation vector: Remote access

Exploit availability: The vulnerability is being exploited in the wild

Vulnerable software:
Cisco IOS XE

Software vendor:
Cisco Systems, Inc

The vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.

The weakness exists in the crypto engine of the Cisco Integrated Services Module for VPN (ISM-VPN) due to insufficient handling of VPN traffic. A remote attacker can send specially crafted VPN traffic and cause the service to crash.

Update to versions 15.7(3.1.8A)OT, 15.7(3.1.4A)OT, 15.7(2.0k)M, 15.6(3)M3, 15.6(3)M2.2, 15.6(2)T3, 15.5(3)M6 or 15.4(3)M8.

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-dos