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Red Hat: RHSA-2018:1860 Low: Samba Security Issue Details

red hat
Calendar Grey June 19, 2018
Scroller Redhat
A Samba advisory for Red Hat Enterprise Linux 6 has been released to address a minor security concern.
An update for samba is now available for Red Hat Enterprise Linux 6

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.

Summary

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.

Topics%20covered

Topics Covered

security advisory Red Hat bug fix samba security fix network protocol low severity

References

https://access.redhat.com/security/cve/CVE-2018-1050 https://access.redhat.com/security/updates/classification#low https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/6.10_release_notes/index.html https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/6.10_technical_notes/index.html

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source: samba-3.6.23-51.el6.src.rpm
i386: libsmbclient-3.6.23-51.el6.i686.rpm samba-client-3.6.23-51.el6.i686.rpm samba-common-3.6.23-51.el6.i686.rpm samba-debuginfo-3.6.23-51.el6.i686.rpm samba-winbind-3.6.23-51.el6.i686.rpm samba-winbind-clients-3.6.23-51.el6.i686.rpm
x86_64: libsmbclient-3.6.23-51.el6.i686.rpm libsmbclient-3.6.23-51.el6.x86_64.rpm samba-client-3.6.23-51.el6.x86_64.rpm samba-common-3.6.23-51.el6.i686.rpm samba-common-3.6.23-51.el6.x86_64.rpm samba-debuginfo-3.6.23-51.el6.i686.rpm samba-debuginfo-3.6.23-51.el6.x86_64.rpm samba-winbind-3.6.23-51.el6.x86_64.rpm samba-winbind-clients-3.6.23-51.el6.i686.rpm samba-winbind-clients-3.6.23-51.el6.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
i386: libsmbclient-devel-3.6.23-51.el6.i686.rpm samba-3.6.23-51.el6.i686.rpm samba-debuginfo-3.6.23-51.el6.i686.rpm samba-doc-3.6.23-51.el6.i686.rpm samba-domainjoin-gui-3.6.23-51.el6.i686.rpm samba-swat-3.6.23-51.el6.i686.rpm samba-winbind-devel-3.6.23-51.el6.i686.rpm samba-winbind-krb5-locator-3.6.23-51.el6.i686.rpm
x86_64: libsmbclient-3.6.23-51.el6.i686.rpm libsmbclient-3.6.23-51.el6.x86_64.rpm libsmbclient-devel-3.6.23-51.el6.i686.rpm libsmbclient-devel-3.6.23-51.el6.x86_64.rpm samba-3.6.23-51.el6.x86_64.rpm

Read the Full Advisory


Severity
low
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2018:1860-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:1860
Issue date: 2018-06-19

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 impactof Low. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat bug fix samba security fix network protocol low severity

Relevant Releases Architectures

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64

Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64

Red Hat Enterprise Linux HPC Node (v. 6) - x86_64

Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

Bugs Fixed

1413484 - Unable to connect windows server 2012 servers to samba-3.6.23-36 with out disabling SMB signing

1431000 - Winbind core dumps when attempting to login as a disabled user in AD

1467395 - Winbind does not close sockets and eventually hits clients limit

1513877 - Regression: winbind leaks memory after upgrade

1519884 - Winbind Core Dumps

1536053 - CVE-2017-2619 regression with non-wide symlinks to directories

1538771 - CVE-2018-1050 samba: Null pointer indirection in printer server process

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