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

  - Heimdal before 7.4 allows remote attackers to     impersonate services with Orpheus' Lyre attacks because     it obtains service-principal names in a way that     violates the Kerberos 5 protocol specification. In
    _krb5_extract_ticket() the KDC-REP service name must be     obtained from the encrypted version stored in     'enc_part' instead of the unencrypted version stored in     'ticket'. Use of the unencrypted version provides an     opportunity for successful server impersonation and     other attacks. NOTE: this CVE is only for Heimdal and     other products that embed Heimdal code it does not     apply to other instances in which this part of the     Kerberos 5 protocol specification is     violated.(CVE-2017-11103)

  - 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.(CVE-2020-10760)

  - 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.(CVE-2019-14902)

  - 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).(CVE-2019-14907)

  - 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.(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 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.(CVE-2019-14870)

  - 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.(CVE-2019-10218)

  - 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.(CVE-2019-14833)

  - 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.(CVE-2019-14847)

  - 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.(CVE-2020-14303)

  - 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.(CVE-2018-16860)

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.

According to the versions of the samba packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

  - 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.(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 (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.(CVE-2019-14861)

  - 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).(CVE-2019-14907)

  - 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.(CVE-2019-14902)

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.

This update for samba fixes the following issues :

CVE-2019-14861: Fixed a DNSServer RPC server crash, that allowed an authenticated user to crash the DCE/RPC DNS management server by creating records with matching the zone name (bsc#1158108).

CVE-2019-14870: Fixed a DelegationNotAllowed not being enforced (bsc#1158109).

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

Update to Samba 4.10.11, Security fixes for CVE-2019-14861 and CVE-2019-14870

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

The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3206 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-3206-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                       Guilhem Moulin     November 26, 2022                             https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : heimdal     Version        : 7.5.0+dfsg-3+deb10u1     CVE ID         : CVE-2019-14870 CVE-2021-3671 CVE-2021-44758 CVE-2022-3437                      CVE-2022-41916 CVE-2022-42898 CVE-2022-44640     Debian Bug     : 946786 996586 1024187

    Multiple security vulnerabilities were discovered in heimdal, an     implementation of the Kerberos 5 authentication protocol, which may     result in denial of service, information disclosure, or remote code     execution.

    CVE-2019-14870

        Isaac Boukris reported that the Heimdal KDC before 7.7.1 does not         apply delegation_not_allowed (aka not-delegated) user attributes for         S4U2Self.  Instead the forwardable flag is set even if the         impersonated client has the not-delegated flag set.

    CVE-2021-3671

        Joseph Sutton discovered that the Heimdal KDC before 7.7.1 does not         check for missing missing sname in TGS-REQ (Ticket Granting Server -         Request) before before dereferencing.  An authenticated user could         use this flaw to crash the KDC.

    CVE-2021-44758

        It was discovered that Heimdal is prone to a NULL dereference in         acceptors when the initial SPNEGO token has no acceptable         mechanisms, which may result in denial of service for a server         application that uses the Simple and Protected GSSAPI Negotiation         Mechanism (SPNEGO).

    CVE-2022-3437

        Evgeny Legerov reported that the DES and Triple-DES decryption         routines in the Heimdal GSSAPI library before 7.7.1 were prone to         buffer overflow on malloc() allocated memory when presented with a         maliciously small packet.  In addition, the Triple-DES and RC4         (arcfour) decryption routine were prone to non-constant time leaks,         which could potentially yield to a leak of secret key material when         using these ciphers.

    CVE-2022-41916

        It was discovered that Heimdal's PKI certificate validation library         before 7.7.1 can under some circumstances perform an out-of-bounds         memory access when normalizing Unicode, which may result in denial         of service.

    CVE-2022-42898

        Greg Hudson discovered an integer multiplication overflow in the         Privilege Attribute Certificate (PAC) parsing routine, which may         result in denial of service for Heimdal KDCs and possibly Heimdal         servers (e.g., via GSS-API) on 32-bit systems.

    CVE-2022-44640

        Douglas Bagnall and the Heimdal maintainers independently discovered         that Heimdal's ASN.1 compiler before 7.7.1 generates code that         allows specially crafted DER encodings of CHOICEs to invoke the         wrong free() function on the decoded structure upon decode error,         which may result in remote code execution in the Heimdal KDC and         possibly the Kerberos client, the X.509 library, and other         components as well.

    For Debian 10 buster, these problems have been fixed in version     7.5.0+dfsg-3+deb10u1.

    We recommend that you upgrade your heimdal packages.

    For the detailed security status of heimdal please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/heimdal

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS     Attachment:
    signature.asc     Description: PGP signature

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

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

According to the versions of the samba packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

  - Samba from version 4.9.0 and before version 4.9.3 that     have AD DC configurations watching for bad passwords     (to restrict brute forcing of passwords) in a window of     more than 3 minutes may not watch for bad passwords at     all. The primary risk from this issue is with regards     to domains that have been upgraded from Samba 4.8 and     earlier. In these cases the manual testing done to     confirm an organisation's password policies apply as     expected may not have been re-done after the     upgrade.(CVE-2018-16857)

  - Samba from version 4.9.0 and before version 4.9.3 is     vulnerable to a NULL pointer de-reference. During the     processing of an DNS zone in the DNS management DCE/RPC     server, the internal DNS server or the Samba DLZ plugin     for BIND9, if the DSPROPERTY_ZONE_MASTER_SERVERS     property or DSPROPERTY_ZONE_SCAVENGING_SERVERS property     is set, the server will follow a NULL pointer and     terminate. There is no further vulnerability associated     with this issue, merely a denial of     service.(CVE-2018-16852)

  - 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.(CVE-2019-10197)

  - 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.(CVE-2019-14847)

  - 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.(CVE-2019-14833)

  - 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.(CVE-2019-10218)

  - A flaw was found in the way an LDAP search expression     could crash the shared LDAP server process of a samba     AD DC in samba before version 4.10. An authenticated     user, having read permissions on the LDAP server, could     use this flaw to cause denial of     service.(CVE-2019-3824)

  - 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.(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 (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.(CVE-2019-14861)

  - 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.(CVE-2018-16860)

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 version of Samba running on the remote host is 4.x prior to 4.9.17, 4.10.x prior to 4.10.11, or 4.11.x prior to 4.11.3.  It is, therefore, affected by multiple vulnerabilities:

  - A denial of service (DoS) vulnerability exists in the ldb_qsort() and dns_name_compare() routines due to     how the routines handle case sensitivity of DNS records. An authenticated, remote attacker can exploit     this issue, by registering a DNS record matching the name of the DNS zone, to cause the process to stop     responding. (CVE-2019-14861)

  - An issue exists 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. (CVE-2019-14870)

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

The Samba Team reports :

CVE-2019-14861 :

An authenticated user can crash the DCE/RPC DNS management server by creating records with matching the zone name.

CVE-2019-14870 :

The DelegationNotAllowed Kerberos feature restriction was not being applied when processing protocol transition requests (S4U2Self), in the AD DC KDC.

This update for samba fixes the following issues :

  - CVE-2019-14861: Fixed a DNSServer RPC server crash, that     allowed an authenticated user to crash the DCE/RPC DNS     management server by creating records with matching the     zone name (bsc#1158108).

  - CVE-2019-14870: Fixed a DelegationNotAllowed not being     enforced (bsc#1158109).

This update was imported from the SUSE:SLE-15-SP1:Update update project.

The remote host is affected by the vulnerability described in GLSA-202310-06 (Heimdal: Multiple Vulnerabilities)

  - 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. (CVE-2019-14870)

  - Heimdal before 7.7.1 allows attackers to cause a NULL pointer dereference in a SPNEGO acceptor via a     preferred_mech_type of GSS_C_NO_OID and a nonzero initial_response value to send_accept. (CVE-2021-44758)

  - A heap-based buffer overflow vulnerability was found in Samba within the GSSAPI unwrap_des() and     unwrap_des3() routines of Heimdal. The DES and Triple-DES decryption routines in the Heimdal GSSAPI     library allow a length-limited write buffer overflow on malloc() allocated memory when presented with a     maliciously small packet. This flaw allows a remote user to send specially crafted malicious data to the     application, possibly resulting in a denial of service (DoS) attack. (CVE-2022-3437)

