{"item": {"cve_id": "CVE-2023-4863", "ghsa_id": "", "osv_id": "", "title": "CVE-2023-4863", "description": "Heap buffer overflow in libwebp in Google Chrome prior to 116.0.5845.187 and libwebp 1.3.2 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: Critical)", "published_at": "2023-09-12T15:15:24.327", "modified_at": "2026-06-17T06:38:46.547", "vendor": "Google", "product": "Chrome", "affected_versions": ["116.0.5845.187", "1.3.2"], "fixed_versions": [], "cvss_score": 8.8, "cvss_version": "3.1", "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "severity": "HIGH", "epss_score": 0.99979, "epss_percentile": 0.9998, "epss_date": "2026-10-06", "is_kev": true, "kev_date": "2023-09-13", "kev_due_date": "2023-10-04", "kev_action": "Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.", "cwe_ids": ["CWE-787"], "attack_vector": "NETWORK", "attack_complexity": "LOW", "privileges_required": "NONE", "user_interaction": "REQUIRED", "references": ["http://www.openwall.com/lists/oss-security/2023/09/21/4", "http://www.openwall.com/lists/oss-security/2023/09/22/1", "http://www.openwall.com/lists/oss-security/2023/09/22/3", 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"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-4863", "https://security-tracker.debian.org/tracker/CVE-2023-4863", "https://bugzilla.suse.com/show_bug.cgi?id=1215231", "https://news.ycombinator.com/item?id=37478403", "https://www.bleepingcomputer.com/news/google/google-fixes-another-chrome-zero-day-bug-exploited-in-attacks/", "https://www.debian.org/security/2023/dsa-5496", "https://www.debian.org/security/2023/dsa-5497", "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OZDGWWMJREPAGKWCJKSCM4WYLANSKIFX/", "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FYYKLG6CRGEDTNRBSU26EEWAO6D6U645/", "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PYZV7TMKF4QHZ54SFJX54BDN52VHGGCX/", "https://lists.debian.org/debian-lts-announce/2023/09/msg00015.html", "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WHOLML7N2G5KCAZXFWC5IDFFHSQS5SDB/", "https://www.debian.org/security/2023/dsa-5498", "https://security.gentoo.org/glsa/202309-05", "https://lists.debian.org/debian-lts-announce/2023/09/msg00016.html", "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6T655QF7CQ3DYAMPFV7IECQYGDEUIVVT/", "https://adamcaudill.com/2023/09/14/whose-cve-is-it-anyway/", "https://github.com/webmproject/libwebp/releases/tag/v1.3.2", "https://lists.debian.org/debian-lts-announce/2023/09/msg00017.html", "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KUQ7CTX3W372X3UY56VVNAHCH6H2F4X3/", "https://blog.isosceles.com/the-webp-0day/", "http://www.openwall.com/lists/oss-security/2023/09/28/4", "https://security.netapp.com/advisory/ntap-20230929-0011/", 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"https://blog.isosceles.com/the-webp-0day/", "tags": ["Exploit", "Third Party Advisory", "x_transferred"], "source": "NVD", "name": ""}, {"url": "https://www.vicarius.io/vsociety/posts/zero-day-webp-vulnerability-cve-2023-4863", "tags": [], "source": "CVE.org", "name": ""}, {"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-4863", "tags": ["government-resource"], "source": "CVE.org", "name": ""}], "cvss_v4_score": null, "cvss_v4_vector": "", "cvss_v4_severity": "", "nvd_status": "Analyzed", "cna": "Chrome", "date_reserved": "2023-09-09T01:02:58.312Z", "ssvc": {"options": {"Exploitation": "active", "Automatable": "no", "Technical Impact": "total"}, "version": "2.0.3", "timestamp": "2023-11-28T05:00:18.341149Z", "role": "CISA Coordinator"}, "affected_products": [{"vendor": "Google", "product": "Chrome", "ranges": ["avant 116.0.5845.187"], "first_unaffected": ["116.0.5845.187"], "source": "NVD"}, {"vendor": "Fedoraproject", "product": "Fedora", "ranges": ["37", "38", "39"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Debian", "product": "Debian