CVE-2023-1206
Medium
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%.
SeverityMedium
CVSS5.7
Exploit probability—
Product
Linux Kernel
PublishedJun 30, 2023
First seenJun 30, 2023
Weakness typeCWE-400Uncontrolled resource consumption
How to fix
Update
- linux linux_kernel6.5 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v < 6.5 | 6.5 |
| redhat enterprise_linux | 8.0, 9.0 | — |
| fedoraproject fedora | 38 | — |
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