{"item": {"cve_id": "CVE-2013-2094", "ghsa_id": "", "osv_id": "", "title": "CVE-2013-2094", "description": "The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, which allows local users to gain privileges via a crafted perf_event_open system call.", "published_at": "2013-05-14T20:55:01.527", "modified_at": "2026-06-16T23:52:44.150", "vendor": "Linux", "product": "Linux Kernel", "affected_versions": ["n/a"], "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": 0.47709, "epss_percentile": 0.98822, "epss_date": "2026-10-08", "is_kev": true, "kev_date": "2022-09-15", "kev_due_date": "2022-10-06", "kev_action": "Apply updates per vendor instructions.", "cwe_ids": ["CWE-189"], "attack_vector": "LOCAL", "attack_complexity": "LOW", "privileges_required": "NONE", "user_interaction": "NONE", "references": 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"http://www.ubuntu.com/usn/USN-1826-1", "http://www.ubuntu.com/usn/USN-1838-1", "https://bugzilla.redhat.com/show_bug.cgi?id=962792", "https://github.com/torvalds/linux/commit/8176cced706b5e5d15887584150764894e94e02f", "http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.9", "http://www.ubuntu.com/usn/USN-1828-1", "http://www.ubuntu.com/usn/USN-1827-1", "http://www.ubuntu.com/usn/USN-1836-1", "http://www.osvdb.org/93361", "http://www.exploit-db.com/exploits/33589", "http://rhn.redhat.com/errata/RHSA-2013-0830.html", "http://www.openwall.com/lists/oss-security/2013/05/14/6", "http://packetstormsecurity.com/files/121616/semtex.c", "http://twitter.com/djrbliss/statuses/334301992648331267", "http://www.reddit.com/r/netsec/comments/1eb9iw", "http://www.ubuntu.com/usn/USN-1825-1", "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-2094"], "source_urls": {"NVD": "https://nvd.nist.gov/vuln/detail/CVE-2013-2094", "CVE.org": 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"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-2094", "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": "2013-02-19T00:00:00.000Z", "ssvc": {"options": {"Exploitation": "active", "Automatable": "no", "Technical Impact": "total"}, "version": "2.0.3", "timestamp": "2025-05-01T03:55:11.896804Z", "role": "CISA Coordinator"}, "affected_products": [{"vendor": "Linux", "product": "Linux Kernel", "ranges": ["avant 3.0.75", "de 3.1 à 3.2.45 (exclue)", "de 3.3 à 3.4.42 (exclue)", "de 3.5 à 3.8.9 (exclue)"], "first_unaffected": ["3.0.75", "3.2.45", "3.4.42", "3.8.9"], "source": "NVD"}, {"vendor": "n/a", "product": "n/a", "ranges": ["n/a"], "first_unaffected": [], "source": "CVE.org"}], "kev_name": "Linux Kernel Privilege Escalation Vulnerability", "kev_short_description": "Linux kernel fails to check all 64 bits of attr.config passed by user space, resulting to out-of-bounds access of the perf_swevent_enabled array in sw_perf_event_destroy(). Explotation allows for privilege escalation.", "kev_ransomware": "Unknown", "kev_notes": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8176cced706b5e5d15887584150764894e94e02f; https://nvd.nist.gov/vuln/detail/CVE-2013-2094", "kev_cwes": ["CWE-189"], "wordfence_id": "", "mentions_sources": [], "version_match": "unknown", "risk_score": 67, "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": "", "mitigation": {"correction": {"available": true, "text": "Mettre à jour : selon les sources, ne sont plus concernées les versions à partir de Linux Kernel 3.0.75, Linux Kernel 3.2.45, Linux Kernel 3.4.42, Linux Kernel 3.8.9."}, "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 updates per vendor instructions.", "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": "http://twitter.com/djrbliss/statuses/334301992648331267", "groupe": "correctif", "groupe_titre": "Correctifs et versions corrigées", "editeur": "", "domaine": "twitter.com"}]}, "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 Linux Kernel", "headline_is_derived": false, "action": "Mettre à jour vers Linux Kernel 3.0.75, Linux Kernel 3.2.45, Linux Kernel 3.4.42 ou plus récent, version publiée comme non concernée.", "action_kind": "update", "concerned": [{"version": "Linux Kernel 3.0.75, Linux Kernel 3.2.45, Linux Kernel 3.4.42 ou plus récent", "state": "safe", "state_label": "Non concerné", "todo": "Rien à faire. Gardez les mises à jour automatiques activées."