UBUNTU-CVE-2019-14833

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Source
https://ubuntu.com/security/CVE-2019-14833
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-14833.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2019-14833
Upstream
Downstream
Related
Published
2019-10-29T00:00:00Z
Modified
2025-09-08T16:45:30Z
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
  • 4.2 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:18.04:LTS / samba

Package

Name
samba
Purl
pkg:deb/ubuntu/samba@2:4.7.6+dfsg~ubuntu-0ubuntu2.13?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-0ubuntu2.13

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

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.13",
            "binary_name": "ctdb"
        },
        {
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.13",
            "binary_name": "libnss-winbind"
        },
        {
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.13",
            "binary_name": "libpam-winbind"
        },
        {
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.13",
            "binary_name": "libparse-pidl-perl"
        },
        {
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.13",
            "binary_name": "libsmbclient"
        },
        {
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.13",
            "binary_name": "libsmbclient-dev"
        },
        {
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.13",
            "binary_name": "libwbclient-dev"
        },
        {
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.13",
            "binary_name": "libwbclient0"
        },
        {
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.13",
            "binary_name": "python-samba"
        },
        {
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.13",
            "binary_name": "registry-tools"
        },
        {
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.13",
            "binary_name": "samba"
        },
        {
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.13",
            "binary_name": "samba-common"
        },
        {
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.13",
            "binary_name": "samba-common-bin"
        },
        {
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.13",
            "binary_name": "samba-dev"
        },
        {
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.13",
            "binary_name": "samba-dsdb-modules"
        },
        {
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.13",
            "binary_name": "samba-libs"
        },
        {
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.13",
            "binary_name": "samba-testsuite"
        },
        {
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.13",
            "binary_name": "samba-vfs-modules"
        },
        {
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.13",
            "binary_name": "smbclient"
        },
        {
            "binary_version": "2:4.7.6+dfsg~ubuntu-0ubuntu2.13",
            "binary_name": "winbind"
        }
    ]
}