CVE-2018-6916

Critical

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.

SeverityCritical

CVSS9.8

Exploit probability—

Product

Freebsd

PublishedMar 9, 2018

First seenMar 9, 2018

How to fix

Update

freebsd freebsd11.1 or later

Vendor advisories

freebsd.org/security/advisories/FreeBSD-SA-18:01.ipsec.asc

Affected products

Product	Affected versions	Fixed in
freebsd freebsd	11.0 ≤ v < 11.1, 10.3, 10.4	11.1

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