CVE-2023-1206CWE-400denial-of-service

CVE-2023-1206

Medium · published July 1, 2023

CVSS v3.1
5.7
EPSS
1%
Percentile
49.6
In the wild
Unconfirmed
What it is

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%.

The record
Technical detail
CVSS v3.1
5.7 · MEDIUM
Vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00630 · 49.6th percentile
Weakness
CWE-400 · Uncontrolled Resource Consumption
Published
2023-07-01T02:15Z
Affected products (4)
ProductVersionsFixed in
linux/linux_kernel< 6.56.5
redhat/enterprise_linuxall versions—
redhat/enterprise_linuxall versions—
fedoraproject/fedoraall versions—
References (16)
https://bugzilla.redhat.com/show_bug.cgi?id=2175903 · [email protected]https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html · [email protected]https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html · [email protected]https://security.netapp.com/advisory/ntap-20230929-0006/ · [email protected]https://www.debian.org/security/2023/dsa-5480 · [email protected]https://www.debian.org/security/2023/dsa-5492 · af854a3a-2127-422b-91ae-364da2661108https://cert-portal.siemens.com/productcert/html/ssa-398330.html · 0b142b55-0307-4c5a-b3c9-f314f3fb7c5ehttps://cert-portal.siemens.com/productcert/html/ssa-769027.html · 0b142b55-0307-4c5a-b3c9-f314f3fb7c5ehttps://cert-portal.siemens.com/productcert/html/ssa-794697.html · 0b142b55-0307-4c5a-b3c9-f314f3fb7c5ehttps://cert-portal.siemens.com/productcert/html/ssa-806742.html · 0b142b55-0307-4c5a-b3c9-f314f3fb7c5ehttps://www.debian.org/security/2023/dsa-5492 · [email protected]https://bugzilla.redhat.com/show_bug.cgi?id=2175903 · af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html · af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html · af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20230929-0006/ · af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2023/dsa-5480 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 30 JUN 00:00Z
    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
    cvelistv5