{"item": {"cve_id": "CVE-2022-0185", "ghsa_id": "", "osv_id": "", "title": "CVE-2022-0185", "description": "A heap-based buffer overflow flaw was found in the way the legacy_parse_param function in the Filesystem Context functionality of the Linux kernel verified the supplied parameters length. An unprivileged (in case of unprivileged user namespaces enabled, otherwise needs namespaced CAP_SYS_ADMIN privilege) local user able to open a filesystem that does not support the Filesystem Context API (and thus fallbacks to legacy handling) could use this flaw to escalate their privileges on the system.", "published_at": "2022-02-11T18:15:10.890", "modified_at": "2026-06-17T04:20:06.923", "vendor": "Linux", "product": "Linux Kernel", "affected_versions": ["8.4"], "fixed_versions": [], "cvss_score": 8.4, "cvss_version": "3.1", "cvss_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "severity": "HIGH", "epss_score": 0.25151, "epss_percentile": 0.97882, "epss_date": "2026-10-06", "is_kev": true, "kev_date": "2024-08-21", "kev_due_date": "2024-09-11", "kev_action": "Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.", "cwe_ids": ["CWE-190", "CWE-191"], "attack_vector": "LOCAL", "attack_complexity": "LOW", "privileges_required": "NONE", "user_interaction": "NONE", "references": ["https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=722d94847de2", "https://github.com/Crusaders-of-Rust/CVE-2022-0185", "https://security.netapp.com/advisory/ntap-20220225-0003/", "https://www.openwall.com/lists/oss-security/2022/01/18/7", "https://www.willsroot.io/2022/01/cve-2022-0185.html", "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=722d94847de2", "https://github.com/Crusaders-of-Rust/CVE-2022-0185", "https://security.netapp.com/advisory/ntap-20220225-0003/", "https://www.openwall.com/lists/oss-security/2022/01/18/7", "https://www.willsroot.io/2022/01/cve-2022-0185.html", "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-0185"], "source_urls": {"NVD": "https://nvd.nist.gov/vuln/detail/CVE-2022-0185", "CVE.org": "https://www.cve.org/CVERecord?id=CVE-2022-0185", "CISA": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-0185", "FIRST EPSS": "https://api.first.org/data/v1/epss?cve=CVE-2022-0185"}, "patch_available": null, "workaround_available": null, "sources": ["NVD", "CVE.org", "CISA", "FIRST EPSS"], "reference_items": [{"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=722d94847de2", "tags": ["Mailing List", "Patch"], "source": "NVD", "name": ""}, {"url": "https://github.com/Crusaders-of-Rust/CVE-2022-0185", "tags": ["Exploit", "Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "https://security.netapp.com/advisory/ntap-20220225-0003/", "tags": ["Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "https://www.openwall.com/lists/oss-security/2022/01/18/7", "tags": ["Mailing List", "Patch", "Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "https://www.willsroot.io/2022/01/cve-2022-0185.html", "tags": ["Exploit", "Third Party Advisory"], "source": "NVD", "name": ""}, {"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=722d94847de2", "tags": ["Mailing List", "Patch", "x_refsource_MISC", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://github.com/Crusaders-of-Rust/CVE-2022-0185", "tags": ["Exploit", "Third Party Advisory", "x_refsource_MISC", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://security.netapp.com/advisory/ntap-20220225-0003/", "tags": ["Third Party Advisory", "x_refsource_CONFIRM", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://www.openwall.com/lists/oss-security/2022/01/18/7", "tags": ["Mailing List", "Patch", "Third Party Advisory", "x_refsource_MISC", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://www.willsroot.io/2022/01/cve-2022-0185.html", "tags": ["Exploit", "Third Party Advisory", "x_refsource_MISC", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-0185", "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": "2022-01-11T00:00:00.000Z", "ssvc": {"options": {"Exploitation": "active", "Automatable": "no", "Technical Impact": "total"}, "version": "2.0.3", "timestamp": "2024-08-22T12:49:08.646375Z", "role": "CISA Coordinator"}, "affected_products": [{"vendor": "Linux", "product": "Linux Kernel", "ranges": ["de 5.1 à 5.4.173 (exclue)", "de 5.5 à 5.10.93 (exclue)", "de 5.11 à 5.15.16 (exclue)", "de 5.16 à 5.16.2 (exclue)"], "first_unaffected": ["5.4.173", "5.10.93", "5.15.16", "5.16.2"], "source": "NVD"}, {"vendor": "Netapp", "product": "h410c Firmware", "ranges": ["toutes versions (selon NVD)"], "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": "h300e Firmware", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Netapp", "product": "h500e Firmware", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Netapp", "product": "h700e 