CVE-2018-6923

Description

In FreeBSD before 11.1-STABLE, 11.2-RELEASE-p2, 11.1-RELEASE-p13, ip fragment reassembly code is vulnerable to a denial of service due to excessive system resource consumption. This issue can allow a remote attacker who is able to send an arbitrary ip fragments to cause the machine to consume excessive resources.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 4.71% Top 15%
Vendor Advisory freebsd.org
Affected: FreeBSD FreeBSD
Published at:
Updated at:

References

Link Tags
http://www.securityfocus.com/bid/105336 third party advisory vdb entry
http://www.securitytracker.com/id/1041505 third party advisory vdb entry
https://www.freebsd.org/security/advisories/FreeBSD-SA-18:10.ip.asc mitigation vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-6923?
CVE-2018-6923 has been scored as a high severity vulnerability.
How to fix CVE-2018-6923?
To fix CVE-2018-6923, 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-2018-6923 being actively exploited in the wild?
It is possible that CVE-2018-6923 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~5% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-6923?
CVE-2018-6923 affects FreeBSD FreeBSD.
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