Linux", "ranges": ["10.0", "11.0", "12.0"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Mozilla", "product": "Firefox", "ranges": ["avant 102.15.1", "avant 117.0.1", "de 115.1.0 à 115.2.1 (exclue)"], "first_unaffected": ["102.15.1", "117.0.1", "115.2.1"], "source": "NVD"}, {"vendor": "Mozilla", "product": "Thunderbird", "ranges": ["avant 102.15.1", "de 115.0 à 115.2.2 (exclue)"], "first_unaffected": ["102.15.1", "115.2.2"], "source": "NVD"}, {"vendor": "Microsoft", "product": "Edge Chromium", "ranges": ["avant 116.0.1938.81"], "first_unaffected": ["116.0.1938.81"], "source": "NVD"}, {"vendor": "Microsoft", "product": "Teams", "ranges": ["avant 1.6.00.26463", "avant 1.6.00.26474"], "first_unaffected": ["1.6.00.26463", "1.6.00.26474"], "source": "NVD"}, {"vendor": "Microsoft", "product": "Webp Image Extension", "ranges": ["avant 1.0.62681.0"], "first_unaffected": ["1.0.62681.0"], "source": "NVD"}, {"vendor": "Webmproject", "product": "Libwebp", "ranges": ["avant 1.3.2"], "first_unaffected": ["1.3.2"], "source": "NVD"}, {"vendor": "Netapp", "product": "Active Iq Unified Manager", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Bentley", "product": "Seequent Leapfrog", "ranges": ["avant 2023.2"], "first_unaffected": ["2023.2"], "source": "NVD"}, {"vendor": "Bandisoft", "product": "Honeyview", "ranges": ["avant 5.51"], "first_unaffected": ["5.51"], "source": "NVD"}, {"vendor": "Google", "product": "libwebp", "ranges": ["de 1.3.2 à 1.3.2 (exclue)"], "first_unaffected": ["1.3.2"], "source": "CVE.org"}], "kev_name": "Google Chromium WebP Heap-Based Buffer Overflow Vulnerability", "kev_short_description": "Google Chromium WebP contains a heap-based buffer overflow vulnerability that allows a remote attacker to perform an out-of-bounds memory write via a crafted HTML page. This vulnerability can affect applications that use the WebP Codec.", "kev_ransomware": "Unknown", "kev_notes": "https://chromereleases.googleblog.com/2023/09/stable-channel-update-for-desktop_11.html?m=1; https://nvd.nist.gov/vuln/detail/CVE-2023-4863", "kev_cwes": ["CWE-787"], "wordfence_id": "", "mentions_sources": [], "version_match": "unknown", "risk_score": 78, "risk_class": "Critique", "impact": {"confidentialite": "élevé", "integrite": "élevé", "disponibilite": "élevé", "summary": "Un attaquant exploitant cette vulnérabilité pourrait, selon les conditions décrites par les sources, exploitable à distance (réseau), sans authentification préalable, requiert une interaction de l'utilisateur, affecter la confidentialité des données, l'intégrité du système et la disponibilité du service.", "basis": "CVSS 3.1"}, "mechanism": "Écriture hors limites mémoire : l'application écrit au-delà d'une zone prévue, pouvant provoquer un plantage ou un comportement anormal.", "mitigation": {"correction": {"available": true, "text": "Mettre à jour : selon les sources, ne sont plus concernées les versions à partir de Chrome 116.0.5845.187, Firefox 102.15.1, Firefox 117.0.1, Firefox 115.2.1, Thunderbird 102.15.1."}, "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 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": [{"url": "https://en.bandisoft.com/honeyview/history/", "groupe": "correctif", "groupe_titre": "Correctifs et versions corrigées", "editeur": "", "domaine": "en.bandisoft.com"}, {"url": "https://github.com/webmproject/libwebp/commit/902bc9190331343b2017211debcec8d2ab87e17a", "groupe": "correctif", "groupe_titre": "Correctifs et versions corrigées", "editeur": "GitHub", "domaine": "github.com"}, {"url": "https://github.com/webmproject/libwebp/releases/tag/v1.3.2", "groupe": "correctif", "groupe_titre": "Correctifs et versions