{"item": {"cve_id": "CVE-2023-0386", "ghsa_id": "", "osv_id": "", "title": "CVE-2023-0386", "description": "A flaw was found in the Linux kernel, where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allows a local user to escalate their privileges on the system.", "published_at": "2023-03-22T21:15:18.090", "modified_at": "2026-06-17T05:25:25.427", "vendor": "Debian", "product": "Debian Linux", "affected_versions": ["Linux kernel 6.2-rc6"], "fixed_versions": [], "cvss_score": 7.8, "cvss_version": "3.1", "cvss_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "severity": "HIGH", "epss_score": 0.0788, "epss_percentile": 0.94565, "epss_date": "2026-10-07", "is_kev": true, "kev_date": "2025-06-17", "kev_due_date": "2025-07-08", "kev_action": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.", "cwe_ids": ["CWE-282"], "attack_vector": "LOCAL", "attack_complexity": "LOW", "privileges_required": "LOW", "user_interaction": "NONE", "references": ["http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html", "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4f11ada10d0a", "https://lists.debian.org/debian-lts-announce/2023/06/msg00008.html", "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html", "https://security.netapp.com/advisory/ntap-20230420-0004/", "https://www.debian.org/security/2023/dsa-5402", "http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html", "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4f11ada10d0a", "https://lists.debian.org/debian-lts-announce/2023/06/msg00008.html", "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html", "https://security.netapp.com/advisory/ntap-20230420-0004/", "https://www.debian.org/security/2023/dsa-5402", "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-0386"], "source_urls": {"NVD": "https://nvd.nist.gov/vuln/detail/CVE-2023-0386", "CVE.org": "https://www.cve.org/CVERecord?id=CVE-2023-0386", "CISA": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-0386", "FIRST EPSS": "https://api.first.org/data/v1/epss?cve=CVE-2023-0386"}, "patch_available": null, "workaround_available": null, "sources": ["NVD", "CVE.org", "CISA", "FIRST EPSS"], "reference_items": [{"url": "http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html", "tags": ["Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4f11ada10d0a", "tags": ["Broken Link", "Mailing List", "Patch", "Vendor Advisory"], "source": "NVD", "name": ""}, {"url": "https://lists.debian.org/debian-lts-announce/2023/06/msg00008.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html", "tags": ["Mailing List", "Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "https://security.netapp.com/advisory/ntap-20230420-0004/", "tags": ["Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "https://www.debian.org/security/2023/dsa-5402", "tags": ["Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html", "tags": ["Third Party Advisory", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4f11ada10d0a", "tags": ["Broken Link", "Mailing List", "Patch", "Vendor Advisory", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://lists.debian.org/debian-lts-announce/2023/06/msg00008.html", "tags": ["Mailing List", "Third Party Advisory", "mailing-list", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html", "tags": ["Mailing List", "Third Party Advisory", "mailing-list", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://security.netapp.com/advisory/ntap-20230420-0004/", "tags": ["Third Party Advisory", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://www.debian.org/security/2023/dsa-5402", "tags": ["Third Party Advisory", "vendor-advisory", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-0386", "tags": ["US Government Resource", "government-resource"], "source": "NVD", "name": ""}], "cvss_v4_score": null, "cvss_v4_vector": "", "cvss_v4_severity": "", "nvd_status": "Analyzed", "cna": "redhat", "date_reserved": "2023-01-18T00:00:00.000Z", "ssvc": {"options": {"Exploitation": "active", "Automatable": "no", "Technical Impact": "total"}, "version": "2.0.3", "timestamp": "2025-07-17T03:55:31.499341Z", "role": "CISA Coordinator"}, "affected_products": [{"vendor": "Debian", "product": "Debian Linux", "ranges": ["10.0"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Netapp", "product": "h300s Firmware", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Netapp", "product": "h500s Firmware", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Netapp", "product": "h700s Firmware", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Netapp", "product": "h410s Firmware", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Netapp", "product": "h410c Firmware", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Canonical", "product": "Ubuntu