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Search Parameters:
  • Results Type: Overview
  • Keyword (text search): cpe:2.3:a:samba:samba:4.0.9:*:*:*:*:*:*:*
  • CPE Name Search: true
There are 74 matching records.
Displaying matches 1 through 20.
Vuln ID Summary CVSS Severity
CVE-2021-3738

In DCE/RPC it is possible to share the handles (cookies for resource state) between multiple connections via a mechanism called 'association groups'. These handles can reference connections to our sam.ldb database. However while the database was correctly shared, the user credentials state was only pointed at, and when one connection within that association group ended, the database would be left pointing at an invalid 'struct session_info'. The most likely outcome here is a crash, but it is possible that the use-after-free could instead allow different user state to be pointed at and this might allow more privileged access.

Published: March 02, 2022; 6:15:09 PM -0500
V3.1: 8.8 HIGH
V2.0: 6.5 MEDIUM
CVE-2021-44141

All versions of Samba prior to 4.15.5 are vulnerable to a malicious client using a server symlink to determine if a file or directory exists in an area of the server file system not exported under the share definition. SMB1 with unix extensions has to be enabled in order for this attack to succeed.

Published: February 21, 2022; 1:15:08 PM -0500
V3.1: 4.3 MEDIUM
V2.0: 3.5 LOW
CVE-2021-44142

The Samba vfs_fruit module uses extended file attributes (EA, xattr) to provide "...enhanced compatibility with Apple SMB clients and interoperability with a Netatalk 3 AFP fileserver." Samba versions prior to 4.13.17, 4.14.12 and 4.15.5 with vfs_fruit configured allow out-of-bounds heap read and write via specially crafted extended file attributes. A remote attacker with write access to extended file attributes can execute arbitrary code with the privileges of smbd, typically root.

Published: February 21, 2022; 10:15:07 AM -0500
V3.1: 8.8 HIGH
V2.0: 9.0 HIGH
CVE-2020-25722

Multiple flaws were found in the way samba AD DC implemented access and conformance checking of stored data. An attacker could use this flaw to cause total domain compromise.

Published: February 18, 2022; 1:15:08 PM -0500
V3.1: 8.8 HIGH
V2.0: 6.5 MEDIUM
CVE-2020-25719

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.

Published: February 18, 2022; 1:15:08 PM -0500
V3.1: 7.2 HIGH
V2.0: 9.0 HIGH
CVE-2020-25718

A flaw was found in the way samba, as an Active Directory Domain Controller, is able to support an RODC (read-only domain controller). This would allow an RODC to print administrator tickets.

Published: February 18, 2022; 1:15:08 PM -0500
V3.1: 8.8 HIGH
V2.0: 6.5 MEDIUM
CVE-2020-25717

A flaw was found in the way Samba maps domain users to local users. An authenticated attacker could use this flaw to cause possible privilege escalation.

Published: February 18, 2022; 1:15:08 PM -0500
V3.1: 8.1 HIGH
V2.0: 8.5 HIGH
CVE-2016-2124

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.

Published: February 18, 2022; 1:15:08 PM -0500
V3.1: 5.9 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2021-43566

All versions of Samba prior to 4.13.16 are vulnerable to a malicious client using an SMB1 or NFS race to allow a directory to be created in an area of the server file system not exported under the share definition. Note that SMB1 has to be enabled, or the share also available via NFS in order for this attack to succeed.

Published: January 11, 2022; 11:15:07 AM -0500
V3.1: 2.5 LOW
V2.0: 1.2 LOW
CVE-2021-3671

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.

Published: October 12, 2021; 2:15:08 PM -0400
V3.1: 6.5 MEDIUM
V2.0: 4.0 MEDIUM
CVE-2020-27840

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.

Published: May 12, 2021; 11:15:07 AM -0400
V3.1: 7.5 HIGH
V2.0: 5.0 MEDIUM
CVE-2021-20277

A flaw was found in Samba's libldb. Multiple, consecutive leading spaces in an LDAP attribute can lead to an out-of-bounds memory write, leading to a crash of the LDAP server process handling the request. The highest threat from this vulnerability is to system availability.

Published: May 12, 2021; 10:15:11 AM -0400
V3.1: 7.5 HIGH
V2.0: 5.0 MEDIUM
CVE-2021-20254

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.

Published: May 05, 2021; 10:15:07 AM -0400
V3.1: 6.8 MEDIUM
V2.0: 4.9 MEDIUM
CVE-2020-14318

A flaw was found in the way samba handled file and directory permissions. An authenticated user could use this flaw to gain access to certain file and directory information which otherwise would be unavailable to the attacker.

Published: December 03, 2020; 11:15:12 AM -0500
V3.1: 4.3 MEDIUM
V2.0: 4.0 MEDIUM
CVE-2020-14383

A flaw was found in samba's DNS server. An authenticated user could use this flaw to the RPC server to crash. This RPC server, which also serves protocols other than dnsserver, will be restarted after a short delay, but it is easy for an authenticated non administrative attacker to crash it again as soon as it returns. The Samba DNS server itself will continue to operate, but many RPC services will not.

Published: December 01, 2020; 8:15:12 PM -0500
V3.1: 6.5 MEDIUM
V2.0: 4.0 MEDIUM
CVE-2020-1472

An elevation of privilege vulnerability exists when an attacker establishes a vulnerable Netlogon secure channel connection to a domain controller, using the Netlogon Remote Protocol (MS-NRPC), aka 'Netlogon Elevation of Privilege Vulnerability'.

Published: August 17, 2020; 3:15:15 PM -0400
V3.1: 10.0 CRITICAL
V2.0: 9.3 HIGH
CVE-2020-10745

A flaw was found in all Samba versions before 4.10.17, before 4.11.11 and before 4.12.4 in the way it processed NetBios over TCP/IP. This flaw allows a remote attacker could to cause the Samba server to consume excessive CPU use, resulting in a denial of service. This highest threat from this vulnerability is to system availability.

Published: July 07, 2020; 10:15:11 AM -0400
V3.1: 7.5 HIGH
V2.0: 7.8 HIGH
CVE-2020-10704

A flaw was found when using samba as an Active Directory Domain Controller. Due to the way samba handles certain requests as an Active Directory Domain Controller LDAP server, an unauthorized user can cause a stack overflow leading to a denial of service. The highest threat from this vulnerability is to system availability. This issue affects all samba versions before 4.10.15, before 4.11.8 and before 4.12.2.

Published: May 06, 2020; 10:15:10 AM -0400
V3.1: 7.5 HIGH
V2.0: 5.0 MEDIUM
CVE-2020-10700

A use-after-free flaw was found in the way samba AD DC LDAP servers, handled 'Paged Results' control is combined with the 'ASQ' control. A malicious user in a samba AD could use this flaw to cause denial of service. This issue affects all samba versions before 4.10.15, before 4.11.8 and before 4.12.2.

Published: May 04, 2020; 5:15:11 PM -0400
V3.1: 5.3 MEDIUM
V2.0: 2.6 LOW
CVE-2019-14870

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 S4U (MS-SFU) Kerberos delegation model includes a feature allowing for a subset of clients to be opted out of constrained delegation in any way, either S4U2Self or regular Kerberos authentication, by forcing all tickets for these clients to be non-forwardable. In AD this is implemented by a user attribute delegation_not_allowed (aka not-delegated), which translates to disallow-forwardable. However the Samba AD DC does not do that for S4U2Self and does set the forwardable flag even if the impersonated client has the not-delegated flag set.

Published: December 10, 2019; 6:15:10 PM -0500
V3.1: 5.4 MEDIUM
V2.0: 6.4 MEDIUM