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UBUNTU-CVE-2026-23865
Vulnérabilité dans openjdk-8 (UBUNTU-CVE-2026-23865)
Résumé
vulnérabilité dans openjdk-8 (UBUNTU-CVE-2026-23865). Risque d'opérations non autorisées ou de divulgation. Atténuation : mise à jour vers `8u492-ga~us2-0ubuntu1~16.04.1` ou plus.
Résumé IA snake-internal / snake-material-v2
Une vulnérabilité référencée **UBUNTU-CVE-2026-23865** a été découverte dans openjdk-8.
Risque d'opérations non autorisées ou de divulgation. Score CVSS : ?/10.
Action : mettez à jour openjdk-8 vers **8u492-ga~us2-0ubuntu1~16.04.1** ou supérieur.
En cas de doute, contactez votre service informatique ou cherchez « openjdk-8 UBUNTU-CVE-2026-23865 » sur le site de l'éditeur.
UBUNTU-CVE-2026-23865 (openjdk-8) —
Vecteur d'attaque : local / non authentifié
Correctif : `8u492-ga~us2-0ubuntu1~16.04.1` — 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 openjdk-8.
📍 Périmètre concerné
openjdk-8 — .
🔥 Gravité
Gravité : ?. Risque d'opérations non autorisées ou de divulgation
🔧 Comment corriger
Mettre à jour vers **8u492-ga~us2-0ubuntu1~16.04.1**.
🛡️ 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
-
1Identify exposure identify
grep -r 'openjdk-8' . | 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 `openjdk-8` 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 openjdk-8 to 8u492-ga~us2-0ubuntu1~16.04.1ステージング環境で 8u492-ga~us2-0ubuntu1~16.04.1 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。
Paquets affectés
Ubuntu:Pro:16.04:LTS
openjdk-8
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8u492-ga~us2-0ubuntu1~16.04.1"}]}]
Ubuntu:16.04:LTS
openjdk-9
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:18.04:LTS
openjdk-lts
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"11.0.31+11-1ubuntu1~18.04.2"}]}]
Ubuntu:Pro:18.04:LTS
openjdk-17
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"17.0.19+10-1~18.04.2"}]}]
Ubuntu:Pro:18.04:LTS
openjdk-8
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8u492-ga~us2-0ubuntu1~18.04.1"}]}]
Ubuntu:Pro:20.04:LTS
openjdk-lts
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"11.0.31+11-1ubuntu1~20.04.2"}]}]
Ubuntu:20.04:LTS
openjdk-13
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:20.04:LTS
openjdk-16
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:20.04:LTS
openjdk-17
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"17.0.19+10-1~20.04.2"}]}]
Ubuntu:Pro:20.04:LTS
openjdk-21
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"21.0.11+10-1~20.04.2"}]}]
Ubuntu:Pro:20.04:LTS
openjdk-8
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8u492-ga~us2-0ubuntu1~20.04.1"}]}]
Ubuntu:22.04:LTS
openjdk-17
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"17.0.19+10-1~22.04.2"}]}]
Ubuntu:22.04:LTS
openjdk-18
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS
openjdk-21
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"21.0.11+10-1~22.04.2"}]}]
Ubuntu:22.04:LTS
openjdk-25
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"25.0.3+9-2~22.04.2"}]}]
Ubuntu:22.04:LTS
openjdk-8
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8u492-ga~us2-0ubuntu1~22.04.1"}]}]
Ubuntu:22.04:LTS
openjdk-lts
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"11.0.31+11-1ubuntu1~22.04.2"}]}]
Ubuntu:24.04:LTS
freetype
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.13.2+dfsg-1ubuntu0.1"}]}]
Ubuntu:24.04:LTS
openjdk-17
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"17.0.19+10-1~24.04.2"}]}]
Ubuntu:24.04:LTS
openjdk-21
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"21.0.11+10-1~24.04.2"}]}]
Ubuntu:24.04:LTS
openjdk-25
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"25.0.3+9-2~24.04.2"}]}]
Ubuntu:24.04:LTS
openjdk-8
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8u492-ga~us2-0ubuntu1~24.04.1"}]}]
Ubuntu:Pro:24.04:LTS
openjdk-lts
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:25.10
freetype
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.13.3+dfsg-1ubuntu0.1"}]}]
Ubuntu:25.10
openjdk-17
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"17.0.19+10-1~25.10.2"}]}]
Ubuntu:25.10
openjdk-17-crac
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"17.0.19+10-0ubuntu1~25.10.1"}]}]
Ubuntu:25.10
openjdk-21
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"21.0.11+10-1~25.10.2"}]}]
Ubuntu:25.10
openjdk-21-crac
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"21.0.11+10-0ubuntu1~25.10.1"}]}]
Ubuntu:25.10
openjdk-25
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"25.0.3+9-2~25.10.2"}]}]
Ubuntu:25.10
openjdk-8
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8u492-ga~us2-0ubuntu1~25.10.1"}]}]
Ubuntu:25.10
openjdk-lts
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"11.0.31+11-1ubuntu1~25.10.2"}]}]
Ubuntu:26.04:LTS
openjdk-17
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"17.0.19+10-1~26.04.2"}]}]
Ubuntu:26.04:LTS
openjdk-17-crac
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"17.0.19+10-0ubuntu1~26.04.1"}]}]
Ubuntu:26.04:LTS
openjdk-21
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"21.0.11+10-1~26.04.2"}]}]
Ubuntu:26.04:LTS
openjdk-21-crac
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"21.0.11+10-0ubuntu1~26.04.1"}]}]
Ubuntu:26.04:LTS
openjdk-25
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"25.0.3+9-2~26.04.2"}]}]
Ubuntu:26.04:LTS
openjdk-8
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8u492-ga~us2-0ubuntu1~26.04.1"}]}]
Ubuntu:26.04:LTS
openjdk-lts
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"11.0.31+11-1ubuntu1~26.04.2"}]}]
Ubuntu:24.04:LTS
openjdk-lts
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"11.0.31+11-1ubuntu1~24.04.2"}]}]
Ubuntu:25.10
openjdk-25-crac
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"25.0.3+9-0ubuntu1~25.10.1"}]}]
Ubuntu:25.10
openjdk-26
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"26.0.1+8-2~25.10.2"}]}]
Ubuntu:26.04:LTS
openjdk-25-crac
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"25.0.3+9-0ubuntu1~26.04.1"}]}]
Ubuntu:26.04:LTS
openjdk-26
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"26.0.1+8-2~26.04.2"}]}]
Références
- advisory https://ubuntu.com/security/notices/USN-8086-1
- advisory https://ubuntu.com/security/notices/USN-8330-1
- advisory https://ubuntu.com/security/notices/USN-8331-1
- advisory https://ubuntu.com/security/notices/USN-8332-1
- advisory https://ubuntu.com/security/notices/USN-8333-1
- advisory https://ubuntu.com/security/notices/USN-8334-1
- advisory https://ubuntu.com/security/notices/USN-8327-1
- advisory https://ubuntu.com/security/notices/USN-8328-1
- advisory https://ubuntu.com/security/notices/USN-8339-1
- advisory https://ubuntu.com/security/notices/USN-8341-1
- report https://ubuntu.com/security/CVE-2026-23865
- report https://www.cve.org/CVERecord?id=CVE-2026-23865
- report https://sourceforge.net/projects/freetype/files/freetype2/2.14.2/
- report https://www.facebook.com/security/advisories/cve-2026-23865