corrigées", "editeur": "GitHub", "domaine": "github.com"}, {"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-4863", "groupe": "correctif", "groupe_titre": "Correctifs et versions corrigées", "editeur": "Microsoft", "domaine": "msrc.microsoft.com"}, {"url": "https://chromereleases.googleblog.com/2023/09/stable-channel-update-for-desktop_11.html", "groupe": "avis_editeur", "groupe_titre": "Avis de sécurité de l'éditeur", "editeur": "Google Chrome", "domaine": "chromereleases.googleblog.com"}, {"url": "https://crbug.com/1479274", "groupe": "avis_editeur", "groupe_titre": "Avis de sécurité de l'éditeur", "editeur": "", "domaine": "crbug.com"}]}, "plain": {"verdict": "now", "verdict_label": "Exploité par des attaquants · à traiter aujourd'hui", "verdict_css": "now", "verdict_rank": 0, "headline": "Le logiciel peut écrire hors de la zone mémoire prévue, jusqu'au plantage, à distance et sans compte", "headline_is_derived": true, "action": "Mettre à jour vers Chrome 116.0.5845.187 ou plus récent, version publiée comme non concernée.", "action_kind": "update", "concerned": [{"version": "Chrome 116.0.5845.187 ou plus récent", "state": "safe", "state_label": "Non concerné", "todo": "Rien à faire. Gardez les mises à jour automatiques activées."}, {"version": "116.0.5845.187, 1.3.2", "state": "hit", "state_label": "Concerné", "todo": "Mettre à jour vers Chrome 116.0.5845.187 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 Chrome 116.0.5845.187 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 : réduire l'exposition sur Internet", "detail": "La faille est exploitable à distance. Limiter l'accès au service depuis l'extérieur (pare-feu, filtrage d'adresses, VPN) réduit fortement le risque.", "duration": "30 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": "Chrome 116.0.5845.187 (non concernée selon les sources)", "affected_label": "116.0.5845.187, 1.3.2"}, "severity_display": "Élevée", "cvss_is_legacy": false, "risk_score_computable": true, "identifier": "CVE-2023-4863", "severity_fr": "Élevée", "epss_pct": 100.0, "source_records": [{"source": "NVD", "label": "NVD, NIST", "date_label": "Publié dans la base", "date": "2023-09-12", "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-4863"}, {"source": "CVE.org", "label": "CVE.org, programme CVE", "date_label": "Publié par l'organisme CNA", "date": "2023-09-12", "url": "https://www.cve.org/CVERecord?id=CVE-2023-4863"}, {"source": "CISA", "label": "CISA KEV", "date_label": "Ajout au catalogue", "date": "2023-09-13", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-4863"}, {"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-2023-4863"}], "exploit_public": true, "reseau_sans_auth": false, "exposition": "À distance, sous conditions (compte ou action d'un utilisateur)", "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 : 116.0.5845.187, 102.15.1, 117.0.1, 115.2.1…", "source": "Versions publiées comme non concernées"}, {"question": "Comment l'attaquer ?", "ton": "neutre", "reponse": "À distance, sous conditions (compte ou action d'un utilisateur)", "source": "Vecteur CVSS publié"}, {"question": "Risque d'exploitation", "ton": "alerte", "reponse": "100,0 % sur 30 jours", "source": "Plus probable que 100 % 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://en.bandisoft.com/honeyview/history/", "domaine": "en.bandisoft.com", "editeur": "", "etiquettes": ["Notes de version"], "nom": "", "lien": true, "casse": false}, {"url": "https://github.com/webmproject/libwebp/commit/902bc9190331343b2017211debcec8d2ab87e17a", "domaine": "github.com", "editeur": "GitHub", "etiquettes": ["Correctif"], "nom": "", "lien": true, "casse": false}, {"url": "https://github.com/webmproject/libwebp/releases/tag/v1.3.2", "domaine": "github.com", "editeur": "GitHub", "etiquettes": ["Notes de