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| purl | pkg:deb/ubuntu/samba@2:4.3.11%2Bdfsg-0ubuntu0.16.04.17 |
| Next non-vulnerable version | 2:4.13.14+dfsg-0ubuntu0.20.04.1 |
| Latest non-vulnerable version | 2:4.13.14+dfsg-0ubuntu0.20.04.1 |
| Risk | 10.0 |
| Vulnerability | Summary | Fixed by |
|---|---|---|
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VCID-2d3e-97ua-aaap
Aliases: CVE-2019-3880 |
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. |
Affected by 32 other vulnerabilities. |
|
VCID-4cya-tv75-aaaj
Aliases: CVE-2019-12436 |
Samba 4.10.x before 4.10.5 has a NULL pointer dereference, leading to an AD DC LDAP server Denial of Service. This is related to an attacker using the paged search control. The attacker must have directory read access in order to attempt an exploit. |
Affected by 28 other vulnerabilities. |
|
VCID-5pua-r4b1-aaap
Aliases: CVE-2018-16851 |
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. |
Affected by 33 other vulnerabilities. |
|
VCID-5wds-gpss-aaaf
Aliases: CVE-2019-14861 |
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 name of the zone, the ldb_qsort() and dns_name_compare() routines could be confused into reading memory prior to the list of DNS entries when responding to DnssrvEnumRecords() or DnssrvEnumRecords2() and so following invalid memory as a pointer. |
Affected by 23 other vulnerabilities. |
|
VCID-7g9g-ydhg-aaae
Aliases: CVE-2019-14902 |
There is an issue in all samba 4.11.x versions before 4.11.5, all samba 4.10.x versions before 4.10.12 and all samba 4.9.x versions before 4.9.18, where the removal of the right to create or modify a subtree would not automatically be taken away on all domain controllers. |
Affected by 20 other vulnerabilities. Affected by 20 other vulnerabilities. |
|
VCID-7znh-k719-aaar
Aliases: 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. |
Affected by 10 other vulnerabilities. |
|
VCID-8716-eb6d-aaac
Aliases: 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. |
Affected by 10 other vulnerabilities. |
|
VCID-8bsx-b5u2-aaar
Aliases: CVE-2019-10218 |
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. |
Affected by 25 other vulnerabilities. |
|
VCID-9tte-rerz-aaah
Aliases: CVE-2018-10858 |
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. |
Affected by 36 other vulnerabilities. |
|
VCID-bv3c-946s-aaaf
Aliases: 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. |
Affected by 19 other vulnerabilities. Affected by 15 other vulnerabilities. |
|
VCID-c19s-mkvt-aaae
Aliases: 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. |
Affected by 0 other vulnerabilities. |
|
VCID-ca4y-g2b2-aaah
Aliases: 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. |
Affected by 23 other vulnerabilities. |
|
VCID-dc8e-1wpk-aaak
Aliases: 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). An attacker who successfully exploited the vulnerability could run a specially crafted application on a device on the network. To exploit the vulnerability, an unauthenticated attacker would be required to use MS-NRPC to connect to a domain controller to obtain domain administrator access. Microsoft is addressing the vulnerability in a phased two-part rollout. These updates address the vulnerability by modifying how Netlogon handles the usage of Netlogon secure channels. For guidelines on how to manage the changes required for this vulnerability and more information on the phased rollout, see How to manage the changes in Netlogon secure channel connections associated with CVE-2020-1472 (updated September 28, 2020). When the second phase of Windows updates become available in Q1 2021, customers will be notified via a revision to this security vulnerability. If you wish to be notified when these updates are released, we recommend that you register for the security notifications mailer to be alerted of content changes to this advisory. See Microsoft Technical Security Notifications. |
Affected by 13 other vulnerabilities. |
|
VCID-g92v-a8hg-aaaf
Aliases: CVE-2018-1140 |
