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CVSS: 9.0EPSS: 0%CPEs: 33EXPL: 0

A flaw was found in the way Samba, as an Active Directory Domain Controller, implemented Kerberos name-based authentication. The Samba AD DC, could become confused about the user a ticket represents if it did not strictly require a Kerberos PAC and always use the SIDs found within. The result could include total domain compromise. Se encontró un fallo en la forma en que Samba, como controlador de dominio de Active Directory, implementaba la autenticación basada en nombres de Kerberos. El AD DC de Samba, podía confundirse sobre el usuario que representa un ticket si no requería estrictamente un PAC de Kerberos y siempre usaba los SIDs encontrados dentro. • https://bugzilla.redhat.com/show_bug.cgi?id=2019732 https://security.gentoo.org/glsa/202309-06 https://www.samba.org/samba/security/CVE-2020-25719.html https://access.redhat.com/security/cve/CVE-2020-25719 • CWE-287: Improper Authentication CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •

CVSS: 6.8EPSS: 0%CPEs: 43EXPL: 0

A flaw was found in the way samba implemented SMB1 authentication. An attacker could use this flaw to retrieve the plaintext password sent over the wire even if Kerberos authentication was required. Se ha encontrado un fallo en la forma en que Samba implementa la autenticación SMB1. Un atacante podría usar este fallo para recuperar la contraseña en texto plano enviada a través del cable, incluso si es requerida la autenticación Kerberos • https://bugzilla.redhat.com/show_bug.cgi?id=2019660 https://lists.debian.org/debian-lts-announce/2023/09/msg00013.html https://security.gentoo.org/glsa/202309-06 https://www.samba.org/samba/security/CVE-2016-2124.html https://access.redhat.com/security/cve/CVE-2016-2124 • CWE-287: Improper Authentication •

CVSS: 6.5EPSS: 0%CPEs: 7EXPL: 0

A null pointer de-reference was found in the way samba kerberos server handled missing sname in TGS-REQ (Ticket Granting Server - Request). An authenticated user could use this flaw to crash the samba server. Se ha encontrado una desreferencia de puntero null en la forma en que el servidor kerberos de Samba manejaba el sname faltante en TGS-REQ (Ticket Granting Server - Request). Un usuario autenticado podría usar este fallo para bloquear el servidor samba • https://bugzilla.redhat.com/show_bug.cgi?id=2013080%2C https://bugzilla.samba.org/show_bug.cgi?id=14770%2C https://github.com/heimdal/heimdal/commit/04171147948d0a3636bc6374181926f0fb2ec83a https://lists.debian.org/debian-lts-announce/2022/11/msg00034.html https://security.netapp.com/advisory/ntap-20221215-0002 https://security.netapp.com/advisory/ntap-20230216-0008 https://www.debian.org/security/2022/dsa-5287 • CWE-476: NULL Pointer Dereference •

CVSS: 6.8EPSS: 0%CPEs: 8EXPL: 0

A flaw was found in samba. The Samba smbd file server must map Windows group identities (SIDs) into unix group ids (gids). The code that performs this had a flaw that could allow it to read data beyond the end of the array in the case where a negative cache entry had been added to the mapping cache. This could cause the calling code to return those values into the process token that stores the group membership for a user. The highest threat from this vulnerability is to data confidentiality and integrity. • https://bugzilla.redhat.com/show_bug.cgi?id=1949442 https://lists.debian.org/debian-lts-announce/2021/05/msg00023.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3EP2VJ73OVBPVSOSTVOMGIEQA3MWF6F7 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZAF6L2M6CNAJ2YYYGXPWETTW5YLCWTVT https://security.gentoo.org/glsa/202105-22 https://security.netapp.com/advisory/ntap-20210430-0001 https://www.samba.org/samba/security/CVE-2021-20254 • CWE-125: Out-of-bounds Read •

CVSS: 7.5EPSS: 0%CPEs: 8EXPL: 0

A flaw was found in samba. Spaces used in a string around a domain name (DN), while supposed to be ignored, can cause invalid DN strings with spaces to instead write a zero-byte into out-of-bounds memory, resulting in a crash. The highest threat from this vulnerability is to system availability. Se ha encontrado un fallo en samba. Los espacios usados en una cadena alrededor de un nombre de dominio (DN), aunque se supone que deben ser ignorados, pueden causar cadenas DN no válidas con espacios en lugar de escribir un byte cero en la memoria fuera de límites, resultando en un bloqueo. • https://bugzilla.redhat.com/show_bug.cgi?id=1941400 https://lists.debian.org/debian-lts-announce/2021/03/msg00036.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VLZ74IF2N75VQSIHBL4B3P5WKWQCXSRY https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X5J3B6PN5XMXF3OHYBNHDKZ3XFSUGY4L https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZXP3ONIY6MB4C5LDZV4YL5KJCES3UX24 https://security.gentoo.org/glsa/202105-22 ht • CWE-125: Out-of-bounds Read •