vulnerability
Red Hat: CVE-2023-1206: hash collisions in the IPv6 connection lookup table (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:A/AC:L/Au:S/C:N/I:N/A:C) | Jun 30, 2023 | Oct 11, 2023 | Aug 11, 2025 |
Severity
6
CVSS
(AV:A/AC:L/Au:S/C:N/I:N/A:C)
Published
Jun 30, 2023
Added
Oct 11, 2023
Modified
Aug 11, 2025
Description
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%.
Solutions
no-fix-redhat-rpm-packageredhat-upgrade-kernelredhat-upgrade-kernel-rt
NEW
Explore Exposure Command
Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.