High severity · published Sep 4, 2018
CVE-2018-6923
In 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 excessive system resource consumption
7.5
CVSS
4%
EPSS
No
On KEV
Description
In 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 excessive system resource consumption. This issue can allow a remote attacker who is able to send an arbitrary ip fragments to cause the machine to consume excessive resources.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)4.0% · higher than 90% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FR
Freebsd · Freebsd
2.2; 3.0; 4.3; 4.4; 4.5; 4.6; +34 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-6923
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-6923
Third Party Advisory
http://www.securityfocus.com/bid/105336
Third Party Advisory
http://www.securitytracker.com/id/1041505
Mitigation
https://www.freebsd.org/security/advisories/FreeBSD-SA-18:10.ip.asc
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