vulnerability
FreeBSD: VID-3c2eea8c-99bf-11e8-8bee-a4badb2f4699 (CVE-2018-6922): FreeBSD -- Resource exhaustion in TCP reassembly
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:N/I:N/A:P) | Aug 6, 2018 | Aug 7, 2018 | Dec 10, 2025 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
Aug 6, 2018
Added
Aug 7, 2018
Modified
Dec 10, 2025
Description
Problem Description: One of the data structures that holds TCP segments 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. Impact: 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.
Solutions
freebsd-upgrade-base-11_2-release-p1freebsd-upgrade-base-11_1-release-p12freebsd-upgrade-base-10_4-release-p10
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