UBUNTU-CVE-2019-14870

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Source

https://ubuntu.com/security/CVE-2019-14870

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-14870.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2019-14870

Upstream

CVE-2019-14870

Downstream

USN-4217-1

USN-4217-2

Related

Published

2019-12-10T00:00:00Z

Modified

2025-10-14T16:48:45Z

Severity

5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
5.4 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

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 delegationnotallowed (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.

References

Affected packages

Ubuntu:Pro:14.04:LTS / samba

Package

Name: samba
Purl: pkg:deb/ubuntu/samba@2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4?arch=source&distro=trusty/esm

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4

Affected versions

2:3.*

2:3.6.18-1ubuntu3

2:4.*

2:4.0.10+dfsg-4ubuntu2

2:4.0.13+dfsg-1ubuntu1

2:4.1.3+dfsg-2ubuntu2

2:4.1.3+dfsg-2ubuntu3

2:4.1.3+dfsg-2ubuntu4

2:4.1.3+dfsg-2ubuntu5

2:4.1.6+dfsg-1ubuntu1

2:4.1.6+dfsg-1ubuntu2

2:4.1.6+dfsg-1ubuntu2.14.04.1

2:4.1.6+dfsg-1ubuntu2.14.04.2

2:4.1.6+dfsg-1ubuntu2.14.04.3

2:4.1.6+dfsg-1ubuntu2.14.04.4

2:4.1.6+dfsg-1ubuntu2.14.04.5

2:4.1.6+dfsg-1ubuntu2.14.04.7

2:4.1.6+dfsg-1ubuntu2.14.04.8

2:4.1.6+dfsg-1ubuntu2.14.04.9

2:4.1.6+dfsg-1ubuntu2.14.04.11

2:4.1.6+dfsg-1ubuntu2.14.04.12

2:4.1.6+dfsg-1ubuntu2.14.04.13

2:4.3.8+dfsg-0ubuntu0.14.04.2

2:4.3.9+dfsg-0ubuntu0.14.04.1

2:4.3.9+dfsg-0ubuntu0.14.04.3

2:4.3.11+dfsg-0ubuntu0.14.04.1

2:4.3.11+dfsg-0ubuntu0.14.04.2

2:4.3.11+dfsg-0ubuntu0.14.04.3

2:4.3.11+dfsg-0ubuntu0.14.04.4

2:4.3.11+dfsg-0ubuntu0.14.04.6

2:4.3.11+dfsg-0ubuntu0.14.04.7

2:4.3.11+dfsg-0ubuntu0.14.04.8

2:4.3.11+dfsg-0ubuntu0.14.04.9

2:4.3.11+dfsg-0ubuntu0.14.04.10

2:4.3.11+dfsg-0ubuntu0.14.04.11

2:4.3.11+dfsg-0ubuntu0.14.04.12

2:4.3.11+dfsg-0ubuntu0.14.04.13

2:4.3.11+dfsg-0ubuntu0.14.04.14

2:4.3.11+dfsg-0ubuntu0.14.04.16

2:4.3.11+dfsg-0ubuntu0.14.04.17

2:4.3.11+dfsg-0ubuntu0.14.04.19

2:4.3.11+dfsg-0ubuntu0.14.04.20

2:4.3.11+dfsg-0ubuntu0.14.04.20+esm1

2:4.3.11+dfsg-0ubuntu0.14.04.20+esm2

2:4.3.11+dfsg-0ubuntu0.14.04.20+esm3

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libnss-winbind",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4"
        },
        {
            "binary_name": "libpam-smbpass",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4"
        },
        {
            "binary_name": "libpam-winbind",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4"
        },
        {
            "binary_name": "libparse-pidl-perl",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4"
        },
        {
            "binary_name": "libsmbclient",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4"
        },
        {
            "binary_name": "libsmbclient-dev",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4"
        },
        {
            "binary_name": "libsmbsharemodes-dev",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4"
        },
        {
            "binary_name": "libsmbsharemodes0",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4"
        },
        {
            "binary_name": "libwbclient-dev",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4"
        },
        {
            "binary_name": "libwbclient0",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4"
        },
        {
            "binary_name": "python-samba",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4"
        },
        {
            "binary_name": "registry-tools",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4"
        },
        {
            "binary_name": "samba",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4"
        },
        {
            "binary_name": "samba-common",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4"
        },
        {
            "binary_name": "samba-common-bin",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4"
        },
        {
            "binary_name": "samba-dev",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4"
        },
        {
            "binary_name": "samba-dsdb-modules",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4"
        },
        {
            "binary_name": "samba-libs",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4"
        },
        {
            "binary_name": "samba-testsuite",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4"
        },
        {
            "binary_name": "samba-vfs-modules",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4"
        },
        {
            "binary_name": "smbclient",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4"
        },
        {
            "binary_name": "winbind",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.14.04.20+esm4"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-14870.json"

Ubuntu:16.04:LTS / samba

Package

Name: samba
Purl: pkg:deb/ubuntu/samba@2:4.3.11+dfsg-0ubuntu0.16.04.24?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2:4.3.11+dfsg-0ubuntu0.16.04.24