A missing input sanitization flaw was found in the implementation of LDP database used for the LDAP server. An attacker could use this flaw to cause a denial of service against a samba server, used as a Active Directory Domain Controller. All versions of Samba from 4.8.0 onwards are vulnerable |
Affected by 40 other vulnerabilities. |
|
VCID-gk9s-j9p8-aaab
Aliases: CVE-2018-16841 |
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 KDC process. |
Affected by 33 other vulnerabilities. |
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VCID-j27y-g1w7-aaaa
Aliases: 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. |
Affected by 0 other vulnerabilities. |
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VCID-k67p-k7xv-aaae
Aliases: CVE-2019-12435 |
Samba 4.9.x before 4.9.9 and 4.10.x before 4.10.5 has a NULL pointer dereference, leading to Denial of Service. This is related to the AD DC DNS management server (dnsserver) RPC server process. |
Affected by 28 other vulnerabilities. |
|
VCID-m7gw-h43m-aaag
Aliases: 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. |
Affected by 0 other vulnerabilities. |
|
VCID-mgzj-9vj2-aaad
Aliases: 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. |
Affected by 9 other vulnerabilities. |
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VCID-nu1b-6qb8-aaah
Aliases: 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. |
Affected by 20 other vulnerabilities. Affected by 18 other vulnerabilities. |
|
VCID-nvw6-3gw5-aaaa
Aliases: CVE-2019-14847 |
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. |
Affected by 25 other vulnerabilities. |
|
VCID-ny1w-v2d1-aaaj
Aliases: CVE-2021-23192 |
A flaw was found in the way samba implemented DCE/RPC. If a client to a Samba server sent a very large DCE/RPC request, and chose to fragment it, an attacker could replace later fragments with their own data, bypassing the signature requirements. |
Affected by 0 other vulnerabilities. |
|
VCID-pe83-8mqu-aaaf
Aliases: CVE-2020-10760 |
A use-after-free flaw was found in all samba LDAP server versions before 4.10.17, before 4.11.11, before 4.12.4 used in a AC DC configuration. A Samba LDAP user could use this flaw to crash samba. |
Affected by 19 other vulnerabilities. Affected by 15 other vulnerabilities. |
|
VCID-pf2d-vwsu-aaah
Aliases: CVE-2018-16860 |
A flaw was found in samba's Heimdal KDC implementation, versions 4.8.x up to, excluding 4.8.12, 4.9.x up to, excluding 4.9.8 and 4.10.x up to, excluding 4.10.3, when used in AD DC mode. A man in the middle attacker could use this flaw to intercept the request to the KDC and replace the user name (principal) in the request with any desired user name (principal) that exists in the KDC effectively obtaining a ticket for that principal. |
Affected by 31 other vulnerabilities. |
|
VCID-pmx6-w74j-aaap
Aliases: CVE-2019-10197 |
A flaw was found in samba versions 4.9.x up to 4.9.13, samba 4.10.x up to 4.10.8 and samba 4.11.x up to 4.11.0rc3, when certain parameters were set in the samba configuration file. An unauthenticated attacker could use this flaw to escape the shared directory and access the contents of directories outside the share. |
Affected by 28 other vulnerabilities. |
|
VCID-qeba-1mw8-aaaq
Aliases: 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. |
Affected by 20 other vulnerabilities. Affected by 18 other vulnerabilities. |
|
VCID-qmfb-r5jc-aaaq
Aliases: 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. |
Affected by 0 other vulnerabilities. |
|
VCID-r2ub-pwv4-aaaa
Aliases: 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. |
Affected by 0 other vulnerabilities. |
|
VCID-sm2p-s4x5-aaae
Aliases: 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. |
Affected by 0 other vulnerabilities. |
|
VCID-svdc-81bn-aaak
Aliases: 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. |
Affected by 0 other vulnerabilities. |
|
VCID-sxbn-732u-aaaa
Aliases: CVE-2020-10730 |
A NULL pointer dereference, or possible use-after-free flaw was found in Samba AD LDAP server in versions before 4.10.17, before 4.11.11 and before 4.12.4. Although some versions of Samba shipped with Red Hat Enterprise Linux do not support Samba in AD mode, the affected code is shipped with the libldb package. This flaw allows an authenticated user to possibly trigger a use-after-free or NULL pointer dereference. The highest threat from this vulnerability is to system availability. |
