CVE-2023-1206: fedoraproject fedora Uncontrolled Resource Consumption

Modified

AliasesUBUNTU-CVE-2023-1206DEBIAN-CVE-2023-1206

Published 30-06-2023Last modified 14-10-2026

Vulnerability summary

CVE-2023-1206 is a medium (CVSS 5.7) Uncontrolled Resource Consumption vulnerability in fedoraproject fedora. EPSS estimates a 0.63% chance of exploitation in the next 30 days, higher than 50.2% of scored vulnerabilities.

Priority

Routine

Not severe (CVSS 5.7, adjacent network); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

5.7/10

010

Medium · v3.1 (NVD)

EPSS score

0.63%

0%100%

Low · +0.08 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits0No public exploits recorded

Timeline

30-06-2023
PublishedVulnerability first disclosed.
14-10-2026
Last modifiedVulnerability information updated.

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

4 scores · 3 sources · 2 versions

v4.08.7v3.15.7

EPSS trend

Probability

0.63%

Chance of exploitation in the next 30 days

Percentile

50%

Versus all other CVEs

30-day change

Increase +0.08 pp

From 0.55% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs

CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

CWE-400Uncontrolled Resource ConsumptionThe product does not properly control the allocation and maintenance of a limited resource.

Affected systems

Version check

Known conditions: adjacent network, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu101 products

linux< 3.13.0-194.245 | < 4.4.0-246.280 | < 4.15.0-219.230 | < 5.4.0-164.181 | < 5.15.0-86.96
linux-aws< 4.4.0-1124.130 | < 4.4.0-1162.177 | < 4.15.0-1162.175 | < 5.4.0-1111.120 | < 5.15.0-1047.52
linux-aws-5.0All versions (No fix recorded)
linux-aws-5.11All versions (No fix recorded)
linux-aws-5.13All versions (No fix recorded)

