Vulnerability Details : CVE-2023-1206
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%.
Products affected by CVE-2023-1206
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-1206
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 15 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-1206
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.7
|
MEDIUM | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
2.1
|
3.6
|
NIST |
CWE ids for CVE-2023-1206
-
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)
References for CVE-2023-1206
-
https://www.debian.org/security/2023/dsa-5480
Debian -- Security Information -- DSA-5480-1 linux
-
https://www.debian.org/security/2023/dsa-5492
Debian -- Security Information -- DSA-5492-1 linux
-
https://security.netapp.com/advisory/ntap-20230929-0006/
CVE-2023-1206 Linux Kernel Vulnerability in NetApp Products | NetApp Product Security
-
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
[SECURITY] [DLA 3623-1] linux-5.10 security update
-
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
[SECURITY] [DLA 3710-1] linux security update
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https://bugzilla.redhat.com/show_bug.cgi?id=2175903
2175903 – (CVE-2023-1206) CVE-2023-1206 kernel: hash collisions in the IPv6 connection lookup tableIssue Tracking;Third Party Advisory
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