Low: samba security and bug fix update

Related Vulnerabilities: CVE-2018-1050   CVE-2017-2619   CVE-2018-1050   CVE-2018-1050  

Synopsis

Low: samba security and bug fix update

Type/Severity

Security Advisory: Low

Topic

An update for samba is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Low. 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: Null pointer indirection 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 this issue.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 6.10 Release Notes and Red Hat Enterprise Linux 6.10 Technical Notes linked from the References section.

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.

Affected Products

  • Red Hat Enterprise Linux Server 6 x86_64
  • Red Hat Enterprise Linux Server 6 i386
  • Red Hat Enterprise Linux Workstation 6 x86_64
  • Red Hat Enterprise Linux Workstation 6 i386
  • Red Hat Enterprise Linux Desktop 6 x86_64
  • Red Hat Enterprise Linux Desktop 6 i386
  • Red Hat Enterprise Linux for IBM z Systems 6 s390x
  • Red Hat Enterprise Linux for Power, big endian 6 ppc64
  • Red Hat Enterprise Linux for Scientific Computing 6 x86_64

Fixes

  • BZ - 1413484 - Unable to connect windows server 2012 servers to samba-3.6.23-36 with out disabling SMB signing
  • BZ - 1431000 - Winbind core dumps when attempting to login as a disabled user in AD
  • BZ - 1467395 - Winbind does not close sockets and eventually hits clients limit
  • BZ - 1513877 - Regression: winbind leaks memory after upgrade
  • BZ - 1519884 - Winbind Core Dumps
  • BZ - 1536053 - CVE-2017-2619 regression with non-wide symlinks to directories
  • BZ - 1538771 - CVE-2018-1050 samba: Null pointer indirection in printer server process

CVEs

References