CVE-2018-0158

Known Exploited

Description

A vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a memory leak or a reload of an affected device that leads to a denial of service (DoS) condition. The vulnerability is due to incorrect processing of certain IKEv2 packets. An attacker could exploit this vulnerability by sending crafted IKEv2 packets to an affected device to be processed. A successful exploit could cause an affected device to continuously consume memory and eventually reload, resulting in a DoS condition. Cisco Bug IDs: CSCvf22394.

Categories

8.6
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 15.93% Top 10%
KEV Since 
Vendor Advisory cisco.com
Affected: n/a Cisco IOS and IOS XE
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/103566 vdb entry third party advisory broken link
https://ics-cert.us-cert.gov/advisories/ICSA-18-107-03 us government resource vdb entry third party advisory
https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04 us government resource vdb entry third party advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-ike vendor advisory
http://www.securitytracker.com/id/1040595 vdb entry third party advisory broken link

Frequently Asked Questions

What is the severity of CVE-2018-0158?
CVE-2018-0158 has been scored as a high severity vulnerability.
How to fix CVE-2018-0158?
To fix CVE-2018-0158, 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-2018-0158 being actively exploited in the wild?
It is confirmed that CVE-2018-0158 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~16% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-0158?
CVE-2018-0158 affects n/a Cisco IOS and IOS XE.
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