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CVSS: 5.3EPSS: 1%CPEs: 12EXPL: 0

10 Dec 2019 — All Samba versions 4.x.x before 4.9.17, 4.10.x before 4.10.11 and 4.11.x before 4.11.3 have an issue, where the (poorly named) dnsserver RPC pipe provides administrative facilities to modify DNS records and zones. Samba, when acting as an AD DC, stores DNS records in LDAP. In AD, the default permissions on the DNS partition allow creation of new records by authenticated users. This is used for example to allow machines to self-register in DNS. If a DNS record was created that case-insensitively matched the ... • http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00038.html • CWE-276: Incorrect Default Permissions •

CVSS: 4.9EPSS: 0%CPEs: 5EXPL: 1

29 Oct 2019 — A flaw was found in samba 4.0.0 before samba 4.9.15 and samba 4.10.x before 4.10.10. An attacker can crash AD DC LDAP server via dirsync resulting in denial of service. Privilege escalation is not possible with this issue. Se encontró un fallo en samba versión 4.0.0 anteriores a samba 4.9.15 y samba versiones 4.10.x anteriores a 4.10.10. Un atacante puede bloquear el servidor AD DC LDAP por medio de la sincronización de directorios resultando en la denegación de servicio. • http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00015.html • CWE-476: NULL Pointer Dereference •

CVSS: 5.4EPSS: 0%CPEs: 7EXPL: 0

29 Oct 2019 — A flaw was found in Samba, all versions starting samba 4.5.0 before samba 4.9.15, samba 4.10.10, samba 4.11.2, in the way it handles a user password change or a new password for a samba user. The Samba Active Directory Domain Controller can be configured to use a custom script to check for password complexity. This configuration can fail to verify password complexity when non-ASCII characters are used in the password, which could lead to weak passwords being set for samba users, making it vulnerable to dict... • http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00015.html • CWE-305: Authentication Bypass by Primary Weakness CWE-521: Weak Password Requirements •

CVSS: 6.5EPSS: 0%CPEs: 5EXPL: 0

29 Oct 2019 — A flaw was found in the samba client, all samba versions before samba 4.11.2, 4.10.10 and 4.9.15, where a malicious server can supply a pathname to the client with separators. This could allow the client to access files and folders outside of the SMB network pathnames. An attacker could use this vulnerability to create files outside of the current working directory using the privileges of the client user. Se encontró un fallo en el cliente de samba, todas las versiones de samba anteriores a samba 4.11.2, 4.... • http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00015.html • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') •

CVSS: 5.5EPSS: 0%CPEs: 10EXPL: 0

08 Apr 2019 — A flaw was found in the way samba implemented an RPC endpoint emulating the Windows registry service API. An unprivileged attacker could use this flaw to create a new registry hive file anywhere they have unix permissions which could lead to creation of a new file in the Samba share. Versions before 4.8.11, 4.9.6 and 4.10.2 are vulnerable. Se encontró un fallo en la forma en que samba implementó RPC endpoint, que emula la API de servicios de registro de Windows. Un atacante sin privilegios podría usar este ... • http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00050.html • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') •

CVSS: 6.5EPSS: 1%CPEs: 6EXPL: 0

27 Feb 2019 — A flaw was found in the way an LDAP search expression could crash the shared LDAP server process of a samba AD DC in samba before version 4.10. An authenticated user, having read permissions on the LDAP server, could use this flaw to cause denial of service. Se ha detectado un fallo en la manera en la que una expresión de búsqueda LDAP podría provocar el cierre inesperado del proceso del servidor LDAP de un AD DC de samba en samba en versiones anteriores a la 4.10. Un usuario autenticado con permisos de lec... • http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00035.html • CWE-125: Out-of-bounds Read •

CVSS: 6.5EPSS: 1%CPEs: 10EXPL: 0

27 Nov 2018 — Samba from version 4.0.0 and before versions 4.7.12, 4.8.7, 4.9.3 is vulnerable to a denial of service. During the processing of an LDAP search before Samba's AD DC returns the LDAP entries to the client, the entries are cached in a single memory object with a maximum size of 256MB. When this size is reached, the Samba process providing the LDAP service will follow the NULL pointer, terminating the process. There is no further vulnerability associated with this issue, merely a denial of service. Samba, desd... • http://www.securityfocus.com/bid/106027 • CWE-476: NULL Pointer Dereference •

CVSS: 6.5EPSS: 0%CPEs: 9EXPL: 0

27 Nov 2018 — Samba from version 4.3.0 and before versions 4.7.12, 4.8.7 and 4.9.3 are vulnerable to a denial of service. When configured to accept smart-card authentication, Samba's KDC will call talloc_free() twice on the same memory if the principal in a validly signed certificate does not match the principal in the AS-REQ. This is only possible after authentication with a trusted certificate. talloc is robust against further corruption from a double-free with talloc_free() and directly calls abort(), terminating the ... • http://www.securityfocus.com/bid/106023 • CWE-415: Double Free CWE-416: Use After Free •

CVSS: 6.5EPSS: 0%CPEs: 10EXPL: 1

27 Nov 2018 — A denial of service vulnerability was discovered in Samba's LDAP server before versions 4.7.12, 4.8.7, and 4.9.3. A CNAME loop could lead to infinite recursion in the server. An unprivileged local attacker could create such an entry, leading to denial of service. Se ha descubierto una vulnerabilidad de denegación de servicio (DoS) en el servidor LDAP de Samba en versiones anteriores a la 4.7.12, 4.8.7, y 4.9.3. Un bucle CNAME podría conducir a una recursión infinita en el servidor. • http://www.securityfocus.com/bid/106022 • CWE-400: Uncontrolled Resource Consumption CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •

CVSS: 8.8EPSS: 0%CPEs: 12EXPL: 0

14 Aug 2018 — A heap-buffer overflow was found in the way samba clients processed extra long filename in a directory listing. A malicious samba server could use this flaw to cause arbitrary code execution on a samba client. Samba versions before 4.6.16, 4.7.9 and 4.8.4 are vulnerable. Se ha descubierto un desbordamiento de búfer en la manera en la que los clientes de samba procesaban nombres de archivo excesivamente largos en un listado de directorios. Un servidor samba malicioso podría utilizar este defecto para provoca... • http://www.securityfocus.com/bid/105085 • CWE-20: Improper Input Validation CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •