This page tracks the Ubuntu fix status. The vulnerability itself is described on the main CVE page.
View CVE-2025-22021 →
Unrated
Vulnerability in linux
UBUNTU-CVE-2025-22021
First seen on SecPulse
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as UBUNTU-CVE-2025-22021 has been found in linux.
Risk of unauthorized operations or information disclosure.
What to do: upgrade linux to 5.4.0-1147.157~18.04.1 or later.
If unsure, ask your IT team or search "linux UBUNTU-CVE-2025-22021" on the vendor's site.
UBUNTU-CVE-2025-22021 (linux)
Attack vector: local / no user interaction
Patched: 5.4.0-1147.157~18.04.1 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
What is the problem
A vulnerability (unclassified) exists in linux.
Affected scope
Check the vendor advisory for the affected versions of linux.
Severity
Severity: ?. Risk of unauthorized operations or information disclosure.
How to fix
Update to 5.4.0-1147.157~18.04.1.
Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'linux' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1
Identify exposureidentify
grep -r 'linux' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
linuxを grep し、稼働しているサービス・バージョンを把握する。 -
2
Apply patchpatch
Upgrade linux to 5.4.0-1147.157~18.04.1ステージング環境で 5.4.0-1147.157~18.04.1 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
-
3
Post-deployment verificationverify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
| Ecosystem | Package | Affected | Fixed |
|---|---|---|---|
| Ubuntu:Pro:14.04:LTS | linux |
All versions |
— |
| Ubuntu:Pro:14.04:LTS | linux-aws |
All versions |
— |
| Ubuntu:Pro:14.04:LTS | linux-azure |
All versions |
— |
| Ubuntu:Pro:14.04:LTS | linux-lts-xenial |
All versions |
— |
| Ubuntu:Pro:16.04:LTS | linux |
All versions |
— |
| Ubuntu:Pro:16.04:LTS | linux-aws |
All versions |
— |
| Ubuntu:Pro:16.04:LTS | linux-aws-hwe |
All versions |
— |
| Ubuntu:Pro:16.04:LTS | linux-azure |
All versions |
— |
| Ubuntu:Pro:16.04:LTS | linux-gcp |
All versions |
— |
| Ubuntu:Pro:16.04:LTS | linux-hwe |
All versions |
— |
| Ubuntu:16.04:LTS | linux-hwe-edge |
All versions |
— |
| Ubuntu:Pro:16.04:LTS | linux-kvm |
All versions |
— |
| Ubuntu:Pro:16.04:LTS | linux-oracle |
All versions |
— |
| Ubuntu:Pro:FIPS:16.04:LTS | linux-fips |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | linux |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | linux-aws |
All versions |
— |
| Ubuntu:18.04:LTS | linux-aws-5.0 |
All versions |
— |
| Ubuntu:18.04:LTS | linux-aws-5.3 |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | linux-aws-5.4 |
< 5.4.0-1147.157~18.04.1 |
5.4.0-1147.157~18.04.1 |
| Ubuntu:18.04:LTS | linux-azure |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | linux-azure-4.15 |
All versions |
— |
| Ubuntu:18.04:LTS | linux-azure-5.3 |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | linux-azure-5.4 |
< 5.4.0-1152.159~18.04.1 |
5.4.0-1152.159~18.04.1 |
| Ubuntu:18.04:LTS | linux-azure-edge |
All versions |
— |
| Ubuntu:18.04:LTS | linux-gcp |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | linux-gcp-4.15 |
