Critical severity · published Mar 9, 2018
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
9.8
CVSS
2.1%
EPSS
No
On KEV
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
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.1% · higher than 81% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FR
Freebsd · Freebsd
11.0 before 11.1; 10.3; 10.4; 10.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-6916
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-6916
Third Party Advisory
http://www.securitytracker.com/id/1040460
Patch
https://www.freebsd.org/security/advisories/FreeBSD-SA-18:01.ipsec.asc
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