  - A vulnerability classified as critical was found in SourceCodester eLearning System 1.0. This     vulnerability affects unknown code of the file /admin/students/manage.php. The manipulation of the     argument id leads to sql injection. The attack can be initiated remotely. The exploit has been disclosed     to the public and may be used. VDB-212014 is the identifier assigned to this vulnerability.
    (CVE-2022-3671)

  - Heimdal is an implementation of ASN.1/DER, PKIX, and Kerberos. Versions prior to 7.7.1 are vulnerable to a     denial of service vulnerability in Heimdal's PKI certificate validation library, affecting the KDC (via     PKINIT) and kinit (via PKINIT), as well as any third-party applications using Heimdal's libhx509. Users     should upgrade to Heimdal 7.7.1 or 7.8. There are no known workarounds for this issue. (CVE-2022-41916)

  - PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 has integer overflows that     may lead to remote code execution (in KDC, kadmind, or a GSS or Kerberos application server) on 32-bit     platforms (which have a resultant heap-based buffer overflow), and cause a denial of service on other     platforms. This occurs in krb5_pac_parse in lib/krb5/krb/pac.c. Heimdal before 7.7.1 has a similar bug.
    (CVE-2022-42898)

  - Heimdal before 7.7.1 allows remote attackers to execute arbitrary code because of an invalid free in the     ASN.1 codec used by the Key Distribution Center (KDC). (CVE-2022-44640)

  - The fix for CVE-2022-3437 included changing memcmp to be constant time and a workaround for a compiler bug     by adding != 0 comparisons to the result of memcmp. When these patches were backported to the     heimdal-7.7.1 and heimdal-7.8.0 branches (and possibly other branches) a logic inversion sneaked in     causing the validation of message integrity codes in gssapi/arcfour to be inverted. (CVE-2022-45142)

  -  Please review the referenced CVE identifiers for details.  (CVE-2022-44758)

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

The remote host is affected by the vulnerability described in GLSA-202003-52 (Samba: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in Samba. Please review       the CVE identifiers referenced below for details.
  Impact :

    A remote attacker could possibly execute arbitrary code, cause a Denial       of Service condition, conduct a man-in-the-middle attack, or obtain       sensitive information.
  Workaround :

    There is no known workaround at this time.

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

  - 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.(CVE-2018-16860)

  - 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.(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 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.(CVE-2019-14870)

  - 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.(CVE-2019-10218)

  - A flaw was found in the way an LDAP search expression     could crash the shared LDAP server process of a samba     AD DC. An authenticated user, having read permissions     on the LDAP server, could use this flaw to cause denial     of service.(CVE-2019-3824)

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.

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

  - 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.(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 (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.(CVE-2019-14861)

  - 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).(CVE-2019-14907)

  - 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.(CVE-2019-14902)

  - 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.(CVE-2018-16860)

  - 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.(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.(CVE-2020-10700)

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 Ubuntu 16.04 LTS / 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4217-1 advisory.

    Andreas Oster discovered that the Samba DNS management server incorrectly handled certain records. An     authenticated attacker could possibly use this issue to crash Samba, resulting in a denial of service.
    (CVE-2019-14861)

    Isaac Boukris discovered that Samba did not enforce the Kerberos DelegationNotAllowed feature restriction,     contrary to expectations. (CVE-2019-14870)

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 SUSE Linux SUSE15 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2023:0020-1 advisory.

  - 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. (CVE-2019-14870)

  - 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.
    (CVE-2021-3671)

  - Heimdal before 7.7.1 allows attackers to cause a NULL pointer dereference in a SPNEGO acceptor via a     preferred_mech_type of GSS_C_NO_OID and a nonzero initial_response value to send_accept. (CVE-2021-44758)

  - A heap-based buffer overflow vulnerability was found in Samba within the GSSAPI unwrap_des() and     unwrap_des3() routines of Heimdal. The DES and Triple-DES decryption routines in the Heimdal GSSAPI     library allow a length-limited write buffer overflow on malloc() allocated memory when presented with a     maliciously small packet. This flaw allows a remote user to send specially crafted malicious data to the     application, possibly resulting in a denial of service (DoS) attack. (CVE-2022-3437)