version"], "nom": "", "lien": true, "casse": false}, {"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-4863", "domaine": "msrc.microsoft.com", "editeur": "Microsoft", "etiquettes": ["Correctif", "Avis d'un tiers"], "nom": "", "lien": true, "casse": false}]}, {"cle": "avis_editeur", "titre": "Avis de sécurité de l'éditeur", "explication": "La parole de l'éditeur du produit : elle fait foi pour savoir quoi installer.", "items": [{"url": "https://chromereleases.googleblog.com/2023/09/stable-channel-update-for-desktop_11.html", "domaine": "chromereleases.googleblog.com", "editeur": "Google Chrome", "etiquettes": ["Avis de l'éditeur"], "nom": "", "lien": true, "casse": false}, {"url": "https://crbug.com/1479274", "domaine": "crbug.com", "editeur": "", "etiquettes": ["Suivi de ticket", "Avis de l'éditeur"], "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://adamcaudill.com/2023/09/14/whose-cve-is-it-anyway/", "domaine": "adamcaudill.com", "editeur": "", "etiquettes": ["Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://bugzilla.suse.com/show_bug.cgi?id=1215231", "domaine": "bugzilla.suse.com", "editeur": "", "etiquettes": ["Suivi de ticket", "Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://lists.debian.org/debian-lts-announce/2023/09/msg00015.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/2023/09/msg00016.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/2023/09/msg00017.html", "domaine": "lists.debian.org", "editeur": "Debian", "etiquettes": ["Liste de diffusion", "Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://security-tracker.debian.org/tracker/CVE-2023-4863", "domaine": "security-tracker.debian.org", "editeur": "Debian", "etiquettes": ["Suivi de ticket", "Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://security.gentoo.org/glsa/202309-05", "domaine": "security.gentoo.org", "editeur": "Gentoo", "etiquettes": ["Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://security.gentoo.org/glsa/202401-10", "domaine": "security.gentoo.org", "editeur": "Gentoo", "etiquettes": ["Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://security.netapp.com/advisory/ntap-20230929-0011/", "domaine": "security.netapp.com", "editeur": "NetApp", "etiquettes": ["Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://www.bentley.com/advisories/be-2023-0001/", "domaine": "www.bentley.com", "editeur": "", "etiquettes": ["Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://www.bleepingcomputer.com/news/google/google-fixes-another-chrome-zero-day-bug-exploited-in-attacks/", "domaine": "www.bleepingcomputer.com", "editeur": "", "etiquettes": ["Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://www.debian.org/security/2023/dsa-5498", "domaine": "www.debian.org", "editeur": "Debian", "etiquettes": ["Liste de diffusion", "Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2023-40/", "domaine": "www.mozilla.org", "editeur": "Mozilla", "etiquettes": ["Avis d'un tiers"], "nom": "", "lien": true, "casse": false}, {"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-4863", "domaine": "www.cisa.gov", "editeur": "CISA", "etiquettes": ["Ressource gouvernementale"], "nom": "", "lien": true, "casse": false}]}, {"cle": "analyse", "titre": "Analyses, tickets et discussions", "explication": "Pour comprendre le défaut : description technique, ticket, liste de diffusion.", "items": [{"url": "http://www.openwall.com/lists/oss-security/2023/09/21/4", "domaine": "www.openwall.com", "editeur": "Openwall (oss-security)", "etiquettes": ["Liste de diffusion"], "nom": "", "lien": true, "casse": false}, {"url": "http://www.openwall.com/lists/oss-security/2023/09/22/1", "domaine": "www.openwall.com", "editeur": "Openwall (oss-security)", "etiquettes": ["Liste de