CVE-2018-0472: Cisco IOS XE Software and Cisco ASA 5500-X Series Adaptive Security Appliance IPsec Denial of Service Vulnerability

Published Oct 5, 2018

Updated

A vulnerability in the IPsec driver code of multiple Cisco IOS XE Software platforms and the Cisco ASA 5500-X Series Adaptive Security Appliance (ASA) could allow an unauthenticated, remote attacker to cause the device to reload. The vulnerability is due to improper processing of malformed IPsec Authentication Header (AH) or Encapsulating Security Payload (ESP) packets. An attacker could exploit this vulnerability by sending malformed IPsec packets to be processed by an affected device. An exploit could allow the attacker to cause a reload of the affected device.

Affected Software

2 affected components

Cisco IOS XE=15.5\(3\)s5.36

Cisco IOS XE=16.8.1

Event History

Oct 5, 2018

CVE Published

via MITRE·02:00 PM

Data Sourced

via MITRE·02:00 PM

DescriptionWeakness

Frequently Asked Questions

What is the severity of CVE-2018-0472?

CVE-2018-0472 has been categorized with a high severity level due to its potential to allow unauthenticated remote attackers to reload affected devices.

How do I fix CVE-2018-0472?

To fix CVE-2018-0472, upgrade to the recommended patched version of Cisco IOS XE software provided by Cisco.

Which Cisco products are affected by CVE-2018-0472?

CVE-2018-0472 affects multiple Cisco IOS XE Software platforms and the Cisco ASA 5500-X Series Adaptive Security Appliance.

What causes the vulnerability CVE-2018-0472?

CVE-2018-0472 is caused by improper processing of malicious IPsec packets within the driver code.

Can CVE-2018-0472 be exploited remotely?

Yes, CVE-2018-0472 can be exploited by unauthenticated remote attackers, leading to a device reload.