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LSN-0118-1
Vulnerability in linux-hwe-5.4 (LSN-0118-1)
Summary
vulnerability in linux-hwe-5.4 (LSN-0118-1). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to `5.4.0-225.245~18.04.1` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **LSN-0118-1** has been found in linux-hwe-5.4.
Risk of unauthorized operations or information disclosure. CVSS score: ?/10.
What to do: upgrade linux-hwe-5.4 to **5.4.0-225.245~18.04.1** or later.
If unsure, ask your IT team or search "linux-hwe-5.4 LSN-0118-1" on the vendor's site.
LSN-0118-1 (linux-hwe-5.4) —
Patched: `5.4.0-225.245~18.04.1` — 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-hwe-5.4.
📍 Affected scope
linux-hwe-5.4 — .
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **5.4.0-225.245~18.04.1**.
🛡️ 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-hwe-5.4' .` against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'linux-hwe-5.4' . | 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-hwe-5.4` を grep し、稼働しているサービス・バージョンを把握する。
-
6Apply patch patch
Upgrade linux-hwe-5.4 to 5.4.0-225.245~18.04.1ステージング環境で 5.4.0-225.245~18.04.1 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と、Step 3 で見つけた異常検知の続報チェックを含めること。
-
7Post-deployment verification verify
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 Step 3 と同じログクエリでアラート再発が無いか継続監視。
Affected packages
Ubuntu:Pro:18.04:LTS
linux-hwe-5.4
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-225.245~18.04.1"}]}]
Ubuntu:Pro:20.04:LTS
linux-aws-5.15
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1099.106~20.04.1"}]}]
Ubuntu:Pro:20.04:LTS
linux-aws
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-1154.164"}]}]
Ubuntu:Pro:20.04:LTS
linux-azure-5.15
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1103.112~20.04.1"}]}]
Ubuntu:Pro:20.04:LTS
linux-gcp-5.15
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1099.108~20.04.1"}]}]
Ubuntu:Pro:20.04:LTS
linux-hwe-5.15
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-168.178~20.04.1"}]}]
Ubuntu:Pro:20.04:LTS
linux-lowlatency-hwe-5.15
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-168.178~20.04.1"}]}]
Ubuntu:Pro:20.04:LTS
linux
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-225.245"}]}]
Ubuntu:Pro:20.04:LTS
linux-ibm-5.15
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1093.96~20.04.1"}]}]
Ubuntu:Pro:20.04:LTS
linux-oracle-5.15
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1096.102~20.04.1"}]}]
Ubuntu:Pro:22.04:LTS
linux-aws
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1099.106"}]}]
Ubuntu:Pro:22.04:LTS
linux-aws-6.8
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.8.0-1046.49~22.04.1"}]}]
Ubuntu:Pro:22.04:LTS
linux-azure
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1103.112"}]}]
Ubuntu:Pro:22.04:LTS
linux-gcp
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1099.108"}]}]
Ubuntu:Pro:22.04:LTS
linux-gcp-6.8
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.8.0-1047.50~22.04.2"}]}]
Ubuntu:Pro:22.04:LTS
linux
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-168.178"}]}]
Ubuntu:Pro:22.04:LTS
linux-gke
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1095.101"}]}]
Ubuntu:Pro:22.04:LTS
linux-ibm
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1093.96"}]}]
Ubuntu:Pro:22.04:LTS
linux-ibm-6.8
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.8.0-1044.44~22.04.1"}]}]
Ubuntu:Pro:22.04:LTS
linux-oracle
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1096.102"}]}]
Ubuntu:Pro:24.04:LTS
linux-aws
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.8.0-1046.49"}]}]
Ubuntu:Pro:24.04:LTS
linux-azure
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.8.0-1046.52"}]}]
Ubuntu:Pro:24.04:LTS
linux-gcp
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.8.0-1047.50"}]}]
Ubuntu:Pro:24.04:LTS
linux
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.8.0-100.100"}]}]
Ubuntu:Pro:24.04:LTS
linux-ibm
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.8.0-1044.44"}]}]
Ubuntu:Pro:24.04:LTS
linux-oracle
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.8.0-1043.44"}]}]
Ubuntu:Pro:25.10
linux
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.17.0-12.12"}]}]
References
- advisory https://ubuntu.com/security/notices/LSN-0118-1
- report https://ubuntu.com/security/CVE-2024-50047
- report https://ubuntu.com/security/CVE-2025-21726
- report https://ubuntu.com/security/CVE-2025-22036
- report https://ubuntu.com/security/CVE-2025-38488
- report https://ubuntu.com/security/CVE-2025-38561
- report https://ubuntu.com/security/CVE-2025-39698
- report https://ubuntu.com/security/CVE-2025-40214