CVE-2017-12163

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A malicious client could use this flaw to dump server memory contents to a file on the samba share or to a shared printer, though the exact area of server memory cannot be controlled by the attacker."}, {"lang": "es", "value": "Se ha descubierto una vulnerabilidad de fuga de informaci\u00f3n en la manera en la que Samba, en versiones anteriores a la 4.4.16, versiones 4.5.x anteriores a la 4.5.14 y versiones 4.6.x anteriores a la 4.6.8, implement\u00f3 el protocolo SMB1. Un cliente malicioso podr\u00eda utilizar esta vulnerabilidad para volcar los contenidos de la memoria del servidor en un archivo en el almacenamiento de samba o en una impresora compartida, aunque el atacante no pueda controlar el \u00e1rea exacta de memoria del servidor."}], "id": "CVE-2017-12163", "lastModified": "2026-06-17T01:02:48.073", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "ADJACENT_NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 4.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:A/AC:L/Au:N/C:P/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 6.5, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": 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{"acknowledgement": "Red Hat would like to thank Jeremy Allison (Google), Stefan Metzmacher (SerNet), and Yihan Lian and Zhibin Hu (Qihoo 360 Gear Team) for reporting this issue.", "affected_release": [{"advisory": "RHSA-2017:2789", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "samba-0:3.6.23-45.el6_9", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2017-09-21T00:00:00Z"}, {"advisory": "RHSA-2017:2791", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "samba4-0:4.2.10-11.el6_9", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2017-09-21T00:00:00Z"}, {"advisory": "RHSA-2017:2790", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "samba-0:4.6.2-11.el7_4", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2017-09-21T00:00:00Z"}, {"advisory": "RHSA-2017:2858", "cpe": "cpe:/a:redhat:storage:3.3:samba:el6", "package": "samba-0:4.6.3-6.el6rhs", "product_name": "Red Hat Gluster Storage 3.3 for RHEL 6", "release_date": "2017-10-04T00:00:00Z"}, {"advisory": "RHSA-2017:2858", "cpe": "cpe:/a:redhat:storage:3.3:samba:el7", "package": "samba-0:4.6.3-6.el7rhgs", "product_name": "Red Hat Gluster Storage 3.3 for RHEL 7", "release_date": "2017-10-04T00:00:00Z"}], "bugzilla": {"description": "Samba: Server memory information leak over SMB1", "id": "1491206", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1491206"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.1", "cvss3_scoring_vector": "CVSS:3.0/AV:A/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N", "status": "verified"}, "cwe": "CWE-200", "details": ["An information leak flaw was found in the way SMB1 protocol was implemented by Samba before 4.4.16, 4.5.x before 4.5.14, and 4.6.x before 4.6.8. A malicious client could use this flaw to dump server memory contents to a file on the samba share or to a shared printer, though the exact area of server memory cannot be controlled by the attacker.", "An information leak flaw was found in the way SMB1 protocol was implemented by Samba. A malicious client could use this flaw to dump server memory contents to a file on the samba share or to a shared printer, though the exact area of server memory cannot be controlled by the attacker."], "mitigation": {"lang": "en:us", "value": "As this is an SMB1-only vulnerability, it can be avoided by setting the server to only use SMB2 via adding:\nserver min protocol = SMB2_02\nto the [global] section of your smb.conf and restarting smbd."}, "name": "CVE-2017-12163", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Will not fix", "package_name": "samba", "product_name": "Red Hat Enterprise Linux 5"}], "public_date": "2017-09-20T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2017-12163\nhttps://nvd.nist.gov/vuln/detail/CVE-2017-12163\nhttps://www.samba.org/samba/security/CVE-2017-12163.html"], "threat_severity": "Moderate"}

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