All versions |
— |
| Ubuntu:18.04:LTS | linux-gcp-5.3 |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | linux-gcp-5.4 |
< 5.4.0-1150.159~18.04.1 |
5.4.0-1150.159~18.04.1 |
| Ubuntu:18.04:LTS | linux-gke-4.15 |
All versions |
— |
| Ubuntu:18.04:LTS | linux-gke-5.4 |
All versions |
— |
| Ubuntu:18.04:LTS | linux-gkeop-5.4 |
All versions |
— |
| Ubuntu:18.04:LTS | linux-hwe |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | linux-hwe-5.4 |
< 5.4.0-218.238~18.04.1 |
5.4.0-218.238~18.04.1 |
| Ubuntu:18.04:LTS | linux-hwe-edge |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | linux-ibm-5.4 |
< 5.4.0-1093.98~18.04.1 |
5.4.0-1093.98~18.04.1 |
| Ubuntu:Pro:18.04:LTS | linux-kvm |
All versions |
— |
| Ubuntu:18.04:LTS | linux-oem |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | linux-oracle |
All versions |
— |
| Ubuntu:18.04:LTS | linux-oracle-5.0 |
All versions |
— |
| Ubuntu:18.04:LTS | linux-oracle-5.3 |
All versions |
— |
| Ubuntu:Pro:18.04:LTS | linux-oracle-5.4 |
< 5.4.0-1145.155~18.04.1 |
5.4.0-1145.155~18.04.1 |
| Ubuntu:Pro:18.04:LTS | linux-raspi-5.4 |
< 5.4.0-1130.143~18.04.1 |
5.4.0-1130.143~18.04.1 |
| Ubuntu:Pro:FIPS-updates:18.04:LTS | linux-aws-fips |
All versions |
— |
| Ubuntu:Pro:FIPS-updates:18.04:LTS | linux-azure-fips |
All versions |
— |
| Ubuntu:Pro:FIPS-updates:18.04:LTS | linux-fips |
All versions |
— |
| Ubuntu:Pro:FIPS-updates:18.04:LTS | linux-gcp-fips |
All versions |
— |
| Ubuntu:Pro:FIPS:18.04:LTS | linux-aws-fips |
All versions |
— |
| Ubuntu:Pro:FIPS:18.04:LTS | linux-azure-fips |
All versions |
— |
| Ubuntu:Pro:FIPS:18.04:LTS | linux-fips |
All versions |
— |
| Ubuntu:Pro:FIPS:18.04:LTS | linux-gcp-fips |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux |
< 5.4.0-218.238 |
5.4.0-218.238 |
| Ubuntu:Pro:20.04:LTS | linux-aws |
< 5.4.0-1147.157 |
5.4.0-1147.157 |
| Ubuntu:20.04:LTS | linux-aws-5.11 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-aws-5.13 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-aws-5.15 |
< 5.15.0-1086.93~20.04.1 |
5.15.0-1086.93~20.04.1 |
| Ubuntu:20.04:LTS | linux-aws-5.8 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-azure |
< 5.4.0-1152.159 |
5.4.0-1152.159 |
| Ubuntu:20.04:LTS | linux-azure-5.11 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-azure-5.13 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-azure-5.15 |
< 5.15.0-1091.100~20.04.1 |
5.15.0-1091.100~20.04.1 |
| Ubuntu:20.04:LTS | linux-azure-5.8 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-azure-fde |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-bluefield |
< 5.4.0-1106.113 |
5.4.0-1106.113 |
| Ubuntu:Pro:20.04:LTS | linux-gcp |
< 5.4.0-1150.159 |
5.4.0-1150.159 |
| Ubuntu:20.04:LTS | linux-gcp-5.11 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-gcp-5.13 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-gcp-5.15 |
< 5.15.0-1085.94~20.04.1 |
5.15.0-1085.94~20.04.1 |
| Ubuntu:20.04:LTS | linux-gcp-5.8 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-gke |
All versions |
— |
| Ubuntu:20.04:LTS | linux-gke-5.15 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-gkeop |