Linux", "ranges": ["18.04", "20.04", "22.04"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Linux", "product": "Linux Kernel", "ranges": ["de 5.11 à 5.15.91 (exclue)", "de 5.16 à 6.1.9 (exclue)", "6.2"], "first_unaffected": ["5.15.91", "6.1.9"], "source": "NVD"}, {"vendor": "n/a", "product": "Kernel", "ranges": ["Linux kernel 6.2-rc6"], "first_unaffected": [], "source": "CVE.org"}], "kev_name": "Linux Kernel Improper Ownership Management Vulnerability", "kev_short_description": "Linux Kernel contains an improper ownership management vulnerability, where unauthorized access to the execution of the setuid file with capabilities was found in the Linux kernel’s OverlayFS subsystem in how a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allows a local user to escalate their privileges on the system.", "kev_ransomware": "Unknown", "kev_notes": "This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. For more information, please see: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4f11ada10d0a ; https://access.redhat.com/security/cve/cve-2023-0386 ; https://security.netapp.com/advisory/ntap-20230420-0004/ ; https://nvd.nist.gov/vuln/detail/CVE-2023-0386", "kev_cwes": ["CWE-282"], "wordfence_id": "", "mentions_sources": [], "version_match": "unknown", "risk_score": 57, "risk_class": "Important", "impact": {"confidentialite": "élevé", "integrite": "élevé", "disponibilite": "élevé", "summary": "Un attaquant exploitant cette vulnérabilité pourrait, selon les conditions décrites par les sources, nécessite un accès local, avec des privilèges existants, affecter la confidentialité des données, l'intégrité du système et la disponibilité du service.", "basis": "CVSS 3.1"}, "mechanism": "", "mitigation": {"correction": {"available": true, "text": "Mettre à jour : selon les sources, ne sont plus concernées les versions à partir de Linux Kernel 5.15.91, Linux Kernel 6.1.9."}, "mitigation": {"specific": "Aucune mesure de mitigation spécifique confirmée par les sources consultées. Consultez les références officielles pour d'éventuelles mesures détaillées.", "general": ["Maintenir le produit à jour et activer les mises à jour de sécurité.", "Restreindre l'exposition réseau du service au strict nécessaire.", "Appliquer le principe du moindre privilège.", "Surveiller les journaux et les alertes de sécurité."], "specific_links": []}, "containment": {"applicable": true, "actions": ["Action recommandée par la CISA : Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.", "Isoler ou restreindre l'accès au service concerné.", "Restreindre les flux réseau entrants/sortants liés au composant.", "Renforcer la surveillance des journaux et des accès.", "Désactiver temporairement le composant vulnérable si l'activité le permet."]}, "note": "Priorité aux consignes officielles de l'éditeur et des références. Vérifiez toujours l'avis de sécurité avant toute intervention en production.", "official_links": []}, "plain": {"verdict": "now", "verdict_label": "Exploité par des attaquants · à traiter aujourd'hui", "verdict_css": "now", "verdict_rank": 0, "headline": "Faille de sécurité signalée dans Debian Linux", "headline_is_derived": false, "action": "Action officielle recommandée par la CISA : Appliquer les mesures de contournement indiquées par l'éditeur, suivre les consignes applicables aux services en nuage ; à défaut, cesser d'utiliser le produit.", "action_kind": "official", "concerned": [{"version": "Linux kernel 6.2-rc6", "state": "hit", "state_label": "Concerné", "todo": "Action officielle recommandée par la CISA : Appliquer les mesures de contournement indiquées par l'éditeur, suivre les consignes applicables aux services en nuage ; à défaut, cesser d'utiliser le produit."}, {"version": "Je ne connais pas ma version", "state": "unknown", "state_label": "À vérifier", "todo": "La version s'affiche généralement dans le menu « À propos » ou « Aide » du logiciel."}], "steps": [{"title": "Sauvegarder avant d'intervenir", "detail": "Une copie récente des données et de la configuration. Si votre hébergeur propose une sauvegarde en un clic, c'est le moment.", "duration": "10 min", "priority": false}, {"title": "Action officielle recommandée par la CISA : Appliquer les mesures de contournement indiquées par l'éditeur, suivre les consignes applicables aux services en nuage ; à défaut, cesser d'utiliser le produit", "detail": "C'est la correction officielle. Tant qu'elle n'est pas appliquée, les autres mesures ne sont que temporaires.", "duration": "15 à 45 min", "priority": true}, {"title": "En attendant : restreindre l'accès à l'appareil", "detail": "L'exploitation demande un accès local à la machine. Limiter qui peut s'y connecter suffit à contenir le