CVE-2018-6916

Description

In FreeBSD before 11.1-STABLE, 11.1-RELEASE-p7, 10.4-STABLE, 10.4-RELEASE-p7, and 10.3-RELEASE-p28, the kernel does not properly validate IPsec packets coming from a trusted host. Additionally, a use-after-free vulnerability exists in the IPsec AH handling code. This issue could cause a system crash or other unpredictable results.

Category

9.8
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.60% Top 20%
Vendor Advisory freebsd.org
Affected: FreeBSD FreeBSD
Published at:
Updated at:

References

Link Tags
http://www.securitytracker.com/id/1040460 vdb entry third party advisory
https://www.freebsd.org/security/advisories/FreeBSD-SA-18:01.ipsec.asc patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-6916?
CVE-2018-6916 has been scored as a critical severity vulnerability.
How to fix CVE-2018-6916?
To fix CVE-2018-6916, 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-2018-6916 being actively exploited in the wild?
It is possible that CVE-2018-6916 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-6916?
CVE-2018-6916 affects FreeBSD FreeBSD.
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