linux-aws-5.15< 5.15.0-1047.52~20.04.1
linux-aws-5.3All versions (No fix recorded)
linux-aws-5.4< 5.4.0-1111.120~18.04.1
linux-aws-5.8All versions (No fix recorded)
linux-aws-6.2< 6.2.0-1013.13~22.04.1
linux-aws-fips< 4.15.0-2101.107 | All versions (No fix recorded) | < 5.4.0-1111.120+fips1
linux-aws-hwe< 4.15.0-1162.175~16.04.1
linux-azure< 4.15.0-1171.186~14.04.1 | < 4.15.0-1171.186~16.04.1 | All versions (No fix recorded) | < 5.4.0-1117.124 | < 5.15.0-1049.56
linux-azure-4.15< 4.15.0-1171.186
linux-azure-5.11All versions (No fix recorded)
linux-azure-5.13All versions (No fix recorded)
linux-azure-5.15< 5.15.0-1049.56~20.04.1
linux-azure-5.19All versions (No fix recorded)
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.4< 5.4.0-1117.124~18.04.1
linux-azure-5.8All versions (No fix recorded)
linux-azure-6.2< 6.2.0-1014.14~22.04.1
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fdeAll versions (No fix recorded) | < 5.15.0-1049.56.1
linux-azure-fde-5.19All versions (No fix recorded)
linux-azure-fde-6.2< 6.2.0-1014.14~22.04.1.1
linux-azure-fips< 4.15.0-2080.86 | All versions (No fix recorded) | < 5.4.0-1117.124+fips1
linux-bluefield< 5.4.0-1072.78 | < 5.15.0-1027.29
linux-fips< 4.4.0-1094.101 | All versions (No fix recorded) | < 4.15.0-1117.128 | < 5.4.0-1086.95
linux-gcp< 4.15.0-1156.173~16.04.1 | All versions (No fix recorded) | < 5.4.0-1115.124 | < 5.15.0-1044.52
linux-gcp-4.15< 4.15.0-1156.173
linux-gcp-5.11All versions (No fix recorded)
linux-gcp-5.13All versions (No fix recorded)
linux-gcp-5.15< 5.15.0-1044.52~20.04.1
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.4< 5.4.0-1115.124~18.04.1
linux-gcp-5.8All versions (No fix recorded)
linux-gcp-6.2< 6.2.0-1016.18~22.04.1
linux-gcp-fips< 4.15.0-2064.69 | All versions (No fix recorded) | < 5.4.0-1115.124+fips1
linux-gkeAll versions (No fix recorded) | < 5.15.0-1044.49
linux-gke-4.15All versions (No fix recorded)
linux-gke-5.15All versions (No fix recorded)
linux-gke-5.4All versions (No fix recorded)
linux-gkeop< 5.4.0-1078.82 | < 5.15.0-1030.35
linux-gkeop-5.15< 5.15.0-1030.35~20.04.1
linux-gkeop-5.4All versions (No fix recorded)
linux-hwe< 4.15.0-219.230~16.04.1 | All versions (No fix recorded)
linux-hwe-5.11All versions (No fix recorded)
linux-hwe-5.13All versions (No fix recorded)
linux-hwe-5.15< 5.15.0-86.96~20.04.1
linux-hwe-5.19All versions (No fix recorded)
linux-hwe-5.4< 5.4.0-164.181~18.04.1
linux-hwe-5.8All versions (No fix recorded)
linux-hwe-6.2< 6.2.0-34.34~22.04.1
linux-hwe-edgeAll versions (No fix recorded)
linux-ibm< 5.4.0-1058.63 | < 5.15.0-1040.43
linux-ibm-5.15< 5.15.0-1040.43~20.04.1
linux-ibm-5.4< 5.4.0-1058.63~18.04.1
linux-intel-5.13All versions (No fix recorded)
linux-intel-iot-realtime< 5.15.0-1040.42
linux-intel-iotg< 5.15.0-1043.49
linux-intel-iotg-5.15< 5.15.0-1043.49~20.04.1
linux-iot< 5.4.0-1023.24
linux-kvm< 4.4.0-1125.135 | < 4.15.0-1146.151 | < 5.4.0-1100.106 | < 5.15.0-1044.49
linux-lowlatency< 5.15.0-86.95
linux-lowlatency-hwe-5.15< 5.15.0-86.95~20.04.1
linux-lowlatency-hwe-5.19All versions (No fix recorded)
linux-lowlatency-hwe-6.2< 6.2.0-1014.14~22.04.1
linux-lts-xenial< 4.4.0-246.280~14.04.1
linux-nvidia< 5.15.0-1037.37
linux-nvidia-6.2< 6.2.0-1011.11
linux-nvidia-tegra< 5.15.0-1018.18
linux-nvidia-tegra-5.15< 5.15.0-1018.18~20.04.1
linux-nvidia-tegra-igx< 5.15.0-1005.5
linux-oemAll versions (No fix recorded)
linux-oem-5.10All versions (No fix recorded)
linux-oem-5.13All versions (No fix recorded)
linux-oem-5.14All versions (No fix recorded)
linux-oem-5.17All versions (No fix recorded)
linux-oem-5.6All versions (No fix recorded)
linux-oem-6.0< 6.0.0-1021.21
linux-oem-6.1< 6.1.0-1021.21
linux-oracle< 4.15.0-1125.136~16.04.1 | < 4.15.0-1125.136 | < 5.4.0-1110.119 | < 5.15.0-1045.51
linux-oracle-5.0All versions (No fix recorded)
linux-oracle-5.11All versions (No fix recorded)
linux-oracle-5.13All versions (No fix recorded)
linux-oracle-5.15< 5.15.0-1045.51~20.04.1
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.4< 5.4.0-1110.119~18.04.1
linux-oracle-5.8All versions (No fix recorded)
linux-raspi< 5.4.0-1095.106 | < 5.15.0-1040.43
linux-raspi-5.4< 5.4.0-1095.106~18.04.1
linux-raspi-realtimeAll versions (No fix recorded)
linux-raspi2All versions (No fix recorded)
linux-realtimeAll versions (No fix recorded) | < 5.15.0-1048.54
linux-riscvAll versions (No fix recorded)
linux-riscv-5.11All versions (No fix recorded)
linux-riscv-5.15< 5.15.0-1043.47~20.04.1
linux-riscv-5.8All versions (No fix recorded)
linux-starfive-6.2All versions (No fix recorded)
linux-xilinx-zynqmp< 5.4.0-1031.35 | < 5.15.0-1025.29