Affected versions

2:4.*

2:4.1.17+dfsg-4ubuntu2

2:4.1.20+dfsg-1ubuntu1

2:4.1.20+dfsg-1ubuntu2

2:4.1.20+dfsg-1ubuntu3

2:4.1.20+dfsg-1ubuntu5

2:4.3.3+dfsg-1ubuntu1

2:4.3.3+dfsg-1ubuntu2

2:4.3.3+dfsg-1ubuntu3

2:4.3.6+dfsg-1ubuntu1

2:4.3.8+dfsg-0ubuntu1

2:4.3.9+dfsg-0ubuntu0.16.04.1

2:4.3.9+dfsg-0ubuntu0.16.04.2

2:4.3.9+dfsg-0ubuntu0.16.04.3

2:4.3.11+dfsg-0ubuntu0.16.04.1

2:4.3.11+dfsg-0ubuntu0.16.04.3

2:4.3.11+dfsg-0ubuntu0.16.04.5

2:4.3.11+dfsg-0ubuntu0.16.04.6

2:4.3.11+dfsg-0ubuntu0.16.04.7

2:4.3.11+dfsg-0ubuntu0.16.04.8

2:4.3.11+dfsg-0ubuntu0.16.04.9

2:4.3.11+dfsg-0ubuntu0.16.04.10

2:4.3.11+dfsg-0ubuntu0.16.04.11

2:4.3.11+dfsg-0ubuntu0.16.04.12

2:4.3.11+dfsg-0ubuntu0.16.04.13

2:4.3.11+dfsg-0ubuntu0.16.04.15

2:4.3.11+dfsg-0ubuntu0.16.04.16

2:4.3.11+dfsg-0ubuntu0.16.04.17

2:4.3.11+dfsg-0ubuntu0.16.04.18

2:4.3.11+dfsg-0ubuntu0.16.04.19

2:4.3.11+dfsg-0ubuntu0.16.04.20

2:4.3.11+dfsg-0ubuntu0.16.04.21

2:4.3.11+dfsg-0ubuntu0.16.04.23

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "ctdb",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.24"
        },
        {
            "binary_name": "libnss-winbind",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.24"
        },
        {
            "binary_name": "libpam-winbind",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.24"
        },
        {
            "binary_name": "libparse-pidl-perl",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.24"
        },
        {
            "binary_name": "libsmbclient",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.24"
        },
        {
            "binary_name": "libsmbclient-dev",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.24"
        },
        {
            "binary_name": "libwbclient-dev",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.24"
        },
        {
            "binary_name": "libwbclient0",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.24"
        },
        {
            "binary_name": "python-samba",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.24"
        },
        {
            "binary_name": "registry-tools",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.24"
        },
        {
            "binary_name": "samba",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.24"
        },
        {
            "binary_name": "samba-common",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.24"
        },
        {
            "binary_name": "samba-common-bin",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.24"
        },
        {
            "binary_name": "samba-dev",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.24"
        },
        {
            "binary_name": "samba-dsdb-modules",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.24"
        },
        {
            "binary_name": "samba-libs",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.24"
        },
        {
            "binary_name": "samba-testsuite",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.24"
        },
        {
            "binary_name": "samba-vfs-modules",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.24"
        },
        {
            "binary_name": "smbclient",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.24"
        },
        {
            "binary_name": "winbind",
            "binary_version": "2:4.3.11+dfsg-0ubuntu0.16.04.24"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-14870.json"

Ubuntu:18.04:LTS / samba

Package

Name: samba
Purl: pkg:deb/ubuntu/samba@2:4.7.6+dfsg~ubuntu-0ubuntu2.14?arch=source&distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2:4.7.6+dfsg~ubuntu-0ubuntu2.14

Affected versions

2:4.*

2:4.6.7+dfsg-1ubuntu3

2:4.7.1+dfsg-1ubuntu1

2:4.7.3+dfsg-1ubuntu1

2:4.7.4+dfsg-1ubuntu1

2:4.7.6+dfsg~ubuntu-0ubuntu1

2:4.7.6+dfsg~ubuntu-0ubuntu2

2:4.7.6+dfsg~ubuntu-0ubuntu2.2

2:4.7.6+dfsg~ubuntu-0ubuntu2.4

2:4.7.6+dfsg~ubuntu-0ubuntu2.5

2:4.7.6+dfsg~ubuntu-0ubuntu2.6

2:4.7.6+dfsg~ubuntu-0ubuntu2.7

2:4.7.6+dfsg~ubuntu-0ubuntu2.9

2:4.7.6+dfsg~ubuntu-0ubuntu2.10

2:4.7.6+dfsg~ubuntu-0ubuntu2.11

2:4.7.6+dfsg~ubuntu-0ubuntu2.13

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "ctdb",
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14"
        },
        {
            "binary_name": "libnss-winbind",
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14"
        },
        {
            "binary_name": "libpam-winbind",
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14"
        },
        {
            "binary_name": "libparse-pidl-perl",
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14"
        },
        {
            "binary_name": "libsmbclient",
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14"
        },
        {
            "binary_name": "libsmbclient-dev",
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14"
        },
        {
            "binary_name": "libwbclient-dev",
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14"
        },
        {
            "binary_name": "libwbclient0",
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14"
        },
        {
            "binary_name": "python-samba",
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14"
        },
        {
            "binary_name": "registry-tools",
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14"
        },
        {
            "binary_name": "samba",
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14"
        },
        {
            "binary_name": "samba-common",
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14"
        },
        {
            "binary_name": "samba-common-bin",
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14"
        },
        {
            "binary_name": "samba-dev",
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14"
        },
        {
            "binary_name": "samba-dsdb-modules",
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14"
        },
        {
            "binary_name": "samba-libs",
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14"
        },
        {
            "binary_name": "samba-testsuite",
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14"
        },
        {
            "binary_name": "samba-vfs-modules",
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14"
        },
        {
            "binary_name": "smbclient",
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14"
        },
        {
            "binary_name": "winbind",
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.14"
        }
    ],
    "availability": "No subscription required"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-14870.json"