CVE-2023-1206

CVSS 3.1 Score 5.7 of 10 (medium)

Details

Published Jun 30, 2023
Updated: Jan 11, 2024
CWE ID 400

Summary

CVE-2023-1206 is a newly discovered vulnerability affecting the Linux kernel's IPv6 functionality. This flaw, which involves a hash collision in the connection lookup table, can be exploited through a specific SYN flood attack. A malicious user, located in the local network or possessing a high-bandwidth connection, can trigger the issue, leading to an excessive increase in CPU usage on the targeted server, reaching up to 95%. The vulnerability poses a significant risk for servers that accept IPv6 connections and requires immediate attention from system administrators.

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