CVE-2023-1206

Medium

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%.

Package Linux Kernel
Published 2023-06-30
Last modified 2024-11-21
CVSS version 3.1
Patch available
Awaiting data

CVSS 3.1 score

5.7

out of 10
Medium
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High
Vector string
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-400

CVE-2023-1206 is a Uncontrolled Resource Consumption vulnerability

What is Uncontrolled Resource Consumption?

The product does not properly control the amount of resources it consumes, leading to exhaustion. Learn more on MITRE CWE

Frequently asked questions

  • What is CVE-2023-1206?

    CVE-2023-1206 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.7 out of 10 , classified as an Uncontrolled Resource Consumption flaw (CWE-400) . CVE-2023-1206 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2023-1206?

    CVE-2023-1206 has a CVSS score of 5.7 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H .

  • Is there a patch available for CVE-2023-1206?

    Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2023-1206 patch availability.

  • Is CVE-2023-1206 actively exploited?

    No. CVE-2023-1206 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.