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LSN-0099-1

Vulnerability in linux-lts-xenial (LSN-0099-1)

Summary

vulnerability in linux-lts-xenial (LSN-0099-1). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to `4.4.0-246.280~14.04.1` or later.

AI summary snake-internal / snake-material-v2

A vulnerability tracked as **LSN-0099-1** 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 **4.4.0-246.280~14.04.1** or later. If unsure, ask your IT team or search "linux-lts-xenial LSN-0099-1" on the vendor's site.

LSN-0099-1 (linux-lts-xenial) — Patched: `4.4.0-246.280~14.04.1` — 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 **4.4.0-246.280~14.04.1**.

🛡️ 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 4.4.0-246.280~14.04.1
```
ステージング環境で 4.4.0-246.280~14.04.1 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":"4.4.0-246.280~14.04.1"}]}]

Ubuntu:Pro:16.04:LTS linux-aws

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-1162.177"}]}]

Ubuntu:Pro:16.04:LTS linux-azure

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-1171.186~16.04.1"}]}]

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

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-1162.175~16.04.1"}]}]

Ubuntu:Pro:16.04:LTS linux-hwe

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-219.230~16.04.1"}]}]

Ubuntu:Pro:16.04:LTS linux

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-246.280"}]}]

Ubuntu:Pro:16.04:LTS linux-gcp

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-1156.173~16.04.1"}]}]

Ubuntu:Pro:18.04:LTS linux-aws

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-1162.175"}]}]

Ubuntu:Pro:18.04:LTS linux-aws-5.4

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-1112.121~18.04.2"}]}]

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

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-1171.186"}]}]

Ubuntu:Pro:18.04:LTS linux-azure-5.4

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-1118.125~18.04.1"}]}]

Ubuntu:Pro:18.04:LTS linux

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-219.230"}]}]

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

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.0-1156.173"}]}]

Ubuntu:Pro:18.04:LTS linux-gcp-5.4

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-1116.125~18.04.1"}]}]

Ubuntu:Pro:18.04:LTS linux-ibm-5.4

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-1059.64~18.04.1"}]}]

Ubuntu:Pro:18.04:LTS linux-hwe-5.4

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-165.182~18.04.1"}]}]

Ubuntu:Pro:20.04:LTS linux-aws

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-1112.121"}]}]

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

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1048.53~20.04.1"}]}]

Ubuntu:Pro:20.04:LTS linux-azure

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-1118.125"}]}]

Ubuntu:Pro:20.04:LTS linux

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-165.182"}]}]

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

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1045.53~20.04.2"}]}]

Ubuntu:Pro:20.04:LTS linux-gcp

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-1116.125"}]}]

Ubuntu:Pro:20.04:LTS linux-gke

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-1100.107"}]}]

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

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1034.39~20.04.1"}]}]

Ubuntu:Pro:20.04:LTS linux-gkeop

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-1079.83"}]}]

Ubuntu:Pro:20.04:LTS linux-ibm

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-1059.64"}]}]

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

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1041.44~20.04.1"}]}]

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

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-87.97~20.04.1"}]}]

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

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-87.96~20.04.1"}]}]

Ubuntu:Pro:22.04:LTS linux-aws

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1048.53"}]}]

Ubuntu:Pro:22.04:LTS linux-aws-6.2

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.2.0-1014.14~22.04.1"}]}]

Ubuntu:Pro:22.04:LTS linux-azure

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1050.57"}]}]

Ubuntu:Pro:22.04:LTS linux-azure-6.2

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.2.0-1015.15~22.04.1"}]}]

Ubuntu:Pro:22.04:LTS linux-gcp

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1045.53"}]}]

Ubuntu:Pro:22.04:LTS linux-gcp-6.2

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.2.0-1017.19~22.04.1"}]}]

Ubuntu:Pro:22.04:LTS linux-gke

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1045.50"}]}]

Ubuntu:Pro:22.04:LTS linux-hwe-6.2

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.2.0-35.35~22.04.1"}]}]

Ubuntu:Pro:22.04:LTS linux-ibm

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-1041.44"}]}]

Ubuntu:Pro:22.04:LTS linux

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.0-87.97"}]}]

References

advisory https://ubuntu.com/security/notices/LSN-0099-1
report https://ubuntu.com/security/CVE-2023-3995
report https://ubuntu.com/security/CVE-2023-4881
report https://ubuntu.com/security/CVE-2022-3643
report https://ubuntu.com/security/CVE-2023-3567
report https://ubuntu.com/security/CVE-2023-3609
report https://ubuntu.com/security/CVE-2023-3776
report https://ubuntu.com/security/CVE-2023-3777
report https://ubuntu.com/security/CVE-2023-4004
report https://ubuntu.com/security/CVE-2023-4622
report https://ubuntu.com/security/CVE-2023-4623
report https://ubuntu.com/security/CVE-2023-5197
report https://ubuntu.com/security/CVE-2023-31436
report https://ubuntu.com/security/CVE-2023-34319
report https://ubuntu.com/security/CVE-2023-40283
report https://ubuntu.com/security/CVE-2023-42752
report https://ubuntu.com/security/CVE-2023-42753