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": "n/a", "product": "kernel", "ranges": ["8.4"], "first_unaffected": [], "source": "CVE.org"}], "kev_name": "Linux Kernel Heap-Based Buffer Overflow Vulnerability", "kev_short_description": "Linux kernel contains a heap-based buffer overflow vulnerability in the legacy_parse_param function in the Filesystem Context functionality. This allows an attacker to open a filesystem that does not support the Filesystem Context API and ultimately escalate privileges.", "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=722d94847de2; https://nvd.nist.gov/vuln/detail/CVE-2022-0185", "kev_cwes": ["CWE-190"], "wordfence_id": "", "mentions_sources": [], "version_match": "unknown", "risk_score": 62, "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, sans authentification préalable, affecter la confidentialité des données, l'intégrité du système et la disponibilité du service.", "basis": "CVSS 3.1"}, "mechanism": "Débordement d'entier : un calcul dépasse la capacité d'un nombre, faussant la logique.", "mitigation": {"correction": {"available": true, "text": "Mettre à jour : selon les sources, ne sont plus concernées les versions à partir de Linux Kernel 5.4.173, Linux Kernel 5.10.93, Linux Kernel 5.15.16, Linux Kernel 5.16.2."}, "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 updates per vendor instructions or discontinue use of the product if updates 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": [{"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=722d94847de2", "groupe": "correctif", "groupe_titre": "Correctifs et versions corrigées", "editeur": "", "domaine": "git.kernel.org"}, {"url": "https://www.openwall.com/lists/oss-security/2022/01/18/7", "groupe": "correctif", "groupe_titre": "Correctifs et versions corrigées", "editeur": "Openwall (oss-security)", "domaine": "www.openwall.com"}]}, "plain": {"verdict": "now", "verdict_label": "Exploité par des attaquants · à traiter aujourd'hui", "verdict_css": "now", "verdict_rank": 0, "headline": "Un calcul interne peut déborder et fausser la logique du programme, depuis l'appareil lui-même", "headline_is_derived": true, "action": "Mettre à jour vers Linux Kernel 5.4.173, Linux Kernel 5.10.93, Linux Kernel 5.15.16 ou plus récent, version publiée comme non concernée.", "action_kind": "update", "concerned": [{"version": "Linux Kernel 5.4.173, Linux Kernel 5.10.93, Linux Kernel 5.15.16 ou plus récent", "state": "safe", "state_label": "Non concerné", "todo": "Rien à faire. Gardez les mises à jour automatiques activées."}, {"version": "8.4", "state": "hit", "state_label": "Concerné", "todo": "Mettre à jour vers Linux Kernel 5.4.173, Linux Kernel 5.10.93, Linux Kernel 5.15.16 ou plus récent, version publiée comme non concernée."}, {"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": "Mettre à jour vers Linux Kernel 5.4.173, Linux Kernel 5.10.93, Linux Kernel 5.15.16 ou plus récent, version publiée comme non concernée", "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": "Linux Kernel 5.4.173, Linux Kernel 5.10.93, Linux Kernel 5.15.16 (non concernée selon les sources)", "affected_label": "8.4"}, "severity_display": "Élevée", "cvss_is_legacy": false, "risk_score_computable": true, "identifier": "CVE-2022-0185", "severity_fr": "Élevée", "epss_pct": 25.2, "source_records": [{"source": "NVD", "label": "NVD, NIST", "date_label": "Publié dans la base", "date": "2022-02-11", "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-0185"}, {"source": "CVE.org", "label": "CVE.org, programme CVE", "date_label": "Publié par l'organisme CNA", "date": "2022-02-11", "url": "https://www.cve.org/CVERecord?id=CVE-2022-0185"}, {"source": "CISA", "label": "CISA KEV", "date_label": "Ajout au catalogue", "date": "2024-08-21", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-0185"}, {"source": "FIRST EPSS", "label": "FIRST EPSS", "date_label": "Score daté du", "date": "2026-10-06", "url": "https://api.first.org/data/v1/epss?cve=CVE-2022-0185"}], "exploit_public": true, "reseau_sans_auth": false, "exposition": "Avec un accès à la machine", "owasp": []}, "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 : 5.4.173, 5.10.93, 5.15.16, 5.16.2", "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": "alerte", "reponse": "25,2 % sur 30 jours", "source": "Plus probable que 98 % 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=722d94847de2", "domaine": "git.kernel.org", "editeur": "", "etiquettes": ["Liste de diffusion", "Correctif"], "nom": "", "lien": true, "casse": false}, {"url": "https://www.openwall.com/lists/oss-security/2022/01/18/7", "domaine": "www.openwall.com", "editeur": "Openwall (oss-security)", "etiquettes": ["Liste de diffusion", "Correctif", "Avis d'un tiers"], "nom": "", "lien": true, "casse": false}]}, {"cle": "avis_tiers", "titre": "Avis d'autorités et d'organismes tiers", "explication": "CERT, agences gouvernementales, bases de