diffusion"], "nom": "", "lien": true, "casse": false}, {"url": "http://www.openwall.com/lists/oss-security/2023/09/22/3", "domaine": "www.openwall.com", "editeur": "Openwall (oss-security)", "etiquettes": ["Liste de diffusion"], "nom": "", "lien": true, "casse": false}, {"url": "http://www.openwall.com/lists/oss-security/2023/09/22/4", "domaine": "www.openwall.com", "editeur": "Openwall (oss-security)", "etiquettes": ["Liste de diffusion"], "nom": "", "lien": true, "casse": false}, {"url": "http://www.openwall.com/lists/oss-security/2023/09/22/5", "domaine": "www.openwall.com", "editeur": "Openwall (oss-security)", "etiquettes": ["Liste de diffusion"], "nom": "", "lien": true, "casse": false}, {"url": "http://www.openwall.com/lists/oss-security/2023/09/22/6", "domaine": "www.openwall.com", "editeur": "Openwall (oss-security)", "etiquettes": ["Liste de diffusion"], "nom": "", "lien": true, "casse": false}, {"url": "http://www.openwall.com/lists/oss-security/2023/09/22/7", "domaine": "www.openwall.com", "editeur": "Openwall (oss-security)", "etiquettes": ["Liste de diffusion"], "nom": "", "lien": true, "casse": false}, {"url": "http://www.openwall.com/lists/oss-security/2023/09/22/8", "domaine": "www.openwall.com", "editeur": "Openwall (oss-security)", "etiquettes": ["Liste de diffusion"], "nom": "", "lien": true, "casse": false}, {"url": "http://www.openwall.com/lists/oss-security/2023/09/26/1", "domaine": "www.openwall.com", "editeur": "Openwall (oss-security)", "etiquettes": ["Liste de diffusion"], "nom": "", "lien": true, "casse": false}, {"url": "http://www.openwall.com/lists/oss-security/2023/09/26/7", "domaine": "www.openwall.com", "editeur": "Openwall (oss-security)", "etiquettes": ["Liste de diffusion"], "nom": "", "lien": true, "casse": false}, {"url": "http://www.openwall.com/lists/oss-security/2023/09/28/1", "domaine": "www.openwall.com", "editeur": "Openwall (oss-security)", "etiquettes": ["Liste de diffusion"], "nom": "", "lien": true, "casse": false}, {"url": "http://www.openwall.com/lists/oss-security/2023/09/28/2", "domaine": "www.openwall.com", "editeur": "Openwall (oss-security)", "etiquettes": ["Liste de diffusion"], "nom": "", "lien": true, "casse": false}, {"url": "http://www.openwall.com/lists/oss-security/2023/09/28/4", "domaine": "www.openwall.com", "editeur": "Openwall (oss-security)", "etiquettes": ["Liste de diffusion"], "nom": "", "lien": true, "casse": false}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6T655QF7CQ3DYAMPFV7IECQYGDEUIVVT/", "domaine": "lists.fedoraproject.org", "editeur": "Fedora", "etiquettes": ["Liste de diffusion"], "nom": "", "lien": true, "casse": false}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FYYKLG6CRGEDTNRBSU26EEWAO6D6U645/", "domaine": "lists.fedoraproject.org", "editeur": "Fedora", "etiquettes": ["Liste de diffusion"], "nom": "", "lien": true, "casse": false}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KUQ7CTX3W372X3UY56VVNAHCH6H2F4X3/", "domaine": "lists.fedoraproject.org", "editeur": "Fedora", "etiquettes": ["Liste de diffusion"], "nom": "", "lien": true, "casse": false}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OZDGWWMJREPAGKWCJKSCM4WYLANSKIFX/", "domaine": "lists.fedoraproject.org", "editeur": "Fedora", "etiquettes": ["Liste de diffusion"], "nom": "", "lien": true, "casse": false}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PYZV7TMKF4QHZ54SFJX54BDN52VHGGCX/", "domaine": "lists.fedoraproject.org", "editeur": "Fedora", "etiquettes": ["Liste de diffusion"], "nom": "", "lien": true, "casse": false}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WHOLML7N2G5KCAZXFWC5IDFFHSQS5SDB/", "domaine": "lists.fedoraproject.org", "editeur": "Fedora", "etiquettes": ["Liste de diffusion"], "nom": "", "lien": true, "casse": false}, {"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WTRUIS3564P7ZLM2S2IH4Y4KZ327LI4I/", "domaine": "lists.fedoraproject.org", "editeur": "Fedora", "etiquettes": ["Liste