CVE-2022-32743
Samba does not validate the Validated-DNS-Host-Name right for the dNSHostName attribute which could permit unprivileged users to write it.
- Auf 2:4.17.2+dfsg-3 aktualisieren
Veröffentlicht Aktualisiert
PatchFirst · Aktuelle Sicherheitslücken
Sicherheitslücken in samba · Seite 3
In den letzten 30 Tagen veröffentlichte Sicherheitslücken für samba: 0. Davon im KEV-Katalog: 0.
Sicherheitslücken: 205
CVE-2022-1615
In Samba, GnuTLS gnutls_rnd() can fail and give predictable random values.
- Auf 2:4.16.5+dfsg-2 aktualisieren
Veröffentlicht AktualisiertCVE-2022-0336
The Samba AD DC includes checks when adding service principals names (SPNs) to an account to ensure that SPNs do not alias with those already in the database. Some of these checks are able to be bypassed if an account modification re-adds an SPN that was previously present on that account, such as one added when a computer is joined to a domain. An attacker who has the ability to write to an account can exploit this to perform a denial-of-service attack by adding an SPN that matches an existing service. Additionally, an attacker who can intercept traffic can impersonate existing services, resulting in a loss of confidentiality and integrity.
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Veröffentlicht AktualisiertCVE-2022-32746
A flaw was found in the Samba AD LDAP server. The AD DC database audit logging module can access LDAP message values freed by a preceding database module, resulting in a use-after-free issue. This issue is only possible when modifying certain privileged attributes, such as userAccountControl.
- Auf 2:4.16.4+dfsg-1 aktualisieren
Veröffentlicht AktualisiertCVE-2022-32745
A flaw was found in Samba. Samba AD users can cause the server to access uninitialized data with an LDAP add or modify the request, usually resulting in a segmentation fault.
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Veröffentlicht AktualisiertCVE-2022-32744
A flaw was found in Samba. The KDC accepts kpasswd requests encrypted with any key known to it. By encrypting forged kpasswd requests with its own key, a user can change other users' passwords, enabling full domain takeover.
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Veröffentlicht AktualisiertCVE-2022-32742
A flaw was found in Samba. Some SMB1 write requests were not correctly range-checked to ensure the client had sent enough data to fulfill the write, allowing server memory contents to be written into the file (or printer) instead of client-supplied data. The client cannot control the area of the server memory written to the file (or printer).
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Veröffentlicht AktualisiertCVE-2022-2031
A flaw was found in Samba. The security vulnerability occurs when KDC and the kpasswd service share a single account and set of keys, allowing them to decrypt each other's tickets. A user who has been requested to change their password, can exploit this flaw to obtain and use tickets to other services.
- Auf 2:4.16.4+dfsg-1 aktualisieren
Veröffentlicht AktualisiertCVE-2021-3670
MaxQueryDuration not honoured in Samba AD DC LDAP
- Auf 2:4.16.0+dfsg-2 aktualisieren
Veröffentlicht AktualisiertCVE-2021-20316
A flaw was found in the way Samba handled file/directory metadata. This flaw allows an authenticated attacker with permissions to read or modify share metadata, to perform this operation outside of the share.
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Veröffentlicht AktualisiertCVE-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.
- Auf 2:4.13.14+dfsg-1 aktualisieren
Veröffentlicht AktualisiertCVE-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.
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Veröffentlicht AktualisiertCVE-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.
- Auf 2:4.13.14+dfsg-1 aktualisieren
Veröffentlicht AktualisiertCVE-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.
- Auf 2:4.16.0+dfsg-2 aktualisieren
Veröffentlicht AktualisiertCVE-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.
- Auf 2:4.16.0+dfsg-2 aktualisieren
Veröffentlicht AktualisiertCVE-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.
- Auf 2:4.13.14+dfsg-1 aktualisieren
Veröffentlicht AktualisiertCVE-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.
- Auf 2:4.13.14+dfsg-1 aktualisieren
Veröffentlicht AktualisiertCVE-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.
- Auf 2:4.13.14+dfsg-1 aktualisieren
Veröffentlicht AktualisiertCVE-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.
- Auf 2:4.13.14+dfsg-1 aktualisieren
Veröffentlicht AktualisiertCVE-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.
- Auf 2:4.13.14+dfsg-1 aktualisieren
Veröffentlicht Aktualisiert
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