CVE-2018-6916

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.

• CWE-416

• 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

Published

Mar 9, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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