de diffusion"], "nom": "", "lien": true, "casse": false}, {"url": "https://www.debian.org/security/2023/dsa-5496", "domaine": "www.debian.org", "editeur": "Debian", "etiquettes": ["Liste de diffusion"], "nom": "", "lien": true, "casse": false}, {"url": "https://www.debian.org/security/2023/dsa-5497", "domaine": "www.debian.org", "editeur": "Debian", "etiquettes": ["Liste de diffusion"], "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://blog.isosceles.com/the-webp-0day/", "domaine": "blog.isosceles.com", "editeur": "", "etiquettes": ["Code d'exploitation", "Avis d'un tiers"], "nom": "", "lien": false, "casse": false}, {"url": "https://news.ycombinator.com/item?id=37478403", "domaine": "news.ycombinator.com", "editeur": "", "etiquettes": ["Code d'exploitation", "Avis d'un tiers"], "nom": "", "lien": false, "casse": false}, {"url": "https://sethmlarson.dev/security-developer-in-residence-weekly-report-16", "domaine": "sethmlarson.dev", "editeur": "", "etiquettes": ["Code d'exploitation"], "nom": "", "lien": false, "casse": false}, {"url": "https://stackdiary.com/critical-vulnerability-in-webp-codec-cve-2023-4863/", "domaine": "stackdiary.com", "editeur": "", "etiquettes": ["Code d'exploitation", "Avis d'un tiers"], "nom": "", "lien": false, "casse": false}]}, {"cle": "autres", "titre": "Autres références", "explication": "Références publiées sans étiquette par les sources : leur nature n'est pas qualifiée.", "items": [{"url": "https://www.vicarius.io/vsociety/posts/zero-day-webp-vulnerability-cve-2023-4863", "domaine": "www.vicarius.io", "editeur": "", "etiquettes": [], "nom": "", "lien": true, "casse": false}]}], "liens_correction": [{"url": "https://en.bandisoft.com/honeyview/history/", "domaine": "en.bandisoft.com", "editeur": "", "etiquettes": ["Notes de version"], "nom": "", "lien": true, "casse": false, "groupe": "correctif", "groupe_titre": "Correctifs et versions corrigées"}, {"url": "https://github.com/webmproject/libwebp/commit/902bc9190331343b2017211debcec8d2ab87e17a", "domaine": "github.com", "editeur": "GitHub", "etiquettes": ["Correctif"], "nom": "", "lien": true, "casse": false, "groupe": "correctif", "groupe_titre": "Correctifs et versions corrigées"}, {"url": "https://github.com/webmproject/libwebp/releases/tag/v1.3.2", "domaine": "github.com", "editeur": "GitHub", "etiquettes": ["Notes de version"], "nom": "", "lien": true, "casse": false, "groupe": "correctif", "groupe_titre": "Correctifs et versions corrigées"}, {"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-4863", "domaine": "msrc.microsoft.com", "editeur": "Microsoft", "etiquettes": ["Correctif", "Avis d'un tiers"], "nom": "", "lien": true, "casse": false, "groupe": "correctif", "groupe_titre": "Correctifs et versions corrigées"}, {"url": "https://chromereleases.googleblog.com/2023/09/stable-channel-update-for-desktop_11.html", "domaine": "chromereleases.googleblog.com", "editeur": "Google Chrome", "etiquettes": ["Avis de l'éditeur"], "nom": "", "lien": true, "casse": false, "groupe": "avis_editeur", "groupe_titre": "Avis de sécurité de l'éditeur"}, {"url": "https://crbug.com/1479274", "domaine": "crbug.com", "editeur": "", "etiquettes": ["Suivi de ticket", "Avis de l'éditeur"], "nom": "", "lien": true, "casse": false, "groupe": "avis_editeur", "groupe_titre": "Avis de sécurité de l'éditeur"}], "nb_exploits": 4, "cvss": {"version": "3.1", "vecteur": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "metriques": [{"code": "AV", "nom": "Vecteur d'attaque", "valeur": "Réseau (à distance, y compris par Internet)", "brut": "N", "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": "Requise", "brut": "R", "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:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "specification": "https://www.first.org/cvss/v3.1/specification-document"}, "cvss4": null, "cwe": [{"id": "CWE-787", "nom": "Out-of-bounds Write", "url": "https://cwe.mitre.org/data/definitions/787.