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 found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: ksmbd: Fixed a use-after-free issue in Kerberos authentication. The introduction of sess-user = NULL was necessary to fix the dangling pointer created by ksmbdfreeuser. However, it is possible that another thread might be...

Astra Linux – Vulnerability in cifs-utils

It was discovered that cifs-utils’ mount.cifs function invoked a shell when requesting the Samba password, which could be exploited to inject arbitrary commands. An attacker who had special permissions, such as those through sudo rules, could use this vulnerability to escalate their privileges...

Astra Linux – Vulnerability in Linux 5.15

A flaw was discovered in the ksmbd component of the Linux kernel. A race condition between the smb2 close operation and logoff in multi-channel connections could lead to a use-after-free issue...

Astra Linux – Vulnerability in Samba

A flaw was discovered 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 the later fragments with their own data, thereby bypassing the signature requirements...

Astra Linux – Vulnerability in Samba

Samba does not validate the Validated-DNS-Host-Name property for the dNSHostName attribute, which may allow unprivileged users to modify it...

Astra Linux – Vulnerability in Samba

Windows Kerberos RC4-HMAC Elevation of Privilege Vulnerability...

Astra Linux – Vulnerability in Samba

Windows Kerberos Elevation of Privilege Vulnerability...

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

Netlogon RPC Elevation of Privilege Vulnerability...

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

Multiple flaws were identified in the way Samba AD DC implemented access control and compliance checks for stored data. An attacker could exploit these flaws to cause a complete compromise of the domain...

Astra Linux – Vulnerability in Samba

A flaw was discovered in the way Samba maps domain users to local users. An authenticated attacker could exploit this flaw to cause potential privilege escalation...

Astra Linux – Vulnerability in Samba

A flaw was discovered in Samba. The Samba smbd file server must map Windows group identities SIDs to Unix group IDs gids. The code responsible for this mapping contained a flaw that could allow it to read data beyond the end of the array, in the event that a negative cache entry was added to the...

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 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...

Astra Linux – Vulnerability in Samba

A flaw was discovered in Samba’s DNS server. A authenticated user could exploit this flaw to cause damage to the RPC server. This RPC server, which also supports protocols other than dnsserver, will be restarted after a short delay. However, it is easy for an authenticated, non-administrative...

Astra Linux – Vulnerability in Samba

A null pointer dereference flaw was detected in Samba’s Winbind service in versions prior to 4.11.15, before 4.12.9, and before 4.13.1. A local user could exploit this flaw to crash the Winbind service, resulting in a denial of service...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ksmbd: A out-of-bounds write vulnerability has been fixed in ksmbdvfsstreamwrite. The offset from the client can be a negative value, which may allow writing data beyond the boundaries of the allocated buffer...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: ksmbd: Fix for a use-after-free in smb2lock. If smblock-zerolen has a value, the -llist of smblock is not deleted, and flock is an old version. This could lead to a use-after-free during error handling routines...