Vulnerability in Samba
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.019 (78.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.021 · newest: 0.019 · change: -0.002
Affected products
- Samba — versions all versions starting samba 4.5.0 before samba 4.9.15, samba 4.10.10, samba 4.11.2
- Fedoraproject Fedora — versions 29, 30, 31
- openSUSE Leap — versions 15.0
Weakness classification (CWE)
References
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Mitigation, Issue Tracking)
- www.samba.org/samba/security/CVE-2019-14833.html (Mitigation, Vendor Advisory)
- www.synology.com/security/advisory/Synology_SA_19_35
- lists.opensuse.org/opensuse-security-announce/2019-11/msg00015.html (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.debian.org/debian-lts-announce/2021/05/msg00023.html (mailing-list)
- lists.debian.org/debian-lts-announce/2023/09/msg00013.html (mailing-list)
Frequently asked questions
- What is CVE-2019-14833?
- CVE-2019-14833 is a medium-severity vulnerability in Samba, classified under Authentication Bypass by Primary Weakness. CVSS score: 5.4/10. Published 2019-11-06.
- How severe is CVE-2019-14833?
- Medium severity. CVSS v3 base score is 5.4 out of 10.