CVE-2023-1206

MEDIUM5.7

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

Published Jun 30, 2023

Modified 1 years ago

No fix available

Details

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%.

References

WEBhttps://bugzilla.redhat.com/show_bug.cgi?id=2175903 WEBhttps://lists.debian.org/debian-lts-announce/2023/10/msg00027.html WEBhttps://lists.debian.org/debian-lts-announce/2024/01/msg00004.html WEBhttps://security.netapp.com/advisory/ntap-20230929-0006/ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2023-1206 ADVISORYhttps://www.debian.org/security/2023/dsa-5480 ADVISORYhttps://www.debian.org/security/2023/dsa-5492

CVSS Analysis

CVSS v3.1

5.7

Exploitability

Attack Vector

AdjacentAV:A

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

UnchangedS:U

Impact

Confidentiality

NoneC:N

Integrity

NoneI:N

Availability

HighA:H

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

Weakness Type (CWE)

Resource Management

CWE-400

Resource Exhaustion

Ecosystems

Timeline

PublishedJun 30, 2023

ModifiedOct 15, 2024