RHSA-2019:1966 - Security Advisory

Topic

Updated samba packages that fix one security issue and provide several bug fixes and enhancements are now available for Red Hat Gluster Storage 3.4 for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

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.

Security Fix(es):

• samba: save registry file outside share as unprivileged user (CVE-2019-3880)

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

Bug Fix(es):

• The samba and CTDB packages have been upgraded to upstream version 4.9.8, which provide a number of bug fixes and enhancements over the previous release, including numerous changes to the CTDB configuration. See the Solution section for a link to the Knowledge Base article to aid in migration. (BZ#1703030)

Users of Samba with Red Hat Gluster Storage are advised to upgrade to these updated packages.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

After installing this update, the smb service will be restarted automatically.

For details on migrating Samba/CTDB configuration files, refer to:

https://access.redhat.com/solutions/4311261

Affected Products

• Red Hat Gluster Storage Server for On-premise 3 for RHEL 7 x86_64

Fixes

• BZ - 1691518 - CVE-2019-3880 samba: save registry file outside share as unprivileged user
• BZ - 1703030 - [RHEL7] [Rebase] Require higher version of rhgs samba for RHEL-7.7 compatibility
• BZ - 1708290 - [RHEL7] [Rebase] Samba rebase requires update to some dependent libraries
• BZ - 1720475 - [Samba] 3.4.z Samba upgrade fails while update on live gluster for libgfapi.so.0(GFAPI_6.0)(64bit)

CVEs

• CVE-2019-3880

References

• https://access.redhat.com/security/updates/classification/#moderate