CVE-2018-6916

CriticalCVSS 9.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.0 9.8/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

Vendor	Product	Versions
FreeBSD	FreeBSD	All supported versions of FreeBSD

References

http://www.securitytracker.com/id/1040460Third Party Advisory, VDB Entry
https://www.freebsd.org/security/advisories/FreeBSD-SA-18:01.ipsec.ascPatch, Vendor Advisory
http://www.securitytracker.com/id/1040460Third Party Advisory, VDB Entry
https://www.freebsd.org/security/advisories/FreeBSD-SA-18:01.ipsec.ascPatch, Vendor Advisory

Timeline

Published: Mar 9, 2018
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2018

CVE-2018-69177.5In FreeBSD before 11.1-STABLE, 11.1-RELEASE-p9, 10.4-STABLE, 10.4-RELEASE-p8 and 10.3-RELEASE-p28, insufficient validation of user-provided CVE-2018-69187.5In FreeBSD before 11.1-STABLE, 11.1-RELEASE-p9, 10.4-STABLE, 10.4-RELEASE-p8 and 10.3-RELEASE-p28, the length field of the ipsec option head CVE-2018-69197.5In FreeBSD before 11.1-STABLE, 11.1-RELEASE-p9, 10.4-STABLE, 10.4-RELEASE-p8 and 10.3-RELEASE-p28, due to insufficient initialization of mem CVE-2018-69205.5In FreeBSD before 11.1-STABLE(r332303), 11.1-RELEASE-p10, 10.4-STABLE(r332321), and 10.4-RELEASE-p9, due to insufficient initialization of m CVE-2018-69215.5In FreeBSD before 11.1-STABLE(r332066) and 11.1-RELEASE-p10, due to insufficient initialization of memory copied to userland in the network CVE-2018-69225.3One of the data structures that holds TCP segments in all versions of FreeBSD prior to 11.2-RELEASE-p1, 11.1-RELEASE-p12, and 10.4-RELEASE-p CVE-2018-69237.5In 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 ex CVE-2018-69247.1In FreeBSD before 11.1-STABLE, 11.2-RELEASE-p3, 11.1-RELEASE-p14, 10.4-STABLE, and 10.4-RELEASE-p12, insufficient validation in the ELF head CVE-2018-69255.5In FreeBSD before 11.2-STABLE(r338986), 11.2-RELEASE-p4, 11.1-RELEASE-p15, 10.4-STABLE(r338985), and 10.4-RELEASE-p13, due to improper maint CVE-2018-69267.2In app/Controller/ServersController.php in MISP 2.4.87, a server setting permitted the override of a path variable on certain Red Hed Enterp CVE-2018-69277.8The futex_requeue function in kernel/futex.c in the Linux kernel before 4.14.15 might allow attackers to cause a denial of service (integer CVE-2018-69289.8PHP Scripts Mall News Website Script 2.0.4 has SQL Injection via a search term.