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LSN-0114-1

Vulnerability in linux-lts-xenial (LSN-0114-1)

Summary

vulnerability in linux-lts-xenial (LSN-0114-1). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to `4.4.0-271.305~14.04.1` or later.

AI summary snake-internal / snake-material-v2

A vulnerability tracked as **LSN-0114-1** has been found in linux-lts-xenial. Risk of unauthorized operations or information disclosure. CVSS score: ?/10. What to do: upgrade linux-lts-xenial to **4.4.0-271.305~14.04.1** or later. If unsure, ask your IT team or search "linux-lts-xenial LSN-0114-1" on the vendor's site.

LSN-0114-1 (linux-lts-xenial) — Patched: `4.4.0-271.305~14.04.1` — 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-lts-xenial.

📍 Affected scope

linux-lts-xenial — .

🔥 Severity

Severity: ?. Risk of unauthorized operations or information disclosure

🔧 How to fix

Update to **4.4.0-271.305~14.04.1**.

🛡️ 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-lts-xenial' .` 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

1
Identify exposure identify
```
grep -r 'linux-lts-xenial' . | 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-lts-xenial` を grep し、稼働しているサービス・バージョンを把握する。
6
Apply patch patch
```
Upgrade linux-lts-xenial to 4.4.0-271.305~14.04.1
```
ステージング環境で 4.4.0-271.305~14.04.1 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。
7
Post-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:14.04:LTS linux-lts-xenial

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-271.305~14.04.1"}]}]

Ubuntu:Pro:16.04:LTS linux-aws-hwe

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-1183.196~16.04.1"}]}]

Ubuntu:Pro:16.04:LTS linux-aws

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-1184.199"}]}]

Ubuntu:Pro:16.04:LTS linux-azure

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-1191.206~16.04.1"}]}]

Ubuntu:Pro:16.04:LTS linux-gcp

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-1176.193~16.04.1"}]}]

Ubuntu:Pro:16.04:LTS linux-hwe

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-240.252~16.04.1"}]}]

Ubuntu:Pro:16.04:LTS linux

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-271.305"}]}]

Ubuntu:Pro:18.04:LTS linux-aws

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-1183.196"}]}]

Ubuntu:Pro:18.04:LTS linux-azure-4.15

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-1191.206"}]}]

Ubuntu:Pro:18.04:LTS linux-gcp-4.15

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-1176.193"}]}]

Ubuntu:Pro:18.04:LTS linux

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-240.252"}]}]

Ubuntu:Pro:18.04:LTS linux-oracle

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-1145.156"}]}]

Ubuntu:Pro:20.04:LTS linux-aws-5.15

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1084.91~20.04.1"}]}]

Ubuntu:Pro:20.04:LTS linux-azure-5.15

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1089.98~20.04.1"}]}]

Ubuntu:Pro:20.04:LTS linux-gcp-5.15

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1083.92~20.04.1"}]}]

Ubuntu:Pro:20.04:LTS linux-hwe-5.15

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-142.152~20.04.1"}]}]

Ubuntu:Pro:20.04:LTS linux-lowlatency-hwe-5.15

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-140.150~20.04.1"}]}]

Ubuntu:Pro:20.04:LTS linux-ibm-5.15

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1076.79~20.04.1"}]}]

Ubuntu:Pro:20.04:LTS linux-oracle-5.15

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1081.87~20.04.1"}]}]

Ubuntu:Pro:22.04:LTS linux-aws

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1084.91"}]}]

Ubuntu:Pro:22.04:LTS linux-azure

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1089.98"}]}]

Ubuntu:Pro:22.04:LTS linux-gcp

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1083.92"}]}]

Ubuntu:Pro:22.04:LTS linux

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-140.150"}]}]

Ubuntu:Pro:22.04:LTS linux-gke

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1081.87"}]}]

Ubuntu:Pro:22.04:LTS linux-ibm

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1076.79"}]}]

Ubuntu:Pro:22.04:LTS linux-oracle

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1081.87"}]}]

Ubuntu:Pro:24.04:LTS linux-aws

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.8.0-1036.38"}]}]

Ubuntu:Pro:24.04:LTS linux-azure

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.8.0-1038.44"}]}]

Ubuntu:Pro:24.04:LTS linux-gcp

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.8.0-1037.39"}]}]

Ubuntu:Pro:24.04:LTS linux

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.8.0-79.79"}]}]

Ubuntu:Pro:24.04:LTS linux-ibm

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.8.0-1036.36"}]}]

Ubuntu:Pro:24.04:LTS linux-oracle

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.8.0-1033.34"}]}]

References

advisory https://ubuntu.com/security/notices/LSN-0114-1
report https://ubuntu.com/security/CVE-2022-49909
report https://ubuntu.com/security/CVE-2022-49176
report https://ubuntu.com/security/CVE-2022-49179
report https://ubuntu.com/security/CVE-2023-52885
report https://ubuntu.com/security/CVE-2024-49883
report https://ubuntu.com/security/CVE-2024-53197
report https://ubuntu.com/security/CVE-2025-21887
report https://ubuntu.com/security/CVE-2025-22088