vulnérabilités, chercheurs.", "items": [{"url": "https://security.netapp.com/advisory/ntap-20220225-0003/", "domaine": "security.netapp.com", "editeur": "NetApp", "etiquettes": ["Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-0185", "domaine": "www.cisa.gov", "editeur": "CISA", "etiquettes": ["Ressource gouvernementale américaine", "Ressource gouvernementale"], "nom": "", "lien": true, "casse": false}]}, {"cle": "exploit", "titre": "Codes d'exploitation référencés", "explication": "Les sources signalent un code d'exploitation public. Par prudence, CyberAlert affiche le site qui l'héberge sans lien direct : l'information utile ici est son existence, qui rend la faille plus facile à attaquer.", "items": [{"url": "https://github.com/Crusaders-of-Rust/CVE-2022-0185", "domaine": "github.com", "editeur": "GitHub", "etiquettes": ["Code d'exploitation", "Avis d'un tiers"], "nom": "", "lien": false, "casse": false}, {"url": "https://www.willsroot.io/2022/01/cve-2022-0185.html", "domaine": "www.willsroot.io", "editeur": "", "etiquettes": ["Code d'exploitation", "Avis d'un tiers"], "nom": "", "lien": false, "casse": false}]}], "liens_correction": [{"url": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=722d94847de2", "domaine": "git.kernel.org", "editeur": "", "etiquettes": ["Liste de diffusion", "Correctif"], "nom": "", "lien": true, "casse": false, "groupe": "correctif", "groupe_titre": "Correctifs et versions corrigées"}, {"url": "https://www.openwall.com/lists/oss-security/2022/01/18/7", "domaine": "www.openwall.com", "editeur": "Openwall (oss-security)", "etiquettes": ["Liste de diffusion", "Correctif", "Avis d'un tiers"], "nom": "", "lien": true, "casse": false, "groupe": "correctif", "groupe_titre": "Correctifs et versions corrigées"}], "nb_exploits": 2, "cvss": {"version": "3.1", "vecteur": "CVSS:3.1/AV:L/AC:L/PR:N/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": "Aucun (pas de compte)", "brut": "N", "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:N/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-190", "nom": "Integer Overflow or Wraparound", "url": "https://cwe.mitre.org/data/definitions/190.html"}, {"id": "CWE-191", "nom": "", "url": "https://cwe.mitre.org/data/definitions/191.html"}], "owasp": [], "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": "2024-08-22", "role": "CISA Coordinator", "url": "https://www.cisa.gov/stakeholder-specific-vulnerability-categorization-ssvc"}, "chronologie": [{"date": "2022-01-11", "libelle": "Identifiant réservé", "qui": "Programme CVE"}, {"date": "2022-02-11", "libelle": "Publication de la vulnérabilité", "qui": "redhat"}, {"date": "2024-08-21", "libelle": "Ajout au catalogue des failles exploitées", "qui": "CISA"}, {"date": "2024-08-22", "libelle": "Décision SSVC publiée", "qui": "CISA"}, {"date": "2024-09-11", "libelle": "Échéance de correction fixée par la CISA", "qui": "CISA"}, {"date": "2026-06-17", "libelle": "Dernière mise à jour de la fiche source", "qui": "Source"}, {"date": "2026-10-06", "libelle": "Calcul du score EPSS affiché", "qui": "FIRST"}], "liens_officiels": [{"nom": "NVD (NIST)", "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-0185", "description": "Fiche de référence : CVSS, CPE, références étiquetées."}, {"nom": "CVE.org", "url": "https://www.cve.org/CVERecord?id=CVE-2022-0185", "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-2022-0185", "description": "Entrée du catalogue des failles activement exploitées."}, {"nom": "FIRST EPSS", "url": "https://api.first.org/data/v1/epss?cve=CVE-2022-0185", "description": "Score de probabilité d'exploitation du jour."}, {"nom": "OSV.dev", "url": "https://osv.dev/vulnerability/CVE-2022-0185", "description": "Paquets open source concernés et versions corrigées."}, {"nom": "GitHub Advisory Database", "url": "https://github.com/advisories?query=CVE-2022-0185", "description": "Avis de sécurité des dépendances logicielles."}], "produits": [{"vendor": "Linux", "product": "Linux Kernel", "ranges": ["de 5.1 à 5.4.173 (exclue)", "de 5.5 à 5.10.93 (exclue)", "de 5.11 à 5.15.16 (exclue)", "de 5.16 à 5.16.2 (exclue)"], "first_unaffected": ["5.4.173", "5.10.93", "5.15.16", "5.16.2"], "source": "NVD"}, {"vendor": "Netapp", "product": "h410c Firmware", "ranges": ["toutes versions (selon NVD)"], "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": "h300e Firmware", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Netapp", "product": "h500e Firmware", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Netapp", "product": "h700e 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": "n/a", "product": "kernel", "ranges": ["8.4"], "first_unaffected": [], "source": "CVE.org"}], "notes_kev": ["https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=722d94847de2", "https://nvd.nist.gov/vuln/detail/CVE-2022-0185"]}, "consulted_at": "2026-10-07T13:51:43.698309+00:00"}