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": "2023-11-28", "role": "CISA Coordinator", "url": "https://www.cisa.gov/stakeholder-specific-vulnerability-categorization-ssvc"}, "chronologie": [{"date": "2023-09-09", "libelle": "Identifiant réservé", "qui": "Programme CVE"}, {"date": "2023-09-12", "libelle": "Publication de la vulnérabilité", "qui": "Chrome"}, {"date": "2023-09-13", "libelle": "Ajout au catalogue des failles exploitées", "qui": "CISA"}, {"date": "2023-10-04", "libelle": "Échéance de correction fixée par la CISA", "qui": "CISA"}, {"date": "2023-11-28", "libelle": "Décision SSVC publiée", "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-2023-4863", "description": "Fiche de référence : CVSS, CPE, références étiquetées."}, {"nom": "CVE.org", "url": "https://www.cve.org/CVERecord?id=CVE-2023-4863", "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-2023-4863", "description": "Entrée du catalogue des failles activement exploitées."}, {"nom": "FIRST EPSS", "url": "https://api.first.org/data/v1/epss?cve=CVE-2023-4863", "description": "Score de probabilité d'exploitation du jour."}, {"nom": "OSV.dev", "url": "https://osv.dev/vulnerability/CVE-2023-4863", "description": "Paquets open source concernés et versions corrigées."}, {"nom": "GitHub Advisory Database", "url": "https://github.com/advisories?query=CVE-2023-4863", "description": "Avis de sécurité des dépendances logicielles."}], "produits": [{"vendor": "Google", "product": "Chrome", "ranges": ["avant 116.0.5845.187"], "first_unaffected": ["116.0.5845.187"], "source": "NVD"}, {"vendor": "Fedoraproject", "product": "Fedora", "ranges": ["37", "38", "39"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Debian", "product": "Debian Linux", "ranges": ["10.0", "11.0", "12.0"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Mozilla", "product": "Firefox", "ranges": ["avant 102.15.1", "avant 117.0.1", "de 115.1.0 à 115.2.1 (exclue)"], "first_unaffected": ["102.15.1", "117.0.1", "115.2.1"], "source": "NVD"}, {"vendor": "Mozilla", "product": "Thunderbird", "ranges": ["avant 102.15.1", "de 115.0 à 115.2.2 (exclue)"], "first_unaffected": ["102.15.1", "115.2.2"], "source": "NVD"}, {"vendor": "Microsoft", "product": "Edge Chromium", "ranges": ["avant 116.0.1938.81"], "first_unaffected": ["116.0.1938.81"], "source": "NVD"}, {"vendor": "Microsoft", "product": "Teams", "ranges": ["avant 1.6.00.26463", "avant 1.6.00.26474"], "first_unaffected": ["1.6.00.26463", "1.6.00.26474"], "source": "NVD"}, {"vendor": "Microsoft", "product": "Webp Image Extension", "ranges": ["avant 1.0.62681.0"], "first_unaffected": ["1.0.62681.0"], "source": "NVD"}, {"vendor": "Webmproject", "product": "Libwebp", "ranges": ["avant 1.3.2"], "first_unaffected": ["1.3.2"], "source": "NVD"}, {"vendor": "Netapp", "product": "Active Iq Unified Manager", "ranges": ["toutes versions (selon NVD)"], "first_unaffected": [], "source": "NVD"}, {"vendor": "Bentley", "product": "Seequent Leapfrog", "ranges": ["avant 2023.2"], "first_unaffected": ["2023.2"], "source": "NVD"}, {"vendor": "Bandisoft", "product": "Honeyview", "ranges": ["avant 5.51"], "first_unaffected": ["5.51"], "source": "NVD"}, {"vendor": "Google", "product": "libwebp", "ranges": ["de 1.3.2 à 1.3.2 (exclue)"], "first_unaffected": ["1.3.2"], "source": "CVE.org"}], "notes_kev": ["https://chromereleases.googleblog.com/2023/09/stable-channel-update-for-desktop_11.html?m=1", "https://nvd.nist.gov/vuln/detail/CVE-2023-4863"]}, "consulted_at": "2026-10-07T05:08:40.289292+00:00"}