It was found that while having a support for TLS/SSL for some protocols like ldap and http, certificates are not validated at all. When having a "tls cafile" option, configured certificate is not used to validate the server certificate. Currently all Samba versions >= 4.0.0 are affected. Upstream bug: https://bugzilla.samba.org/show_bug.cgi?id=11752
Acknowledgements: Name: the Samba project Upstream: Stefan Metzmacher (SerNet)
External Reference: https://access.redhat.com/articles/2243351
Public via: https://www.samba.org/samba/security/CVE-2016-2113.html
Created samba tracking bugs for this issue: Affects: fedora-all [bug 1326453]
This issue has been addressed in the following products: Red Hat Enterprise Linux 6.6 Extended Update Support Red Hat Enterprise Linux 6.5 Advanced Update Support Red Hat Enterprise Linux 6.4 Advanced Update Support Red Hat Enterprise Linux 6.2 Advanced Update Support Via RHSA-2016:0620 https://rhn.redhat.com/errata/RHSA-2016-0620.html
This issue has been addressed in the following products: Red Hat Gluster Storage 3.1 for RHEL 7 Red Hat Gluster Storage 3.1 for RHEL 6 Via RHSA-2016:0614 https://rhn.redhat.com/errata/RHSA-2016-0614.html
This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Red Hat Enterprise Linux 6 Via RHSA-2016:0612 https://rhn.redhat.com/errata/RHSA-2016-0612.html
This issue has been addressed in the following products: Red Hat Enterprise Linux 7.1 Extended Update Support Via RHSA-2016:0618 https://rhn.redhat.com/errata/RHSA-2016-0618.html
samba-4.3.8-0.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
samba-4.2.11-0.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.
samba-4.4.2-1.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.