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CVE-2018-6916

nvd nist
Published: Mar 9, 2018Modified: Jun 17, 2026

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9.8
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability: 3.9 / Impact: 5.9
Source: NVD

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.

Affected (4)

Products: Freebsd: Freebsd
Freebsd
1 product
Freebsd
Configuration A
4 vulnerable
Vulnerable SoftwareAffected Versions
Freebsd
Freebsd
From 11.0 to 11.1
Freebsd
Version 10.3 p28
Freebsd
Version 10.4
Freebsd
Version 10.4 p7

Related CWEs

CWE-416
Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (4)

Source: secteam@freebsd.org
Third Party AdvisoryVDB Entry
Source: secteam@freebsd.org
PatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party AdvisoryVDB Entry
Source: af854a3a-2127-422b-91ae-364da2661108
PatchVendor Advisory

Timeline

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