According to the versions of the samba packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - 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. (CVE-2021-44142)

  - 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. (CVE-2021-43566)

  - 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. (CVE-2022-0336)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote SUSE Linux SUSE15 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2022:0283-1 advisory.

  - 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.
    (CVE-2020-27840)

  - 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. (CVE-2021-20277)

  - ec_verify in kdc/kdc_preauth_ec.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before     1.18.4 and 1.19.x before 1.19.2 allows remote attackers to cause a NULL pointer dereference and daemon     crash. This occurs because a return value is not properly managed in a certain situation. (CVE-2021-36222)

  - 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. (CVE-2021-43566)

  - 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. Clients that     have write access to the exported part of the file system under a share via SMB1 unix extensions or via     NFS can create symlinks that point to arbitrary files or directories on the server filesystem. Clients can     then use SMB1 unix extension information queries to determine if the target of the symlink exists or not     by examining error codes returned from the smbd server. There is no ability to access these files or     directories, only to determine if they exist or not. If SMB1 is turned off and only SMB2 is used, or unix     extensions are not enabled then there is no way to discover if a symlink points to a valid target or not     via SMB2. For this reason, even if symlinks are created via NFS, if the Samba server does not allow SMB1     with unix extensions there is no way to exploit this bug. Finding out what files or directories exist on a     file server can help attackers guess system user names or the exact operating system release and     applications running on the server hosting Samba which may help mount further attacks. SMB1 has been     disabled on Samba since version 4.11.0 and onwards. Exploitation of this bug has not been seen in the     wild. (CVE-2021-44141)

  - samba: Out-of-bounds heap read/write vulnerability in VFS module vfs_fruit allows code execution     (CVE-2021-44142)

  - 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. (CVE-2022-0336)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Ubuntu 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5260-1 advisory.

    Orange Tsai discovered that the Samba vfs_fruit module incorrectly handled certain memory operations. A     remote attacker could use this issue to cause Samba to crash, resulting in a denial of service, or     possibly execute arbitrary code as root. (CVE-2021-44142)

    Michael Hanselmann discovered that Samba incorrectly created directories. In certain configurations, a     remote attacker could possibly create a directory on the server outside of the shared directory.
    (CVE-2021-43566)

    Kees van Vloten discovered that Samba incorrectly handled certain aliased SPN checks. A remote attacker     could possibly use this issue to impersonate services. (CVE-2022-0336)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 10 / 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-5071 advisory.

  - 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. (CVE-2021-44142)

  - 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. (CVE-2020-25717)

  - 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. (CVE-2022-0336)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 8579074c-839f-11ec-a3b2-005056a311d1 advisory.

  - 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. (CVE-2021-44142)

  - 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. (CVE-2021-43566)

  - 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.
    (CVE-2021-44141)

  - 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. (CVE-2022-0336)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2022-2022-022 advisory.

    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.
    (CVE-2016-2124)

    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. (CVE-2020-25717)

    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. (CVE-2020-25718)

    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. (CVE-2020-25719)

    Kerberos acceptors need easy access to stableAD identifiers (eg objectSid) (CVE-2020-25721)

    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. (CVE-2020-25722)

    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. (CVE-2021-20316)

    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. (CVE-2021-23192)

    Use after free in Samba AD DC RPC server (CVE-2021-3738)

    Information leak via symlinks of existance of files or directories outside of the exported share     (CVE-2021-44141)

    Out-of-bounds heap read/write vulnerability in VFS module vfs_fruit allows code execution (CVE-2021-44142)

    Samba AD users with permission to write to an account can impersonate arbitrary services (CVE-2022-0336)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-017353 advisory.

    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.

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The version of Samba running on the remote host is 4.0.x prior to 4.13.17, 4.14.x prior to 4.14.12, or 4.15.x prior to 4.15.5.  It is, therefore, affected by multiple vulnerabilities:

  - Out-of-bounds heap read/write vulnerability in VFS module vfs_fruit allows code execution. (CVE-2021-44142)

  - Information leak via symlinks of existence of	files or directories outside of the exported share. (CVE-2021-44141)

  - Samba AD users with permission to write to an account can impersonate arbitrary services. (CVE-2022-0336)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	名前	製品	ファミリー	公開日	更新日	深刻度
160676	EulerOS 2.0 SP10 : samba (EulerOS-SA-2022-1652)	Nessus	Huawei Local Security Checks	2022/5/6	2023/3/21	high
157325	openSUSE 15 Security Update : samba (openSUSE-SU-2022:0283-1)	Nessus	SuSE Local Security Checks	2022/2/2	2023/11/1	high
157286	Ubuntu 20.04 LTS : Samba vulnerabilities (USN-5260-1)	Nessus	Ubuntu Local Security Checks	2022/2/1	2024/8/27	high
157908	Debian DSA-5071-1 : samba - security update	Nessus	Debian Local Security Checks	2022/2/11	2023/3/21	high
157319	FreeBSD : samba -- Multiple Vulnerabilities (8579074c-839f-11ec-a3b2-005056a311d1)	Nessus	FreeBSD Local Security Checks	2022/2/2	2023/11/6	high
212474	Amazon Linux 2022 : ctdb, ctdb-pcp-pmda, libsmbclient (ALAS2022-2022-022)	Nessus	Amazon Linux Local Security Checks	2024/12/11	2024/12/16	high
313546	Unity Linux 20.1060e / 20.1070e Security Update: samba (UTSA-2026-017353)	Nessus	Unity Linux Local Security Checks	2026/5/9	2026/5/9	high
157360	Samba 4.0.x < 4.13.17 / 4.14.x < 4.14.12 / 4.15.x < 4.15.5 Multiple Vulnerabilities	Nessus	Misc.	2022/2/3	2023/2/3	high

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