Astra Linux – Vulnerability in Samba

A vulnerability was discovered in Samba’s “rpcecho” development server, a non-Windows RPC server used to test Samba’s DCE/RPC stack components. This vulnerability stems from an RPC function that can be blocked indefinitely. The issue arises because the “rpcecho” service operates with only one...

Astra Linux – Vulnerability in Samba

A vulnerability related to information leaks was discovered in Samba’s LDAP server. Due to missing access control checks, a authenticated but unprivileged attacker could discover the names and preserved attributes of deleted objects in the LDAP store...

Astra Linux – Vulnerability in Samba

A flaw was discovered in the way Samba handles file/directory metadata. This flaw allows an authenticated attacker with appropriate permissions to read or modify share metadata, and to perform this operation outside of the share...

Astra Linux – Vulnerability in Samba

Netlogon RPC Elevation of Privilege Vulnerability...

Astra Linux – Vulnerability in Samba

All versions of Samba prior to 4.13.16 are vulnerable to a malicious client that can exploit the race condition of SMB1 or NFS to create a directory in an area of the server file system that is not exported under the share definition. Note that SMB1 must be enabled, or the share must also be...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ksmbd: A null pointer dereference issue in destroyprevioussession has been fixed. If the -PreviousSessionId is set during the Kerberos session setup phase, a null pointer dereference error may occur. Since sess-user is not set ye...

Astra Linux – Vulnerability in Samba

An infinite loop vulnerability was discovered in Samba’s mdssvc RPC service for Spotlight. When parsing Spotlight mdssvc RPC packets sent by the client, the core unmarshalling function slunpackloop failed to validate a field in the network packet that contains the count of elements in an array-li...

Astra Linux – Vulnerability in Samba

A flaw was discovered in Samba, particularly in the handling of the front-end WINS hook: NetBIOS names from registration packets are passed to a shell without proper validation or escaping. Unsanitized NetBIOS name data from WINS registration packets is inserted into shell commands and executed b...

Astra Linux – Vulnerability in Samba

A flaw was discovered in Samba. Users of Samba AD can cause the server to access uninitialized data through an LDAP add or modify request, typically resulting in a segmentation fault...

Astra Linux – Vulnerability in Samba

A flaw was discovered in Samba. The security vulnerability occurs when the 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 for...

Astra Linux – Vulnerability in Heimdal, Samba

Before version 7.7.1, Heimdal allowed remote attackers to execute arbitrary code due to an invalid free operation in the ASN.1 codec used by the Key Distribution Center KDC...

Astra Linux – Vulnerability in Samba

Kerberos acceptors need easy access to stable AD identifiers e.g., objectSid. Samba, as an AD DC, now provides a way for Linux applications to obtain a reliable SID and samAccountName from the issued tickets...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ksmbd: A possible reference count leak in smb2open has been fixed. The reference count of ACLs will cause a leak when memory allocation fails. This issue has been addressed by adding the missing posixaclrelease function...

Astra Linux – Vulnerability in Samba

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

Astra Linux – Vulnerability in Samba

A flaw was discovered in Samba. Spaces used in a string surrounding a domain name can, when ignored, cause invalid DN strings to write a zero-byte into out-of-bounds memory, resulting in a crash. The greatest threat of this vulnerability is to system availability...

Astra Linux – Vulnerability in Samba

A out-of-bounds read vulnerability was discovered in Samba due to insufficient length checks in the winbinddpamauthcrap.c file. When performing NTLM authentication, the client sends cryptographic challenges back to the server. These responses have varying lengths, and Winbind fails to check the...

Astra Linux – Vulnerability in Samba

A Type Confusion vulnerability was discovered in Samba’s mdssvc RPC service for Spotlight. When parsing Spotlight mdssvc RPC packets, one encoded data structure is a key-value style dictionary, where the keys are character strings, and the values can be any of the supported types in the mdssvc...

Astra Linux – Vulnerability in Samba

A vulnerability was discovered in Samba. A delegated administrator with permission to create objects in Active Directory can write to all attributes of the newly created object, including security-sensitive attributes, even after the object’s creation. This issue arises because the administrator...

Astra Linux – Vulnerability in Samba

A flaw was discovered in Samba. Some SMB1 write requests were not properly range-checked to ensure that the client had sent enough data to complete the write operation. As a result, the contents of the server’s memory were written to the file or printer, rather than the data provided by the clien...

Astra Linux – Vulnerability in Samba

The Samba vfsfruit module utilizes extended file attributes EA, xattr to enhance compatibility with Apple SMB clients and interoperability with Netatalk 3 AFP file servers. Samba versions prior to 4.13.17, 4.14.12, and 4.15.5, when vfsfruit was configured, allowed out-of-bounds heap read and writ...