National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-6923 Detail

Current 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.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (V3 legend)
Impact Score: 3.6
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 7.8 HIGH
Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:C) (V2 legend)
Impact Subscore: 6.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/105336 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1041505 Third Party Advisory VDB Entry
https://www.freebsd.org/security/advisories/FreeBSD-SA-18:10.ip.asc Mitigation Vendor Advisory

Technical Details

Vulnerability Type (View All)

  • Uncontrolled Resource Consumption (CWE-400)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:freebsd:freebsd:2.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:3.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:4.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:4.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:4.5:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:4.6:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:4.7:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:4.8:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:4.9:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:4.10:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:4.11:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:5.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:5.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:5.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:5.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:5.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:5.5:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:6.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:6.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:6.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:6.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:6.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:7.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:7.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:7.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:7.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:7.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:8.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:8.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:8.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:8.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:8.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:9.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:9.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:9.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:9.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:10.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:11.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:11.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:freebsd:freebsd:11.2:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-6923
NVD Published Date:
09/04/2018
NVD Last Modified:
11/13/2018