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.
References
| Link | Resource |
|---|---|
| http://www.securityfocus.com/bid/105058 | Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id/1041425 | Third Party Advisory VDB Entry |
| https://security.netapp.com/advisory/ntap-20180815-0002/ | Third Party Advisory |
| https://www.freebsd.org/security/advisories/FreeBSD-SA-18:08.tcp.asc | Patch Vendor Advisory |
| https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html | Patch |
Configurations
Configuration 1 (hide)
|
History
No history.
Information
Published : 2018-08-09 18:29
Updated : 2023-12-10 12:44
NVD link : CVE-2018-6922
Mitre link : CVE-2018-6922
CVE.ORG link : CVE-2018-6922
JSON object : View
Products Affected
freebsd
- freebsd
CWE
CWE-400
Uncontrolled Resource Consumption