All versions |
— |
| Ubuntu:20.04:LTS | linux-gkeop-5.15 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-hwe-5.11 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-hwe-5.13 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-hwe-5.15 |
< 5.15.0-142.152~20.04.1 |
5.15.0-142.152~20.04.1 |
| Ubuntu:20.04:LTS | linux-hwe-5.8 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-ibm |
< 5.4.0-1093.98 |
5.4.0-1093.98 |
| Ubuntu:Pro:20.04:LTS | linux-ibm-5.15 |
< 5.15.0-1078.81~20.04.1 |
5.15.0-1078.81~20.04.1 |
| Ubuntu:20.04:LTS | linux-intel-5.13 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-intel-iotg-5.15 |
< 5.15.0-1083.89~20.04.1 |
5.15.0-1083.89~20.04.1 |
| Ubuntu:Pro:20.04:LTS | linux-iot |
< 5.4.0-1051.54 |
5.4.0-1051.54 |
| Ubuntu:Pro:20.04:LTS | linux-kvm |
< 5.4.0-1134.143 |
5.4.0-1134.143 |
| Ubuntu:Pro:20.04:LTS | linux-lowlatency-hwe-5.15 |
< 5.15.0-142.152~20.04.1 |
5.15.0-142.152~20.04.1 |
| Ubuntu:Pro:20.04:LTS | linux-nvidia-tegra-5.15 |
< 5.15.0-1039.39~20.04.1 |
5.15.0-1039.39~20.04.1 |
| Ubuntu:20.04:LTS | linux-oem-5.10 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-oem-5.13 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-oem-5.14 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-oem-5.6 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-oracle |
< 5.4.0-1145.155 |
5.4.0-1145.155 |
| Ubuntu:20.04:LTS | linux-oracle-5.11 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-oracle-5.13 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-oracle-5.15 |
< 5.15.0-1083.89~20.04.1 |
5.15.0-1083.89~20.04.1 |
| Ubuntu:20.04:LTS | linux-oracle-5.8 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-raspi |
< 5.4.0-1130.143 |
5.4.0-1130.143 |
| Ubuntu:20.04:LTS | linux-raspi2 |
All versions |
— |
| Ubuntu:20.04:LTS | linux-riscv |
All versions |
— |
| Ubuntu:20.04:LTS | linux-riscv-5.11 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-riscv-5.15 |
< 5.15.0-1081.85~20.04.1 |
5.15.0-1081.85~20.04.1 |
| Ubuntu:20.04:LTS | linux-riscv-5.8 |
All versions |
— |
| Ubuntu:Pro:20.04:LTS | linux-xilinx-zynqmp |
< 5.4.0-1065.69 |
5.4.0-1065.69 |
| Ubuntu:Pro:FIPS-updates:20.04:LTS | linux-aws-fips |
< 5.4.0-1147.157+fips1 |
5.4.0-1147.157+fips1 |
| Ubuntu:Pro:FIPS-updates:20.04:LTS | linux-azure-fips |
< 5.4.0-1153.160+fips1 |
5.4.0-1153.160+fips1 |
| Ubuntu:Pro:FIPS-updates:20.04:LTS | linux-fips |
< 5.4.0-1121.131 |
5.4.0-1121.131 |
| Ubuntu:Pro:FIPS-updates:20.04:LTS | linux-gcp-fips |
< 5.4.0-1150.159+fips1 |
5.4.0-1150.159+fips1 |
| Ubuntu:Pro:FIPS:20.04:LTS | linux-aws-fips |
All versions |
— |
| Ubuntu:Pro:FIPS:20.04:LTS | linux-azure-fips |
All versions |
— |
| Ubuntu:Pro:FIPS:20.04:LTS | linux-fips |
All versions |
— |
| Ubuntu:Pro:FIPS:20.04:LTS | linux-gcp-fips |
All versions |
— |
| Ubuntu:22.04:LTS | linux |
< 5.15.0-142.152 |
5.15.0-142.152 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-aws |
< 5.15.0-1086.93 |
5.15.0-1086.93 |
