CVE-2019-3870
CVE-2019-3870
This page contains facts from public vulnerability sources. Check the original advisory before updating.
A vulnerability was found in Samba from version (including) 4.9 to versions before 4.9.6 and 4.10.2. During the creation of a new Samba AD DC, files are created in a private subdirectory of the install location. This directory is typically mode 0700, that is owner (root) only access. However in some upgraded installations it will have other permissions, such as 0755, because this was the default before Samba 4.8. Within this directory, files are created with mode 0666, which is world-writable, including a sample krb5.conf, and the list of DNS names and servicePrincipalName values to update.
CVSS 6.1 · Medium · EPSS 0.6% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
samba
- Versions
- 4.9.6: Affected
- 4.10.2: Affected
No fix published
samba Debian:12
- Affected ranges
- ECOSYSTEM: < 2:4.9.5+dfsg-3
Update to 2:4.9.5+dfsg-3
samba Debian:13
- Affected ranges
- ECOSYSTEM: < 2:4.9.5+dfsg-3
Update to 2:4.9.5+dfsg-3
samba Debian:14
- Affected ranges
- ECOSYSTEM: < 2:4.9.5+dfsg-3
Update to 2:4.9.5+dfsg-3
Original sources
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JTJVFA3RZ6G2IZDTVKLHRMX6QBYA4GPA/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6354GALK73CZWQKFUG7AWB6EIEGFMF62/
- https://www.samba.org/samba/security/CVE-2019-3870.html
- https://bugzilla.samba.org/show_bug.cgi?id=13834
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3870
- https://www.synology.com/security/advisory/Synology_SA_19_15
- https://support.f5.com/csp/article/K20804356
- https://nvd.nist.gov/vuln/detail/CVE-2019-3870