CVE-2019-14833

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.

• CWE-305
• CWE-521

• http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00015.htmlThird Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14833Issue Tracking, Mitigation, Patch, Third Party Advisory
• 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.htmlMitigation, Vendor Advisory
• https://www.synology.com/security/advisory/Synology_SA_19_35
• http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00015.htmlThird Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14833Issue Tracking, Mitigation, Patch, Third Party Advisory
• 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.htmlMitigation, Vendor Advisory
• https://www.synology.com/security/advisory/Synology_SA_19_35

Published

Nov 6, 2019

Last Modified

Jun 17, 2026

Status

Modified

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