risque immédiat.", "duration": "20 min", "priority": false}, {"title": "Vérifier que vous n'avez pas déjà été touché", "detail": "Cette faille est activement exploitée. Contrôler les comptes créés récemment, les connexions inhabituelles et les fichiers modifiés depuis la date de publication.", "duration": "30 min", "priority": true}, {"title": "Confirmer que tout fonctionne encore", "detail": "Après correction : page d'accueil, connexion, et les deux ou trois fonctions dont vous vous servez tous les jours.", "duration": "10 min", "priority": false}], "exploited": true, "exploited_label": "Oui, des attaques réelles sont constatées", "fixed_label": "Correctif non identifié dans les sources", "affected_label": "Linux kernel 6.2-rc6"}, "severity_display": "Élevée", "cvss_is_legacy": false, "risk_score_computable": true, "identifier": "CVE-2023-0386", "severity_fr": "Élevée", "epss_pct": 7.9, "source_records": [{"source": "NVD", "label": "NVD, NIST", "date_label": "Publié dans la base", "date": "2023-03-22", "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-0386"}, {"source": "CVE.org", "label": "CVE.org, programme CVE", "date_label": "Publié par l'organisme CNA", "date": "2023-03-22", "url": "https://www.cve.org/CVERecord?id=CVE-2023-0386"}, {"source": "CISA", "label": "CISA KEV", "date_label": "Ajout au catalogue", "date": "2025-06-17", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-0386"}, {"source": "FIRST EPSS", "label": "FIRST EPSS", "date_label": "Score daté du", "date": "2026-10-07", "url": "https://api.first.org/data/v1/epss?cve=CVE-2023-0386"}], "exploit_public": false, "reseau_sans_auth": false, "exposition": "Avec un accès à la machine", "owasp": [{"code": "A01", "nom": "Contrôle d'accès défaillant", "nom_officiel": "Broken Access Control", "slug": "a01-controle-d-acces-defaillant", "libelle": "A01:2025 Contrôle d'accès défaillant", "url_officielle": "https://top10.owasp.org/2025/A01_2025-Broken_Access_Control/"}]}, "presentation": {"en_bref": [{"question": "Est-elle attaquée ?", "ton": "alerte", "reponse": "Oui, attaques constatées", "source": "Catalogue CISA KEV"}, {"question": "Existe-t-il un correctif ?", "ton": "bon", "reponse": "Oui : 5.15.91, 6.1.9", "source": "Versions publiées comme non concernées"}, {"question": "Comment l'attaquer ?", "ton": "neutre", "reponse": "Avec un accès à la machine", "source": "Vecteur CVSS publié"}, {"question": "Risque d'exploitation", "ton": "vigilance", "reponse": "7,9 % sur 30 jours", "source": "Plus probable que 95 % des failles connues"}], "references": [{"cle": "correctif", "titre": "Correctifs et versions corrigées", "explication": "Les pages que les sources désignent comme correctif ou notes de version.", "items": [{"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4f11ada10d0a", "domaine": "git.kernel.org", "editeur": "", "etiquettes": ["Lien signalé cassé", "Liste de diffusion", "Correctif", "Avis de l'éditeur"], "nom": "", "lien": true, "casse": true}]}, {"cle": "avis_tiers", "titre": "Avis d'autorités et d'organismes tiers", "explication": "CERT, agences gouvernementales, bases de vulnérabilités, chercheurs.", "items": [{"url": "http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html", "domaine": "packetstormsecurity.com", "editeur": "Packet Storm", "etiquettes": ["Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://lists.debian.org/debian-lts-announce/2023/06/msg00008.html", "domaine": "lists.debian.org", "editeur": "Debian", "etiquettes": ["Liste de diffusion", "Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html", "domaine": "lists.debian.org", "editeur": "Debian", "etiquettes": ["Liste de diffusion", "Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://security.netapp.com/advisory/ntap-20230420-0004/", "domaine": "security.netapp.com", "editeur": "NetApp", "etiquettes": ["Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://www.debian.org/security/2023/dsa-5402", "domaine": "www.debian.org", "editeur": "Debian", "etiquettes": ["Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-0386", "domaine": "www.cisa.gov", "editeur": "CISA", "etiquettes": ["Ressource gouvernementale américaine", "Ressource gouvernementale"], "nom": "", "lien": true, "casse": false}]}], "liens_correction": [], "nb_exploits": 0, "cvss": {"version": "3.1", "vecteur": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "metriques": [{"code": "AV", "nom": "Vecteur d'attaque", "valeur": "Local (accès à la machine)", "brut": "L", "explication": "D'où l'attaquant doit agir."}, {"code": "AC", "nom": "Complexité de l'attaque", "valeur": "Faible", "brut": "L", "explication": "Conditions hors du contrôle de l'attaquant."