CVE-2023-3961

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of a Pathname to a Restricted Directory", "lang": "en", "type": "CWE"}]}], "x_redhatCweChain": "CWE-22: Improper Limitation of a Pathname to a Restricted Directory", "workarounds": [{"lang": "en", "value": "Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}], "timeline": [{"lang": "en", "time": "2023-10-03T00:00:00.000Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2023-10-10T00:00:00.000Z", "value": "Made public."}], "providerMetadata": {"orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "shortName": "redhat", "dateUpdated": "2026-11-07T11:32:44.499Z"}, "x_generator": {"engine": "cvelib 1.8.0"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T07:08:50.667Z"}, "title": "CVE Program Container", "references": [{"url": 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processing client pipe names connecting to Unix domain sockets within a private directory. Samba typically uses this mechanism to connect SMB clients to remote procedure call (RPC) services like SAMR LSA or SPOOLSS, which Samba initiates on demand. However, due to inadequate sanitization of incoming client pipe names, allowing a client to send a pipe name containing Unix directory traversal characters (../). This could result in SMB clients connecting as root to Unix domain sockets outside the private directory. If an attacker or client managed to send a pipe name resolving to an external service using an existing Unix domain socket, it could potentially lead to unauthorized access to the service and consequential adverse events, including compromise or service crashes."}, {"lang": "es", "value": "Se identific\u00f3 una vulnerabilidad de path traversal en Samba al procesar nombres de canalizaciones de clientes que se conectan a sockets de dominio Unix dentro de un directorio privado. Samba normalmente usa este mecanismo para conectar clientes SMB a servicios de Remote Procedure Call (RPC) como SAMR LSA o SPOOLSS, que Samba inicia bajo demanda. Sin embargo, debido a una sanitizaci\u00f3n inadecuada de los nombres de canalizaci\u00f3n del cliente entrante, se permite que un cliente env\u00ede un nombre de canalizaci\u00f3n que contenga caracteres transversales del directorio Unix (../). Esto podr\u00eda provocar que los clientes SMB se conecten como root a sockets de dominio Unix fuera del directorio privado. Si un atacante o cliente lograra enviar un nombre de canalizaci\u00f3n a un servicio externo utilizando un socket de dominio Unix existente, podr\u00eda provocar un acceso no autorizado al servicio y los consiguientes eventos adversos, incluido el compromiso o la ca\u00edda del servicio."}], "id": "CVE-2023-3961", "lastModified": "2026-11-07T12:17:32.990", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.2, "source": "secalert@redhat.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2023-11-03T13:15:08.723", "references": [{"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2023:6209"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2023:6744"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2023:7371"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2023:7408"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2023:7464"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2023:7467"}, {"source": "secalert@redhat.com", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/security/cve/CVE-2023-3961"}, {"source": "secalert@redhat.com", "tags": ["Issue Tracking"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2241881"}, {"source": "secalert@redhat.com", "tags": ["Exploit", "Issue Tracking"], "url": "https://bugzilla.samba.org/show_bug.cgi?id=15422"}, {"source": "secalert@redhat.com", "tags": ["Vendor Advisory"], "url": "https://www.samba.org/samba/security/CVE-2023-3961.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2023:6209"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2023:6744"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://access.redhat.com/errata/RHSA-2023:7371"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://access.redhat.com/errata/RHSA-2023:7408"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://access.redhat.com/errata/RHSA-2023:7464"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://access.redhat.com/errata/RHSA-2023:7467"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/security/cve/CVE-2023-3961"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2241881"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Issue Tracking"], "url": "https://bugzilla.samba.org/show_bug.cgi?id=15422"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZUMVALLFFDFC53JZMUWA6HPD7HUGAP5I/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://security.netapp.com/advisory/ntap-20231124-0002/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.samba.org/samba/security/CVE-2023-3961.html"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}], "source": "secalert@redhat.