  - Heimdal is an implementation of ASN.1/DER, PKIX, and Kerberos. Versions prior to 7.7.1 are vulnerable to a     denial of service vulnerability in Heimdal's PKI certificate validation library, affecting the KDC (via     PKINIT) and kinit (via PKINIT), as well as any third-party applications using Heimdal's libhx509. Users     should upgrade to Heimdal 7.7.1 or 7.8. There are no known workarounds for this issue. (CVE-2022-41916)

  - PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 has integer overflows that     may lead to remote code execution (in KDC, kadmind, or a GSS or Kerberos application server) on 32-bit     platforms (which have a resultant heap-based buffer overflow), and cause a denial of service on other     platforms. This occurs in krb5_pac_parse in lib/krb5/krb/pac.c. Heimdal before 7.7.1 has a similar bug.
    (CVE-2022-42898)

  - Heimdal before 7.7.1 allows remote attackers to execute arbitrary code because of an invalid free in the     ASN.1 codec used by the Key Distribution Center (KDC). (CVE-2022-44640)

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

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
140877	EulerOS 2.0 SP3 : samba (EulerOS-SA-2020-2110)	Nessus	Huawei Local Security Checks	2020/9/28	2024/2/19	high
136229	EulerOS Virtualization for ARM 64 3.0.2.0 : samba (EulerOS-SA-2020-1526)	Nessus	Huawei Local Security Checks	2020/5/1	2024/3/13	medium
132238	SUSE SLED15 / SLES15 Security Update : samba (SUSE-SU-2019:3318-1)	Nessus	SuSE Local Security Checks	2019/12/18	2021/1/13	medium
132638	Fedora 30 : 2:samba (2019-11dddb785b)	Nessus	Fedora Local Security Checks	2020/1/6	2024/4/1	medium
168205	Debian dla-3206 : heimdal-clients - security update	Nessus	Debian Local Security Checks	2022/11/27	2025/1/22	critical
132794	EulerOS Virtualization for ARM 64 3.0.5.0 : samba (EulerOS-SA-2020-1040)	Nessus	Huawei Local Security Checks	2020/1/13	2024/4/1	critical
132023	Samba 4.x < 4.9.17 / 4.10.x < 4.10.11 / 4.11.x < 4.11.3 Multiple Vulnerabilities	Nessus	Misc.	2019/12/13	2020/1/23	medium
132064	FreeBSD : samba -- multiple vulnerabilities (1edae47e-1cdd-11ea-8c2a-08002743b791)	Nessus	FreeBSD Local Security Checks	2019/12/16	2019/12/20	medium
132239	SUSE SLED15 / SLES15 Security Update : samba (SUSE-SU-2019:3319-1)	Nessus	SuSE Local Security Checks	2019/12/18	2021/1/13	medium
132386	openSUSE Security Update : samba (openSUSE-2019-2700)	Nessus	SuSE Local Security Checks	2019/12/23	2024/4/2	medium
182758	GLSA-202310-06 : Heimdal: Multiple Vulnerabilities	Nessus	Gentoo Local Security Checks	2023/10/8	2023/12/22	critical
134927	GLSA-202003-52 : Samba: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	2020/3/26	2024/3/20	critical
132625	EulerOS 2.0 SP8 : samba (EulerOS-SA-2020-1032)	Nessus	Huawei Local Security Checks	2020/1/2	2025/2/21	high
137965	EulerOS Virtualization 3.0.6.0 : samba (EulerOS-SA-2020-1746)	Nessus	Huawei Local Security Checks	2020/7/1	2025/2/21	high
132013	Ubuntu 16.04 LTS / 18.04 LTS : Samba vulnerabilities (USN-4217-1)	Nessus	Ubuntu Local Security Checks	2019/12/12	2024/8/27	medium
170098	openSUSE 15 Security Update : libheimdal (openSUSE-SU-2023:0020-1)	Nessus	SuSE Local Security Checks	2023/1/17	2023/9/7	critical

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