CVE-2018-6916 Information

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.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

http://www.securitytracker.com/id/1040460 https://www.freebsd.org/security/advisories/FreeBSD-SA-18:01.ipsec.asc

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8