National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-6922 Detail

Description

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.

Source:  MITRE
Description Last Modified:  08/09/2018

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Hyperlink Resource
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

Technical Details

Vulnerability Type (View All)

Change History

3 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-6922
NVD Published Date:
08/09/2018
NVD Last Modified:
08/16/2018