| Ubuntu:22.04:LTS | linux-aws-5.19 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-aws-6.2 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-aws-6.5 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-aws-6.8 |
< 6.8.0-1041.43~22.04.1 |
6.8.0-1041.43~22.04.1 |
| Ubuntu:22.04:LTS | linux-azure |
< 5.15.0-1091.100 |
5.15.0-1091.100 |
| Ubuntu:22.04:LTS | linux-azure-5.19 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-azure-6.2 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-azure-6.5 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-azure-6.8 |
< 6.8.0-1041.47~22.04.1 |
6.8.0-1041.47~22.04.1 |
| Ubuntu:22.04:LTS | linux-azure-fde |
< 5.15.0-1091.100.1 |
5.15.0-1091.100.1 |
| Ubuntu:22.04:LTS | linux-azure-fde-5.19 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-azure-fde-6.2 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-gcp |
< 5.15.0-1085.94 |
5.15.0-1085.94 |
| Ubuntu:22.04:LTS | linux-gcp-5.19 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-gcp-6.2 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-gcp-6.5 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-gcp-6.8 |
< 6.8.0-1042.45~22.04.1 |
6.8.0-1042.45~22.04.1 |
| Ubuntu:22.04:LTS | linux-gke |
< 5.15.0-1083.89 |
5.15.0-1083.89 |
| Ubuntu:22.04:LTS | linux-gkeop |
< 5.15.0-1068.76 |
5.15.0-1068.76 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-hwe-6.2 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-hwe-6.5 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-hwe-6.8 |
< 6.8.0-86.87~22.04.1 |
6.8.0-86.87~22.04.1 |
| Ubuntu:22.04:LTS | linux-ibm |
< 5.15.0-1078.81 |
5.15.0-1078.81 |
| Ubuntu:22.04:LTS | linux-ibm-6.8 |
< 6.8.0-1039.39~22.04.1 |
6.8.0-1039.39~22.04.1 |
| Ubuntu:22.04:LTS | linux-intel-iot-realtime |
All versions |
— |
| Ubuntu:22.04:LTS | linux-intel-iotg |
< 5.15.0-1081.87 |
5.15.0-1081.87 |
| Ubuntu:22.04:LTS | linux-kvm |
< 5.15.0-1082.87 |
5.15.0-1082.87 |
| Ubuntu:22.04:LTS | linux-lowlatency |
< 5.15.0-142.152 |
5.15.0-142.152 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-5.19 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.5 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.8 |
< 6.8.0-86.87.1~22.04.1 |
6.8.0-86.87.1~22.04.1 |
| Ubuntu:22.04:LTS | linux-nvidia |
< 5.15.0-1080.81 |
5.15.0-1080.81 |
| Ubuntu:22.04:LTS | linux-nvidia-6.2 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-nvidia-6.5 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-nvidia-6.8 |
< 6.8.0-1041.44~22.04.2 |
6.8.0-1041.44~22.04.2 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra |
< 5.15.0-1039.39 |
5.15.0-1039.39 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra-igx |
< 5.15.0-1028.28 |
5.15.0-1028.28 |
| Ubuntu:22.04:LTS | linux-oem-5.17 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-oem-6.0 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-oem-6.1 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-oem-6.5 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-oracle |
< 5.15.0-1083.89 |
5.15.0-1083.89 |
| Ubuntu:22.04:LTS | linux-oracle-6.5 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-oracle-6.8 |
< 6.8.0-1038.39~22.04.1 |
6.8.0-1038.39~22.04.1 |
