CVE-2023-1206

2023-06-3000:00:00

ubuntu.com

cve-2023-1206

linux kernel

ipv6

hash collision

syn flood attack

cpu usage

bugzilla

redhat

suse

network

bandwidth

5.7 Medium

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.0004 Low

EPSS

Percentile

5.1%

JSON

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%.

Bugs

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlinux< 4.15.0-219.230UNKNOWN
ubuntu20.04noarchlinux< 5.4.0-164.181UNKNOWN
ubuntu22.04noarchlinux< 5.15.0-86.96UNKNOWN
ubuntu23.04noarchlinux< 6.2.0-34.34UNKNOWN
ubuntu14.04noarchlinux< 3.13.0-194.245UNKNOWN
ubuntu16.04noarchlinux< 4.4.0-246.280UNKNOWN
ubuntu18.04noarchlinux-aws< 4.15.0-1162.175UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1111.120UNKNOWN
ubuntu22.04noarchlinux-aws< 5.15.0-1047.52UNKNOWN
ubuntu23.04noarchlinux-aws< 6.2.0-1013.13UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	linux	< 4.15.0-219.230	UNKNOWN
ubuntu	20.04	noarch	linux	< 5.4.0-164.181	UNKNOWN
ubuntu	22.04	noarch	linux	< 5.15.0-86.96	UNKNOWN
ubuntu	23.04	noarch	linux	< 6.2.0-34.34	UNKNOWN
ubuntu	14.04	noarch	linux	< 3.13.0-194.245	UNKNOWN
ubuntu	16.04	noarch	linux	< 4.4.0-246.280	UNKNOWN
ubuntu	18.04	noarch	linux-aws	< 4.15.0-1162.175	UNKNOWN
ubuntu	20.04	noarch	linux-aws	< 5.4.0-1111.120	UNKNOWN
ubuntu	22.04	noarch	linux-aws	< 5.15.0-1047.52	UNKNOWN
ubuntu	23.04	noarch	linux-aws	< 6.2.0-1013.13	UNKNOWN