}, {"version": "n/a", "state": "hit", "state_label": "Concerné", "todo": "Mettre à jour vers Linux Kernel 3.0.75, Linux Kernel 3.2.45, Linux Kernel 3.4.42 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 3.0.75, Linux Kernel 3.2.45, Linux Kernel 3.4.42 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 3.0.75, Linux Kernel 3.2.45, Linux Kernel 3.4.42 (non concernée selon les sources)", "affected_label": "n/a"}, "severity_display": "Élevée", "cvss_is_legacy": false, "risk_score_computable": true, "identifier": "CVE-2013-2094", "severity_fr": "Élevée", "epss_pct": 47.7, "source_records": [{"source": "NVD", "label": "NVD, NIST", "date_label": "Publié dans la base", "date": "2013-05-14", "url": "https://nvd.nist.gov/vuln/detail/CVE-2013-2094"}, {"source": "CVE.org", "label": "CVE.org, programme CVE", "date_label": "Publié par l'organisme CNA", "date": "2013-05-14", "url": "https://www.cve.org/CVERecord?id=CVE-2013-2094"}, {"source": "CISA", "label": "CISA KEV", "date_label": "Ajout au catalogue", "date": "2022-09-15", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-2094"}, {"source": "FIRST EPSS", "label": "FIRST EPSS", "date_label": "Score daté du", "date": "2026-10-08", "url": "https://api.first.org/data/v1/epss?cve=CVE-2013-2094"}], "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 : 3.0.75, 3.2.45, 3.4.42, 3.8.9", "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": "alerte", "reponse": "47,7 % sur 30 jours", "source": "Plus probable que 99 % 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": "http://twitter.com/djrbliss/statuses/334301992648331267", "domaine": "twitter.com", "editeur": "", "etiquettes": ["Correctif"], "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": "http://lists.centos.org/pipermail/centos-announce/2013-May/019729.html", "domaine": "lists.centos.org", "editeur": "", "etiquettes": ["Avis d'un tiers", "Base de vulnérabilités"], "nom": "", "lien": true, "casse": false}, {"url": 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"https://cwe.mitre.org/data/definitions/189.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": "2025-05-01", "role": "CISA Coordinator", "url": "https://www.cisa.gov/stakeholder-specific-vulnerability-categorization-ssvc"}, "chronologie": [{"date": "2013-02-19", "libelle": "Identifiant réservé", "qui": "Programme CVE"}, {"date": "2013-05-14", "libelle": "Publication de la vulnérabilité", "qui": "redhat"}, {"date": "2022-09-15", "libelle": "Ajout au catalogue des failles exploitées", "qui": "CISA"}, {"date": "2022-10-06", "libelle": "Échéance de correction fixée par la CISA", "qui": "CISA"}, {"date": "2025-05-01", "libelle": "Décision SSVC publiée", "qui": "CISA"}, {"date": "2026-06-16", "libelle": "Dernière mise à jour de la fiche source", "qui": "Source"}, {"date": "2026-10-08", "libelle": "Calcul du score EPSS affiché", "qui": "FIRST"}], "liens_officiels": [{"nom": "NVD (NIST)", "url": "https://nvd.nist.gov/vuln/detail/CVE-2013-2094", "description": "Fiche de référence : CVSS, CPE, références étiquetées."}, {"nom": "CVE.org", "url": "https://www.cve.org/CVERecord?id=CVE-2013-2094", "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-2013-2094", "description": "Entrée du catalogue des failles activement exploitées."}, {"nom": "FIRST EPSS", "url": "https://api.first.org/data/v1/epss?cve=CVE-2013-2094", "description": "Score de probabilité d'exploitation du jour."}, {"nom": "OSV.dev", "url": "https://osv.dev/vulnerability/CVE-2013-2094", "description": "Paquets open source concernés et versions corrigées."}, {"nom": "GitHub Advisory Database", "url": "https://github.com/advisories?query=CVE-2013-2094", "description": "Avis de sécurité des dépendances logicielles."}], "produits": [{"vendor": "Linux", "product": "Linux Kernel", "ranges": ["avant 3.0.75", "de 3.1 à 3.2.45 (exclue)", "de 3.3 à 3.4.42 (exclue)", "de 3.5 à 3.8.9 (exclue)"], "first_unaffected": ["3.0.75", "3.2.45", "3.4.42", "3.8.9"], "source": "NVD"}, {"vendor": "n/a", "product": "n/a", "ranges": ["n/a"], "first_unaffected": [], "source": "CVE.org"}], "notes_kev": ["https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8176cced706b5e5d15887584150764894e94e02f", "https://nvd.nist.gov/vuln/detail/CVE-2013-2094"]}, "consulted_at": "2026-10-08T15:48:31.383333+00:00"}