| Ubuntu:22.04:LTS | linux-raspi |
< 5.15.0-1080.83 |
5.15.0-1080.83 |
| Ubuntu:22.04:LTS | linux-realtime |
All versions |
— |
| Ubuntu:22.04:LTS | linux-riscv |
All versions |
— |
| Ubuntu:22.04:LTS | linux-riscv-5.19 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-riscv-6.5 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-riscv-6.8 |
< 6.8.0-86.87~22.04.1 |
6.8.0-86.87~22.04.1 |
| Ubuntu:22.04:LTS | linux-starfive-5.19 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-starfive-6.2 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-starfive-6.5 |
All versions |
— |
| Ubuntu:22.04:LTS | linux-xilinx-zynqmp |
< 5.15.0-1050.54 |
5.15.0-1050.54 |
| Ubuntu:Nvidia-BlueField:22.04:LTS | linux-bluefield |
< 5.15.0-1069.71 |
5.15.0-1069.71 |
| Ubuntu:Pro:FIPS-preview:22.04:LTS | linux-aws-fips |
All versions |
— |
| Ubuntu:Pro:FIPS-preview:22.04:LTS | linux-azure-fips |
All versions |
— |
| Ubuntu:Pro:FIPS-preview:22.04:LTS | linux-fips |
All versions |
— |
| Ubuntu:Pro:FIPS-preview:22.04:LTS | linux-gcp-fips |
All versions |
— |
| Ubuntu:Pro:FIPS-updates:22.04:LTS | linux-aws-fips |
< 5.15.0-1086.93+fips1 |
5.15.0-1086.93+fips1 |
| Ubuntu:Pro:FIPS-updates:22.04:LTS | linux-azure-fips |
< 5.15.0-1091.100+fips1 |
5.15.0-1091.100+fips1 |
| Ubuntu:Pro:FIPS-updates:22.04:LTS | linux-fips |
< 5.15.0-142.152+fips1 |
5.15.0-142.152+fips1 |
| Ubuntu:Pro:FIPS-updates:22.04:LTS | linux-gcp-fips |
< 5.15.0-1085.94+fips1 |
5.15.0-1085.94+fips1 |
| Ubuntu:Pro:Realtime:22.04:LTS | linux-intel-iot-realtime |
< 5.15.0-1079.81 |
5.15.0-1079.81 |
| Ubuntu:Pro:Realtime:22.04:LTS | linux-realtime |
< 5.15.0-1086.95 |
5.15.0-1086.95 |
| Ubuntu:Pro:Realtime:22.04:LTS | linux-realtime-6.8 |
< 6.8.1-1036.37~22.04.1 |
6.8.1-1036.37~22.04.1 |
| Ubuntu:24.04:LTS | linux |
< 6.8.0-86.87 |
6.8.0-86.87 |
| Ubuntu:24.04:LTS | linux-aws |
< 6.8.0-1041.43 |
6.8.0-1041.43 |
| Ubuntu:24.04:LTS | linux-azure |
< 6.8.0-1041.47 |
6.8.0-1041.47 |
| Ubuntu:24.04:LTS | linux-azure-6.11 |
< 6.11.0-1018.18~24.04.1 |
6.11.0-1018.18~24.04.1 |
| Ubuntu:24.04:LTS | linux-azure-fde-6.17 |
All versions |
— |
| Ubuntu:24.04:LTS | linux-azure-nvidia |
< 6.8.0-1029.32 |
6.8.0-1029.32 |
| Ubuntu:24.04:LTS | linux-gcp |
< 6.8.0-1042.45 |
6.8.0-1042.45 |
| Ubuntu:24.04:LTS | linux-gcp-6.11 |
< 6.11.0-1016.16~24.04.1 |
6.11.0-1016.16~24.04.1 |
| Ubuntu:24.04:LTS | linux-gke |
< 6.8.0-1038.43 |
6.8.0-1038.43 |
| Ubuntu:24.04:LTS | linux-gkeop |
< 6.8.0-1025.28 |
6.8.0-1025.28 |
| Ubuntu:24.04:LTS | linux-hwe-6.11 |
< 6.11.0-28.28~24.04.1 |
6.11.0-28.28~24.04.1 |
| Ubuntu:24.04:LTS | linux-ibm |
< 6.8.0-1039.39 |
6.8.0-1039.39 |
| Ubuntu:24.04:LTS | linux-intel |
All versions |
— |
| Ubuntu:24.04:LTS | linux-lowlatency |
< 6.8.0-86.87.1 |
6.8.0-86.87.1 |
| Ubuntu:24.04:LTS | linux-lowlatency-hwe-6.11 |
< 6.11.0-1015.16~24.04.2 |
6.11.0-1015.16~24.04.2 |
| Ubuntu:24.04:LTS | linux-nvidia |
< 6.8.0-1041.44 |
6.8.0-1041.44 |
| Ubuntu:24.04:LTS | linux-nvidia-6.11 |
< 6.11.0-1012.12 |
6.11.0-1012.12 |
| Ubuntu:24.04:LTS | linux-nvidia-lowlatency |
< 6.8.0-1041.44.1 |
6.8.0-1041.44.1 |
