CVE-2018-6923

CVSS V2 High 7.8 CVSS V3 High 7.5
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.
Overview
  • CVE ID
  • CVE-2018-6923
  • Assigner
  • secteam@freebsd.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2018-09-04T18:29:00
  • Last Modified Date
  • 2018-11-13T15:09:04
Weakness Enumerations
CWE URL
CWE-400 http://cwe.mitre.org/data/definitions/400.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:freebsd:freebsd:2.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:3.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:4.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:4.4:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:4.5:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:4.6:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:4.7:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:4.8:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:4.9:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:4.10:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:4.11:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:5.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:5.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:5.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:5.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:5.4:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:5.5:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:6.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:6.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:6.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:6.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:6.4:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:7.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:7.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:7.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:7.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:7.4:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:8.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:8.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:8.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:8.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:8.4:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:9.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:9.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:9.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:9.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:10.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:11.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:11.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:freebsd:freebsd:11.2:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 7.8
  • Severity
  • HIGH
  • Exploitability Score
  • 10
  • Impact Score
  • 6.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://www.freebsd.org/security/advisories/FreeBSD-SA-18:10.ip.asc Mitigation Vendor Advisory
http://www.securitytracker.com/id/1041505 Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/105336 Third Party Advisory VDB Entry
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2018-6923
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6923
History
Created Old Value New Value Data Type Notes
2022-05-10 17:53:13 Added to TrackCVE
2022-12-03 11:46:50 2018-09-04T18:29Z 2018-09-04T18:29:00 CVE Published Date updated
2022-12-03 11:46:50 2018-11-13T15:09:04 CVE Modified Date updated
2022-12-03 11:46:50 Analyzed Vulnerability Status updated