IPv6 Connection Lookup Table Hash Collision Vulnerability

CVE-2023-1206 · MEDIUM Severity

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

A hash collision flaw was found in the IPv6 connection lookup table in the Linux kernel’s IPv6 functionality when a user makes a new kind of SYN flood attack. A user located in the local network or with a high bandwidth connection can increase the CPU usage of the server that accepts IPV6 connections up to 95%.

Learn more about our Cis Benchmark Audit For Distribution Independent Linux.