Executive Summary

Informations
Name CVE-2018-6922 First vendor Publication 2018-08-09
Vendor Cve Last vendor Modification 2024-11-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Overall CVSS Score 5.3
Base Score 5.3 Environmental Score 5.3
impact SubScore 1.4 Temporal Score 5.3
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact Low
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

One of the data structures that holds TCP segments in all versions of FreeBSD prior to 11.2-RELEASE-p1, 11.1-RELEASE-p12, and 10.4-RELEASE-p10 uses an inefficient algorithm to reassemble the data. This causes the CPU time spent on segment processing to grow linearly with the number of segments in the reassembly queue. An attacker who has the ability to send TCP traffic to a victim system can degrade the victim system's network performance and/or consume excessive CPU by exploiting the inefficiency of TCP reassembly handling, with relatively small bandwidth cost.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6922

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-400 Uncontrolled Resource Consumption ('Resource Exhaustion')

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 19

Nessus® Vulnerability Scanner

Date Description
2018-11-09 Name : The remote AIX host is missing a security patch.
File : aix_IJ09618.nasl - Type : ACT_GATHER_INFO
2018-11-09 Name : The remote AIX host is missing a security patch.
File : aix_IJ09619.nasl - Type : ACT_GATHER_INFO
2018-11-09 Name : The remote AIX host is missing a security patch.
File : aix_IJ09620.nasl - Type : ACT_GATHER_INFO
2018-11-09 Name : The remote AIX host is missing a security patch.
File : aix_IJ09621.nasl - Type : ACT_GATHER_INFO
2018-11-09 Name : The remote AIX host is missing a security patch.
File : aix_IJ09622.nasl - Type : ACT_GATHER_INFO
2018-11-09 Name : The remote AIX host is missing a security patch.
File : aix_IJ09623.nasl - Type : ACT_GATHER_INFO
2018-11-09 Name : The remote AIX host is missing a security patch.
File : aix_IJ09624.nasl - Type : ACT_GATHER_INFO
2018-11-09 Name : The remote AIX host is missing a security patch.
File : aix_IJ09625.nasl - Type : ACT_GATHER_INFO
2018-08-07 Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_3c2eea8c99bf11e88beea4badb2f4699.nasl - Type : ACT_GATHER_INFO

Sources (Detail)

http://www.securityfocus.com/bid/105058
http://www.securitytracker.com/id/1041425
https://security.netapp.com/advisory/ntap-20180815-0002/
https://www.freebsd.org/security/advisories/FreeBSD-SA-18:08.tcp.asc
https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
Source Url

Alert History

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Date Informations
2024-11-28 13:22:36
  • Multiple Updates
2021-05-04 13:19:03
  • Multiple Updates
2021-04-22 02:35:27
  • Multiple Updates
2020-05-23 01:19:00
  • Multiple Updates
2019-10-10 05:20:46
  • Multiple Updates
2019-10-03 09:21:26
  • Multiple Updates
2019-03-20 17:18:59
  • Multiple Updates
2019-01-17 00:19:30
  • Multiple Updates
2018-10-11 17:19:48
  • Multiple Updates
2018-08-16 17:19:28
  • Multiple Updates
2018-08-14 17:19:42
  • Multiple Updates
2018-08-11 09:19:15
  • Multiple Updates
2018-08-10 00:19:30
  • First insertion