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medium 4.2

CVE-2019-14833 json

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…

published 7y ago modified 4mo ago also EUVD-2019-5959

cvss
4.2
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.9%
EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits
0
none known

Summary

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.

Patch / fix

  • samba samba 4.9.15, 4.10.10, 4.11.2
  • samba Debian 14, Debian 13, Debian 12 2:4.11.1+dfsg-2

debian advisories DEBIAN-CVE-2019-14833

  • samba Ubuntu 18.04 LTS 2:4.7.6+dfsg~ubuntu-0ubuntu2.13

ubuntu advisories UBUNTU-CVE-2019-14833

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • samba SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 +1 more 4.10.17+git.203.862547088ca-3.14.1
  • ldb SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 1.5.8-3.5.1
  • samba SLE Module for Package Hub 15, SLE Module for Basesystem 15, SLE High Availability Extension 15 4.7.11+git.186.d75219614c3-4.30.1
  • samba SLE Module for Python 2 15 SP1, SLE Module for Basesystem 15 SP1, SLE High Availability Extension 15 SP1 +1 more 4.9.5+git.210.ab0549acb05-3.14.1

suse advisories SUSE-SU-2020:2673-1SUSE-SU-2019:2868-1SUSE-SU-2019:2866-1

  • samba openSUSE Tumbleweed 4.14.6+git.182.2205d5224e3-1.1
  • samba openSUSE Leap 15.0 4.7.11+git.186.d75219614c3-lp150.3.18.2
  • samba openSUSE Leap 15.1 4.9.5+git.210.ab0549acb05-lp151.2.9.1

opensuse advisories openSUSE-SU-2024:11365-1openSUSE-SU-2019:2458-1openSUSE-SU-2019:2442-1

  • samba Alpine 3.10 4.10.10-r0
  • samba Alpine 3.24, Alpine 3.23, Alpine 3.22 +11 more 4.11.2-r0
  • samba Alpine 3.9, Alpine 3.8 4.8.12-r1

alpine advisories ALPINE-CVE-2019-14833

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • samba Arch Linux 4.10.10-1

arch linux advisories AVG-1057

Is CVE-2019-14833 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-14833 updated cvss 4.2

samba: AD DC check password script does not receive full password when non-ASCII characters are used

  • Red Hat Enterprise Linux 5 samba, samba3x Red Hat Enterprise Linux 6 samba, samba4, samba4-dc, samba-swat, samba4-libs, samba4-pidl, +17 more Red Hat Enterprise Linux 7 ctdb, samba, samba-dc, ctdb-tests, samba-libs, samba-pidl, +18 more Red Hat Enterprise Linux 8 ctdb, samba, libnetapi, ctdb-tests, samba-libs, samba-pidl, +24 more Red Hat Storage 3 ctdb, samba, samba-dc, ctdb-tests, samba-libs, samba-pidl, +21 more Red Hat Virtualization 4 redhat-virtualization-host-image-update
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.86% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.0 4.2 CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
NVD 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
NVD 2.0 4.9 AV:N/AC:M/Au:S/C:P/I:P/A:N

Affected products

  • Samba samba

Classification

Weakness
  • CWE-305 Authentication Bypass by Primary Weakness
  • CWE-521 Weak Password Requirements

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.