CVE-2018-6923 — HIGH (7.5) — White Hats Nepal

Vulnerability 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 Score

7.5

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Freebsd	Freebsd	2.2

Related Weaknesses (CWE)

CWE-400

References

http://www.securityfocus.com/bid/105336Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1041505Third Party AdvisoryVDB Entry
https://www.freebsd.org/security/advisories/FreeBSD-SA-18:10.ip.ascMitigationVendor Advisory
http://www.securityfocus.com/bid/105336Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1041505Third Party AdvisoryVDB Entry
https://www.freebsd.org/security/advisories/FreeBSD-SA-18:10.ip.ascMitigationVendor Advisory

FAQ

What is CVE-2018-6923?

CVE-2018-6923 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 ...

How severe is CVE-2018-6923?

CVE-2018-6923 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-6923?

Check the references section above for vendor advisories and patch information. Affected products include: Freebsd Freebsd.