CVE-2018-0157

Description

A vulnerability in the Zone-Based Firewall code of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a device to reload. The vulnerability is due to the way fragmented packets are handled in the firewall code. An attacker could exploit this vulnerability by sending fragmented IP Version 4 or IP Version 6 packets through an affected device. An exploit could allow the attacker to cause the device to crash, resulting in a denial of service (DoS) condition. The following releases of Cisco IOS XE Software are vulnerable: Everest-16.4.1, Everest-16.4.2, Everest-16.5.1, Everest-16.5.1b, Everest-16.6.1, Everest-16.6.1a. Cisco Bug IDs: CSCvf60296.

Category

8.6
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 3.25% Top 15%
Vendor Advisory cisco.com
Affected: n/a Cisco IOS XE
Published at:
Updated at:

References

Link Tags
http://www.securitytracker.com/id/1040593 third party advisory vdb entry
http://www.securityfocus.com/bid/103561 third party advisory vdb entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-fwip vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-0157?
CVE-2018-0157 has been scored as a high severity vulnerability.
How to fix CVE-2018-0157?
To fix CVE-2018-0157, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-0157 being actively exploited in the wild?
It is possible that CVE-2018-0157 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~3% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-0157?
CVE-2018-0157 affects n/a Cisco IOS XE.
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