CVE-2019-14870

Source
https://cve.org/CVERecord?id=CVE-2019-14870
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-14870.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2019-14870
Downstream
Related
Published
2019-12-10T23:15:10.457Z
Modified
2026-04-16T00:07:32.407404638Z
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
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.

Database specific
{
    "unresolved_ranges": [
        {
            "cpe": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "14.04"
                }
            ],
            "source": "CPE_FIELD"
        },
        {
            "cpe": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "16.04"
                }
            ],
            "source": "CPE_FIELD"
        },
        {
            "cpe": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "18.04"
                }
            ],
            "source": "CPE_FIELD"
        },
        {
            "cpe": "cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "19.04"
                }
            ],
            "source": "CPE_FIELD"
        },
        {
            "cpe": "cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "19.10"
                }
            ],
            "source": "CPE_FIELD"
        },
        {
            "cpe": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "10.0"
                }
            ],
            "source": "CPE_FIELD"
        },
        {
            "cpe": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "9.0"
                }
            ],
            "source": "CPE_FIELD"
        },
        {
            "cpe": "cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "30"
                }
            ],
            "source": "CPE_FIELD"
        },
        {
            "cpe": "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "31"
                }
            ],
            "source": "CPE_FIELD"
        },
        {
            "cpe": "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "15.1"
                }
            ],
            "source": "CPE_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/samba-team/samba

Affected ranges

Type
GIT
Repo
https://github.com/samba-team/samba
Events
Database specific
{
    "cpe": "cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "4.0.0"
        },
        {
            "fixed": "4.9.17"
        },
        {
            "introduced": "4.10.0"
        },
        {
            "fixed": "4.10.11"
        },
        {
            "introduced": "4.11.0"
        },
        {
            "fixed": "4.11.3"
        }
    ],
    "source": "CPE_FIELD"
}

Affected versions

ldb-1.*
ldb-1.5.5
ldb-1.5.6
samba-4.*
samba-4.10.0
samba-4.10.1
samba-4.10.10
samba-4.10.6
samba-4.10.7
samba-4.10.9
samba-4.11.0
samba-4.11.1
samba-4.11.2

Database specific

source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-14870.json"