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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: freebsd

Published: 2018-08-09T18:00:00Z

Updated: 2024-09-16T17:53:10.816Z

Reserved: 2018-02-12T00:00:00

Link: CVE-2018-6922

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-08-09T18:29:00.277

Modified: 2019-10-09T23:42:06.470

Link: CVE-2018-6922

cve-icon Redhat

No data.