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 | Mar 27, 2026 |
Severity
6
CVSS
(AV:A/AC:L/Au:S/C:N/I:N/A:C)
Published
Jun 30, 2023
Added
Oct 11, 2023
Modified
Mar 27, 2026
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
redhat-upgrade-kernelredhat-upgrade-kernel-rt
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