CVE-2018-0230

Description

A vulnerability in the internal packet-processing functionality of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series Security Appliances could allow an unauthenticated, remote attacker to cause an affected device to stop processing traffic, resulting in a denial of service (DoS) condition. The vulnerability is due to the affected software improperly validating IP Version 4 (IPv4) and IP Version 6 (IPv6) packets after the software reassembles the packets (following IP Fragmentation). An attacker could exploit this vulnerability by sending a series of malicious, fragmented IPv4 or IPv6 packets to an affected device. A successful exploit could allow the attacker to cause Snort processes on the affected device to hang at 100% CPU utilization, which could cause the device to stop processing traffic and result in a DoS condition until the device is reloaded manually. This vulnerability affects Cisco Firepower Threat Defense (FTD) Software Releases 6.2.1 and 6.2.2, if the software is running on a Cisco Firepower 2100 Series Security Appliance. Cisco Bug IDs: CSCvf91098.

Category

8.6
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.84% Top 30%
Vendor Advisory cisco.com
Affected: n/a Cisco Firepower 2100 Series Security Appliances
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/103931 vdb entry third party advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-fp2100 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-0230?
CVE-2018-0230 has been scored as a high severity vulnerability.
How to fix CVE-2018-0230?
To fix CVE-2018-0230, 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-2018-0230 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-0230 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-0230?
CVE-2018-0230 affects n/a Cisco Firepower 2100 Series Security Appliances.
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