CVE-2019-14833 Security feature bypass in samba

What is CVE-2019-14833?

CVE-2019-14833 is a medium-severity vulnerability in Fedoraproject Fedora, published on 6 Nov 2019. Any signed-in user can exploit it over the network, with no action from the victim.

Official 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.

Weakness: CWE-521, CWE-305

Which versions are affected by CVE-2019-14833?

It affects 3 products.

Products include Fedoraproject Fedora, Opensuse Leap, Samba Samba.

How do I fix CVE-2019-14833?

Upgrade to a fixed version.

Is CVE-2019-14833 being exploited?

There is no known exploitation of CVE-2019-14833 in the wild and no public exploit code.

Other vulnerabilities in Fedoraproject Fedora

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• CVE-2019-5544 VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Exploited Critical 9.8
• CVE-2024-4947 Google Chromium V8 Type Confusion Exploited Critical 9.6
• CVE-2024-4671 Google Chromium Visuals Use-After-Free Exploited Critical 9.6

All Fedoraproject Fedora vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as ALPINE-CVE-2019-14833, DEBIAN-CVE-2019-14833, ECHO-c81b-e001-61c5, GHSA-gg33-rw42-3hw7, UBUNTU-CVE-2019-14833.