| Ubuntu:24.04:LTS | linux-nvidia-tegra |
< 6.8.0-1012.12 |
6.8.0-1012.12 |
| Ubuntu:24.04:LTS | linux-oem-6.11 |
< 6.11.0-1024.24 |
6.11.0-1024.24 |
| Ubuntu:24.04:LTS | linux-oem-6.8 |
All versions |
— |
| Ubuntu:24.04:LTS | linux-oracle |
< 6.8.0-1038.39 |
6.8.0-1038.39 |
| Ubuntu:24.04:LTS | linux-raspi |
< 6.8.0-1041.45 |
6.8.0-1041.45 |
| Ubuntu:24.04:LTS | linux-raspi-realtime |
All versions |
— |
| Ubuntu:24.04:LTS | linux-realtime |
All versions |
— |
| Ubuntu:24.04:LTS | linux-riscv |
All versions |
— |
| Ubuntu:24.04:LTS | linux-xilinx |
< 6.8.0-1018.19 |
6.8.0-1018.19 |
| Ubuntu:Pro:FIPS-updates:24.04:LTS | linux-aws-fips |
< 6.8.0-1041.43+fips1 |
6.8.0-1041.43+fips1 |
| Ubuntu:Pro:FIPS-updates:24.04:LTS | linux-azure-fips |
< 6.8.0-1044.50+fips1 |
6.8.0-1044.50+fips1 |
| Ubuntu:Pro:FIPS-updates:24.04:LTS | linux-fips |
< 6.8.0-86.87+fips1 |
6.8.0-86.87+fips1 |
| Ubuntu:Pro:FIPS-updates:24.04:LTS | linux-gcp-fips |
< 6.8.0-1042.45+fips1 |
6.8.0-1042.45+fips1 |
| Ubuntu:Pro:Realtime:24.04:LTS | linux-raspi-realtime |
< 6.8.0-2032.33 |
6.8.0-2032.33 |
| Ubuntu:Pro:Realtime:24.04:LTS | linux-realtime |
< 6.8.1-1036.37 |
6.8.1-1036.37 |
| Ubuntu:25.10 | linux-azure-fde |
All versions |
— |
| Ubuntu:26.04 | linux-nvidia |
All versions |
— |
| Ubuntu:Nvidia-BlueField:24.04:LTS | linux-bluefield |
< 6.8.0-1012.16 |
6.8.0-1012.16 |
| Ubuntu:Pro:FIPS-updates:16.04:LTS | linux-fips |
All versions |
— |
Original description The description as published by the source.
In the Linux kernel, the following vulnerability has been resolved: netfilter: socket: Lookup orig tuple for IPv6 SNAT nf_sk_lookup_slow_v4 does the conntrack lookup for IPv4 packets to restore the original 5-tuple in case of SNAT, to be able to find the right socket (if any). Then socket_match() can correctly check whether the socket was transparent. However, the IPv6 counterpart (nf_sk_lookup_slow_v6) lacks this conntrack lookup, making xt_socket fail to match on the socket when the packet was SNATed. Add the same logic to nf_sk_lookup_slow_v6. IPv6 SNAT is used in Kubernetes clusters for pod-to-world packets, as pods' addresses are in the fd00::/8 ULA subnet and need to be replaced with the node's external address. Cilium leverages Envoy to enforce L7 policies, and Envoy uses transparent sockets. Cilium inserts an iptables prerouting rule that matches on -m socket --transparent and redirects the packets to localhost, but it fails to match SNATed IPv6 packets due to that missing conntrack lookup.
Source: OSV.dev (Open Source Vulnerabilities) OSV
References
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
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- advisory ubuntu.com
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- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- advisory ubuntu.com
- report ubuntu.com
- report cve.org
- report git.kernel.org
- report git.kernel.org
- report git.kernel.org
- report git.kernel.org
- report git.kernel.org
- report git.kernel.org
- report git.kernel.org
- report git.kernel.org
- report git.kernel.org
- report git.kernel.org