CVE - CVE-2018-6922

CVE-ID
CVE-2018-6922	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
BID:105058 URL:http://www.securityfocus.com/bid/105058 CONFIRM:https://security.netapp.com/advisory/ntap-20180815-0002/ CONFIRM:https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html FREEBSD:FreeBSD-SA-18:08 URL:https://www.freebsd.org/security/advisories/FreeBSD-SA-18:08.tcp.asc SECTRACK:1041425 URL:http://www.securitytracker.com/id/1041425
Assigning CNA
FreeBSD
Date Record Created
20180212	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20180212)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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