}, {"code": "PR", "nom": "Privilèges requis", "valeur": "Faibles (compte ordinaire)", "brut": "L", "explication": "Droits dont l'attaquant a besoin avant d'attaquer."}, {"code": "UI", "nom": "Interaction de l'utilisateur", "valeur": "Aucune", "brut": "N", "explication": "Une victime doit-elle cliquer ou ouvrir quelque chose ?"}, {"code": "S", "nom": "Portée", "valeur": "Inchangée", "brut": "U", "explication": "L'attaque peut-elle toucher d'autres composants que celui qui est vulnérable ?"}, {"code": "C", "nom": "Confidentialité", "valeur": "Élevé", "brut": "H", "explication": "Accès à des informations protégées."}, {"code": "I", "nom": "Intégrité", "valeur": "Élevé", "brut": "H", "explication": "Modification de données ou du système."}, {"code": "A", "nom": "Disponibilité", "valeur": "Élevé", "brut": "H", "explication": "Arrêt ou ralentissement du service."}], "calculateur": "https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "specification": "https://www.first.org/cvss/v3.1/specification-document"}, "cvss4": null, "cwe": [{"id": "CWE-282", "nom": "", "url": "https://cwe.mitre.org/data/definitions/282.html"}], "owasp": [{"code": "A01", "nom": "Contrôle d'accès défaillant", "nom_officiel": "Broken Access Control", "slug": "a01-controle-d-acces-defaillant", "libelle": "A01:2025 Contrôle d'accès défaillant", "url_officielle": "https://top10.owasp.org/2025/A01_2025-Broken_Access_Control/"}], "ssvc": {"lignes": [{"nom": "Exploitation", "valeur": "Exploitation active constatée", "brut": "active"}, {"nom": "Automatisable", "valeur": "Non : l'attaque ne peut pas être entièrement automatisée", "brut": "no"}, {"nom": "Impact technique", "valeur": "Total : contrôle complet du composant ou de ses informations", "brut": "total"}], "version": "2.0.3", "date": "2025-07-17", "role": "CISA Coordinator", "url": "https://www.cisa.gov/stakeholder-specific-vulnerability-categorization-ssvc"}, "chronologie": [{"date": "2023-01-18", "libelle": "Identifiant réservé", "qui": "Programme CVE"}, {"date": "2023-03-22", "libelle": "Publication de la vulnérabilité", "qui": "redhat"}, {"date": "2025-06-17", "libelle": "Ajout au catalogue des failles exploitées", "qui": "CISA"}, {"date": "2025-07-08", "libelle": "Échéance de correction fixée par la CISA", "qui": "CISA"}, {"date": "2025-07-17", "libelle": "Décision SSVC publiée", "qui": "CISA"}, {"date": "2026-06-17", "libelle": "Dernière mise à jour de la fiche source", "qui": "Source"}, {"date": "2026-10-07", "libelle": "Calcul du score EPSS affiché", "qui": "FIRST"}], "liens_officiels": [{"nom": "NVD (NIST)", "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-0386", "description": "Fiche de référence : CVSS, CPE, références étiquetées."}, {"nom": "CVE.org", "url": "https://www.cve.org/CVERecord?id=CVE-2023-0386", "description": "Enregistrement officiel publié par l'organisme qui a attribué l'identifiant."}, {"nom": "CISA KEV", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-0386", "description": "Entrée du catalogue des failles activement exploitées."}, {"nom": "FIRST EPSS", "url": "https://api.first.org/data/v1/epss?cve=CVE-2023-0386", "description": "Score de probabilité d'exploitation du jour."}, {"nom": "OSV.dev", "url": "https://osv.dev/vulnerability/CVE-2023-0386", "description": "Paquets open source concernés et versions corrigées."}, {"nom": "GitHub Advisory Database", "url": "https://github.com/advisories?query=CVE-2023-0386", "description": "Avis de sécurité des dépendances logicielles."}], "produits": [{"vendor": "Debian", "product": "Debian Linux", "ranges": ["10.0"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Netapp", "product": "h300s Firmware", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Netapp", "product": "h500s Firmware", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Netapp", "product": "h700s Firmware", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Netapp", "product": "h410s Firmware", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Netapp", "product": "h410c Firmware", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Canonical", "product": "Ubuntu Linux", "ranges": ["18.04", "20.04", "22.04"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Linux", "product": "Linux Kernel", "ranges": ["de 5.11 à 5.15.91 (exclue)", "de 5.16 à 6.1.9 (exclue)", "6.2"], "first_unaffected": ["5.15.91", "6.1.9"], "source": "NVD"}, {"vendor": "n/a", "product": "Kernel", "ranges": ["Linux kernel 6.2-rc6"], "first_unaffected": [], "source": "CVE.org"}], "notes_kev": ["https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4f11ada10d0a", "https://access.redhat.com/security/cve/cve-2023-0386", "https://security.netapp.com/advisory/ntap-20230420-0004/", "https://nvd.nist.gov/vuln/detail/CVE-2023-0386"]}, "consulted_at": "2026-10-08T03:59:12.438862+00:00"}