Vulnérabilité dans linux-raspi (USN-7003-4)

Résumé

vulnérabilité dans linux-raspi (USN-7003-4). Risque d'opérations non autorisées ou de divulgation. Atténuation : mise à jour vers `5.4.0-1116.128` ou plus.

Résumé IA snake-internal / snake-material-v2

Une vulnérabilité référencée **USN-7003-4** a été découverte dans linux-raspi. Risque d'opérations non autorisées ou de divulgation. Score CVSS : ?/10. Action : mettez à jour linux-raspi vers **5.4.0-1116.128** ou supérieur. En cas de doute, contactez votre service informatique ou cherchez « linux-raspi USN-7003-4 » sur le site de l'éditeur.

USN-7003-4 (linux-raspi) — Correctif : `5.4.0-1116.128` — appliquer immédiatement Plan : 1) Audit SBOM, 2) Mise à jour staging→prod, 3) Surveillance WAF/proxy sur les endpoints affectés, 4) Recherche d'IOC dans les logs. Réfs : voir GHSA / avis éditeur / version corrigée liés sur cette page.

❓ Quel est le problème

Une **vulnérabilité** (non classée) affecte linux-raspi.

📍 Périmètre concerné

linux-raspi — .

🔥 Gravité

Gravité : ?. Risque d'opérations non autorisées ou de divulgation

🔧 Comment corriger

Mettre à jour vers **5.4.0-1116.128**.

🛡️ Contournement

En attendant le correctif : désactivez la fonctionnalité concernée, appliquez des règles WAF, ou restreignez l'accès par ACL réseau.

🔍 Détection

Recherchez dans les logs des requêtes correspondant aux IOC connus de cette CVE. Auditez les SBOM/dépendances.

Actions de réponse (7 étapes)

Étapes concrètes et exemples de commandes que les équipes SOC/SRE doivent exécuter dans l'ordre

1
Identify exposure identify
```
grep -r 'linux-raspi' . | 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-raspi` 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-raspi to 5.4.0-1116.128
```
ステージング環境で 5.4.0-1116.128 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。

Paquets affectés

Ubuntu:20.04:LTS linux-raspi

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-1116.128"}]}]

Références

advisory https://ubuntu.com/security/notices/USN-7003-4
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