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Sicherheit: Denial of Service in samba
Aktuelle Meldungen Distributionen
Name: Denial of Service in samba
ID: RHSA-2018:1860-01
Distribution: Red Hat
Plattformen: Red Hat Enterprise Linux
Datum: Di, 19. Juni 2018, 09:30
Referenzen: https://access.redhat.com/security/cve/CVE-2018-1050
Applikationen: Samba

Originalnachricht

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=====================================================================
Red Hat Security Advisory

Synopsis: Low: samba security and bug fix update
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
CVE Names: CVE-2018-1050
=====================================================================

1. Summary:

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.

2. 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

3. 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.

4. 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.

5. Bugs fixed (https://bugzilla.redhat.com/):

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

6. 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
samba-debuginfo-3.6.23-51.el6.i686.rpm
samba-debuginfo-3.6.23-51.el6.x86_64.rpm
samba-doc-3.6.23-51.el6.x86_64.rpm
samba-domainjoin-gui-3.6.23-51.el6.x86_64.rpm
samba-glusterfs-3.6.23-51.el6.x86_64.rpm
samba-swat-3.6.23-51.el6.x86_64.rpm
samba-winbind-devel-3.6.23-51.el6.i686.rpm
samba-winbind-devel-3.6.23-51.el6.x86_64.rpm
samba-winbind-krb5-locator-3.6.23-51.el6.x86_64.rpm

Red Hat Enterprise Linux HPC Node (v. 6):

Source:
samba-3.6.23-51.el6.src.rpm

x86_64:
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 HPC Node Optional (v. 6):

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
samba-debuginfo-3.6.23-51.el6.i686.rpm
samba-debuginfo-3.6.23-51.el6.x86_64.rpm
samba-doc-3.6.23-51.el6.x86_64.rpm
samba-domainjoin-gui-3.6.23-51.el6.x86_64.rpm
samba-glusterfs-3.6.23-51.el6.x86_64.rpm
samba-swat-3.6.23-51.el6.x86_64.rpm
samba-winbind-devel-3.6.23-51.el6.i686.rpm
samba-winbind-devel-3.6.23-51.el6.x86_64.rpm
samba-winbind-krb5-locator-3.6.23-51.el6.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
samba-3.6.23-51.el6.src.rpm

i386:
libsmbclient-3.6.23-51.el6.i686.rpm
samba-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

ppc64:
libsmbclient-3.6.23-51.el6.ppc.rpm
libsmbclient-3.6.23-51.el6.ppc64.rpm
samba-3.6.23-51.el6.ppc64.rpm
samba-client-3.6.23-51.el6.ppc64.rpm
samba-common-3.6.23-51.el6.ppc.rpm
samba-common-3.6.23-51.el6.ppc64.rpm
samba-debuginfo-3.6.23-51.el6.ppc.rpm
samba-debuginfo-3.6.23-51.el6.ppc64.rpm
samba-winbind-3.6.23-51.el6.ppc64.rpm
samba-winbind-clients-3.6.23-51.el6.ppc.rpm
samba-winbind-clients-3.6.23-51.el6.ppc64.rpm

s390x:
libsmbclient-3.6.23-51.el6.s390.rpm
libsmbclient-3.6.23-51.el6.s390x.rpm
samba-3.6.23-51.el6.s390x.rpm
samba-client-3.6.23-51.el6.s390x.rpm
samba-common-3.6.23-51.el6.s390.rpm
samba-common-3.6.23-51.el6.s390x.rpm
samba-debuginfo-3.6.23-51.el6.s390.rpm
samba-debuginfo-3.6.23-51.el6.s390x.rpm
samba-winbind-3.6.23-51.el6.s390x.rpm
samba-winbind-clients-3.6.23-51.el6.s390.rpm
samba-winbind-clients-3.6.23-51.el6.s390x.rpm

x86_64:
libsmbclient-3.6.23-51.el6.i686.rpm
libsmbclient-3.6.23-51.el6.x86_64.rpm
samba-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 Server 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

ppc64:
libsmbclient-devel-3.6.23-51.el6.ppc.rpm
libsmbclient-devel-3.6.23-51.el6.ppc64.rpm
samba-debuginfo-3.6.23-51.el6.ppc.rpm
samba-debuginfo-3.6.23-51.el6.ppc64.rpm
samba-doc-3.6.23-51.el6.ppc64.rpm
samba-domainjoin-gui-3.6.23-51.el6.ppc64.rpm
samba-swat-3.6.23-51.el6.ppc64.rpm
samba-winbind-devel-3.6.23-51.el6.ppc.rpm
samba-winbind-devel-3.6.23-51.el6.ppc64.rpm
samba-winbind-krb5-locator-3.6.23-51.el6.ppc64.rpm

s390x:
libsmbclient-devel-3.6.23-51.el6.s390.rpm
libsmbclient-devel-3.6.23-51.el6.s390x.rpm
samba-debuginfo-3.6.23-51.el6.s390.rpm
samba-debuginfo-3.6.23-51.el6.s390x.rpm
samba-doc-3.6.23-51.el6.s390x.rpm
samba-domainjoin-gui-3.6.23-51.el6.s390x.rpm
samba-swat-3.6.23-51.el6.s390x.rpm
samba-winbind-devel-3.6.23-51.el6.s390.rpm
samba-winbind-devel-3.6.23-51.el6.s390x.rpm
samba-winbind-krb5-locator-3.6.23-51.el6.s390x.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
samba-debuginfo-3.6.23-51.el6.i686.rpm
samba-debuginfo-3.6.23-51.el6.x86_64.rpm
samba-doc-3.6.23-51.el6.x86_64.rpm
samba-domainjoin-gui-3.6.23-51.el6.x86_64.rpm
samba-glusterfs-3.6.23-51.el6.x86_64.rpm
samba-swat-3.6.23-51.el6.x86_64.rpm
samba-winbind-devel-3.6.23-51.el6.i686.rpm
samba-winbind-devel-3.6.23-51.el6.x86_64.rpm
samba-winbind-krb5-locator-3.6.23-51.el6.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
samba-3.6.23-51.el6.src.rpm

i386:
libsmbclient-3.6.23-51.el6.i686.rpm
samba-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-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 Workstation 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
samba-debuginfo-3.6.23-51.el6.i686.rpm
samba-debuginfo-3.6.23-51.el6.x86_64.rpm
samba-doc-3.6.23-51.el6.x86_64.rpm
samba-domainjoin-gui-3.6.23-51.el6.x86_64.rpm
samba-glusterfs-3.6.23-51.el6.x86_64.rpm
samba-swat-3.6.23-51.el6.x86_64.rpm
samba-winbind-devel-3.6.23-51.el6.i686.rpm
samba-winbind-devel-3.6.23-51.el6.x86_64.rpm
samba-winbind-krb5-locator-3.6.23-51.el6.x86_64.rpm

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

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

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2018 Red Hat, Inc.
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