Affected by 19 other vulnerabilities. Affected by 15 other vulnerabilities. |
|
VCID-t8qc-uqjq-aaah
Aliases: CVE-2019-19344 |
There is a use-after-free issue in all samba 4.9.x versions before 4.9.18, all samba 4.10.x versions before 4.10.12 and all samba 4.11.x versions before 4.11.5, essentially due to a call to realloc() while other local variables still point at the original buffer. |
Affected by 20 other vulnerabilities. |
|
VCID-tbht-4b8p-aaap
Aliases: CVE-2019-14907 |
All samba versions 4.9.x before 4.9.18, 4.10.x before 4.10.12 and 4.11.x before 4.11.5 have an issue where if it is set with "log level = 3" (or above) then the string obtained from the client, after a failed character conversion, is printed. Such strings can be provided during the NTLMSSP authentication exchange. In the Samba AD DC in particular, this may cause a long-lived process(such as the RPC server) to terminate. (In the file server case, the most likely target, smbd, operates as process-per-client and so a crash there is harmless). |
Affected by 20 other vulnerabilities. Affected by 20 other vulnerabilities. |
|
VCID-u9ma-phac-aaaj
Aliases: CVE-2018-1139 |
A flaw was found in the way samba before 4.7.9 and 4.8.4 allowed the use of weak NTLMv1 authentication even when NTLMv1 was explicitly disabled. A man-in-the-middle attacker could use this flaw to read the credential and other details passed between the samba server and client. |
Affected by 36 other vulnerabilities. |
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VCID-udnn-fwtr-aaaf
Aliases: CVE-2018-10919 |
The Samba Active Directory LDAP server was vulnerable to an information disclosure flaw because of missing access control checks. An authenticated attacker could use this flaw to extract confidential attribute values using LDAP search expressions. Samba versions before 4.6.16, 4.7.9 and 4.8.4 are vulnerable. |
Affected by 36 other vulnerabilities. |
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VCID-v2rv-7sbx-aaab
Aliases: CVE-2019-14833 |
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 dictionary attacks. |
Affected by 25 other vulnerabilities. |
|
VCID-vpev-5j58-aaae
Aliases: CVE-2018-14629 |
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. |
Affected by 33 other vulnerabilities. |
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VCID-we9h-xchf-aaam
Aliases: CVE-2020-25721 |
Kerberos acceptors need easy access to stable AD identifiers (eg objectSid). Samba as an AD DC now provides a way for Linux applications to obtain a reliable SID (and samAccountName) in issued tickets. |
Affected by 0 other vulnerabilities. |
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VCID-x5un-3bxk-aaac
Aliases: CVE-2020-14323 |
A null pointer dereference flaw was found in samba's Winbind service in versions before 4.11.15, before 4.12.9 and before 4.13.1. A local user could use this flaw to crash the winbind service causing denial of service. |
Affected by 10 other vulnerabilities. |
|
VCID-xqha-fd6g-aaaa
Aliases: CVE-2020-14303 |
A flaw was found in the AD DC NBT server in all Samba versions before 4.10.17, before 4.11.11 and before 4.12.4. A samba user could send an empty UDP packet to cause the samba server to crash. |
Affected by 13 other vulnerabilities. |
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VCID-z6h3-48rq-aaab
Aliases: CVE-2018-10918 |
A null pointer dereference flaw was found in the way samba checked database outputs from the LDB database layer. An authenticated attacker could use this flaw to crash a samba server in an Active Directory Domain Controller configuration. Samba versions before 4.7.9 and 4.8.4 are vulnerable. |
Affected by 36 other vulnerabilities. |
| Vulnerability | Summary | Aliases |
|---|---|---|
| This package is not known to fix vulnerabilities. | ||
| Date | Actor | Action | Vulnerability | Source | VulnerableCode Version |
|---|