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-22"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2023:7467", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "samba-0:4.18.6-2.el8_9", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2023-11-22T00:00:00Z"}, {"advisory": "RHSA-2023:7467", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "samba-0:4.18.6-2.el8_9", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2023-11-22T00:00:00Z"}, {"advisory": "RHSA-2023:7408", "cpe": "cpe:/a:redhat:rhel_eus:8.6", "package": "samba-0:4.15.5-13.el8_6", "product_name": "Red Hat Enterprise Linux 8.6 Extended Update Support", "release_date": "2023-11-21T00:00:00Z"}, {"advisory": "RHSA-2023:7464", "cpe": "cpe:/a:redhat:rhel_eus:8.8", "package": "samba-0:4.17.5-4.el8_8", "product_name": "Red Hat Enterprise Linux 8.8 Extended Update Support", "release_date": "2023-11-22T00:00:00Z"}, {"advisory": "RHSA-2023:6744", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "samba-0:4.18.6-101.el9_3", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-11-07T00:00:00Z"}, {"advisory": "RHSA-2023:6744", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "samba-0:4.18.6-101.el9_3", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2023-11-07T00:00:00Z"}, {"advisory": "RHSA-2023:6209", "cpe": "cpe:/a:redhat:rhel_eus:9.0", "package": "samba-0:4.15.5-111.el9_0", "product_name": "Red Hat Enterprise Linux 9.0 Extended Update Support", "release_date": "2023-10-31T00:00:00Z"}, {"advisory": "RHSA-2023:7371", "cpe": "cpe:/a:redhat:rhel_eus:9.2", "package": "samba-0:4.17.5-104.el9_2", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2023-11-21T00:00:00Z"}, {"advisory": "RHSA-2023:7408", "cpe": "cpe:/o:redhat:rhev_hypervisor:4.4::el8", "package": "samba-0:4.15.5-13.el8_6", "product_name": "Red Hat Virtualization 4 for Red Hat Enterprise Linux 8", "release_date": "2023-11-21T00:00:00Z"}], "bugzilla": {"description": "samba: smbd allows client access to unix domain sockets on the file system as root", "id": "2241881", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2241881"}, "csaw": false, "cvss3": {"cvss3_base_score": "9.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H", "status": "verified"}, "cwe": "CWE-22", "details": ["A path traversal vulnerability was identified in Samba when processing client pipe names connecting to Unix domain sockets within a private directory. Samba typically uses this mechanism to connect SMB clients to remote procedure call (RPC) services like SAMR LSA or SPOOLSS, which Samba initiates on demand. However, due to inadequate sanitization of incoming client pipe names, allowing a client to send a pipe name containing Unix directory traversal characters (../). This could result in SMB clients connecting as root to Unix domain sockets outside the private directory. If an attacker or client managed to send a pipe name resolving to an external service using an existing Unix domain socket, it could potentially lead to unauthorized access to the service and consequential adverse events, including compromise or service crashes.", "A path traversal vulnerability was identified in Samba when processing client pipe names connecting to Unix domain sockets within a private directory. Samba typically uses this mechanism to connect SMB clients to remote procedure call (RPC) services like SAMR LSA or SPOOLSS, which Samba initiates on demand. However, due to inadequate sanitization of incoming client pipe names, allowing a client to send a pipe name containing Unix directory traversal characters (../). This could result in SMB clients connecting as root to Unix domain sockets outside the private directory. If an attacker or client managed to send a pipe name resolving to an external service using an existing Unix domain socket, it could potentially lead to unauthorized access to the service and consequential adverse events, including compromise or service crashes."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2023-3961", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "samba", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "samba4", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "samba", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/a:redhat:storage:3", "fix_state": "Affected", "package_name": "samba", "product_name": "Red Hat Storage 3"}], "public_date": "2023-10-10T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-3961\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-3961\nhttps://bugzilla.samba.org/show_bug.cgi?id=15422\nhttps://www.samba.org/samba/security/CVE-2023-3961.html"], "threat_severity": "Moderate"}

{}