What’s Vulnerable › Vulnerabilities
CVE-2019-14833
- Severity: medium (CVSS 5.4 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.9% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2019-11-06 · updated 2026-06-17
- Weakness: CWE-305
Description
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.
Affected products
- Fedoraproject Fedora: 29, 30, 31
- openSUSE Leap: 15.0
- Samba: from 4.5.0 before 4.9.15; from 4.10.0 before 4.10.10; from 4.11.0 before 4.11.2 — fixed in 4.10.10, 4.11.2, 4.9.15
How to fix
Upgrade to a fixed version: Samba 4.10.10, 4.11.2, 4.9.15. Check the vendor advisory for mitigations.
References
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00015.html
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14833
- https://lists.debian.org/debian-lts-announce/2021/05/msg00023.html
- https://lists.debian.org/debian-lts-announce/2023/09/msg00013.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OKPYHDFI7HRELVXBE5J4MTGSI35AKFBI/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UMIYCYXCPRTVCVZ3TP6ZGPJ6RZS3IX4G/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XQ3IUACPZJXSC4OM6P2V4IC4QMZQZWPD/
- https://www.samba.org/samba/security/CVE-2019-14833.html
- https://www.synology.com/security/advisory/Synology_SA_19_35
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00015.html
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14833
- https://lists.debian.org/debian-lts-announce/2021/05/msg00023.html
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