(RHSA-2018:3056) Moderate: samba security, bug fix, and enhancement update

Samba is an open-source implementation of the Server Message Block (SMB) protocol and the related Common Internet File System (CIFS) protocol, which allow PC-compatible machines to share files, printers, and various information.

The following packages have been upgraded to a later upstream version: samba (4.8.3). (BZ#1558560)

Security Fix(es):

• samba: Weak authentication protocol regression (CVE-2018-1139)

• samba: Insufficient input validation in libsmbclient (CVE-2018-10858)

• samba: NULL pointer dereference in printer server process (CVE-2018-1050)

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Red Hat would like to thank the Samba project for reporting CVE-2018-1050. The CVE-2018-1139 issue was discovered by Vivek Das (Red Hat).

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.6 Release Notes linked from the References section.