IM
IronMonkey Threat Research

CVE-2023-1206 MEDIUM

Published: 2023-06-30 | Last Modified: 2024-11-21 | Status: Modified

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%.

CVSS Metrics

Base Score: 5.7 (MEDIUM)

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack VectorADJACENT_NETWORK
Attack ComplexityLOW
Privileges RequiredLOW
User InteractionNONE
ScopeUNCHANGED
Confidentiality ImpactNONE
Integrity ImpactNONE
Availability ImpactHIGH

Source: [email protected]

Type: Primary

Exploitability Score: 2.1

Impact Score: 3.6

Weaknesses

Source Type Description
[email protected] Secondary
en CWE-400
[email protected] Primary
en CWE-400

Affected Products

Vendor Product Version Update Type
linux linux_kernel * <built-in method update of dict object at 0x7fd340a42a00> Operating System
redhat enterprise_linux 8.0 <built-in method update of dict object at 0x7fd2dbc09280> Operating System
redhat enterprise_linux 9.0 <built-in method update of dict object at 0x7fd360693980> Operating System
fedoraproject fedora 38 <built-in method update of dict object at 0x7fd384123cc0> Operating System

Affected Configurations

Operator: OR

Vulnerable CPE
Yes cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Operator: OR

Vulnerable CPE
Yes cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
Yes cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*

Operator: OR

Vulnerable CPE
Yes cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*

References