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Red Hat: RHSA-2016-0449-01 Moderate: Samba4 ACL Issue and Update

Redhat Large Esm H500
Updated samba4 packages that fix one security issue are now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having Moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which
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====================================================================                   Red Hat Security Advisory

Synopsis:          Moderate: samba4 security update
Advisory ID:       RHSA-2016:0449-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2016:0449.html
Issue date:        2016-03-15
CVE Names:         CVE-2015-7560 
====================================================================
1. Summary:

Updated samba4 packages that fix one security issue are now available
for Red Hat Enterprise Linux 6.

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

2. Relevant releases/architectures:

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

3. Description:

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

A flaw was found in the way Samba handled ACLs on symbolic links.
An authenticated user could use this flaw to gain access to an arbitrary
file or directory by overwriting its ACL. (CVE-2015-7560)

Red Hat would like to thank the Samba project for reporting this issue.
Upstream acknowledges Jeremy Allison (Google) and the Samba team as the
original reporters.

All samba4 users are advised to upgrade to these updated packages, which
contain a backported patch to correct this issue. After installing this
update, the smb service will be restarted automatically.

4. Solution:

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

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

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

1309992 - CVE-2015-7560 samba: Incorrect ACL get/set allowed on symlink path

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:
samba4-4.0.0-68.el6_7.rc4.src.rpm

i386:
samba4-4.0.0-68.el6_7.rc4.i686.rpm
samba4-client-4.0.0-68.el6_7.rc4.i686.rpm
samba4-common-4.0.0-68.el6_7.rc4.i686.rpm
samba4-dc-4.0.0-68.el6_7.rc4.i686.rpm
samba4-dc-libs-4.0.0-68.el6_7.rc4.i686.rpm
samba4-debuginfo-4.0.0-68.el6_7.rc4.i686.rpm
samba4-devel-4.0.0-68.el6_7.rc4.i686.rpm
samba4-libs-4.0.0-68.el6_7.rc4.i686.rpm
samba4-pidl-4.0.0-68.el6_7.rc4.i686.rpm
samba4-python-4.0.0-68.el6_7.rc4.i686.rpm
samba4-swat-4.0.0-68.el6_7.rc4.i686.rpm
samba4-test-4.0.0-68.el6_7.rc4.i686.rpm
samba4-winbind-4.0.0-68.el6_7.rc4.i686.rpm
samba4-winbind-clients-4.0.0-68.el6_7.rc4.i686.rpm
samba4-winbind-krb5-locator-4.0.0-68.el6_7.rc4.i686.rpm

x86_64:
samba4-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-client-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-common-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-dc-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-dc-libs-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-debuginfo-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-devel-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-libs-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-pidl-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-python-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-swat-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-test-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-winbind-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-winbind-clients-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-winbind-krb5-locator-4.0.0-68.el6_7.rc4.x86_64.rpm

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

Source:
samba4-4.0.0-68.el6_7.rc4.src.rpm

x86_64:
samba4-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-client-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-common-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-dc-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-dc-libs-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-debuginfo-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-devel-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-libs-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-pidl-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-python-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-swat-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-test-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-winbind-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-winbind-clients-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-winbind-krb5-locator-4.0.0-68.el6_7.rc4.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
samba4-4.0.0-68.el6_7.rc4.src.rpm

i386:
samba4-4.0.0-68.el6_7.rc4.i686.rpm
samba4-client-4.0.0-68.el6_7.rc4.i686.rpm
samba4-common-4.0.0-68.el6_7.rc4.i686.rpm
samba4-dc-4.0.0-68.el6_7.rc4.i686.rpm
samba4-dc-libs-4.0.0-68.el6_7.rc4.i686.rpm
samba4-debuginfo-4.0.0-68.el6_7.rc4.i686.rpm
samba4-devel-4.0.0-68.el6_7.rc4.i686.rpm
samba4-libs-4.0.0-68.el6_7.rc4.i686.rpm
samba4-pidl-4.0.0-68.el6_7.rc4.i686.rpm
samba4-python-4.0.0-68.el6_7.rc4.i686.rpm
samba4-swat-4.0.0-68.el6_7.rc4.i686.rpm
samba4-test-4.0.0-68.el6_7.rc4.i686.rpm
samba4-winbind-4.0.0-68.el6_7.rc4.i686.rpm
samba4-winbind-clients-4.0.0-68.el6_7.rc4.i686.rpm
samba4-winbind-krb5-locator-4.0.0-68.el6_7.rc4.i686.rpm

ppc64:
samba4-4.0.0-68.el6_7.rc4.ppc64.rpm
samba4-client-4.0.0-68.el6_7.rc4.ppc64.rpm
samba4-common-4.0.0-68.el6_7.rc4.ppc64.rpm
samba4-dc-4.0.0-68.el6_7.rc4.ppc64.rpm
samba4-dc-libs-4.0.0-68.el6_7.rc4.ppc64.rpm
samba4-debuginfo-4.0.0-68.el6_7.rc4.ppc64.rpm
samba4-devel-4.0.0-68.el6_7.rc4.ppc64.rpm
samba4-libs-4.0.0-68.el6_7.rc4.ppc64.rpm
samba4-pidl-4.0.0-68.el6_7.rc4.ppc64.rpm
samba4-python-4.0.0-68.el6_7.rc4.ppc64.rpm
samba4-swat-4.0.0-68.el6_7.rc4.ppc64.rpm
samba4-test-4.0.0-68.el6_7.rc4.ppc64.rpm
samba4-winbind-4.0.0-68.el6_7.rc4.ppc64.rpm
samba4-winbind-clients-4.0.0-68.el6_7.rc4.ppc64.rpm
samba4-winbind-krb5-locator-4.0.0-68.el6_7.rc4.ppc64.rpm

s390x:
samba4-4.0.0-68.el6_7.rc4.s390x.rpm
samba4-client-4.0.0-68.el6_7.rc4.s390x.rpm
samba4-common-4.0.0-68.el6_7.rc4.s390x.rpm
samba4-dc-4.0.0-68.el6_7.rc4.s390x.rpm
samba4-dc-libs-4.0.0-68.el6_7.rc4.s390x.rpm
samba4-debuginfo-4.0.0-68.el6_7.rc4.s390x.rpm
samba4-devel-4.0.0-68.el6_7.rc4.s390x.rpm
samba4-libs-4.0.0-68.el6_7.rc4.s390x.rpm
samba4-pidl-4.0.0-68.el6_7.rc4.s390x.rpm
samba4-python-4.0.0-68.el6_7.rc4.s390x.rpm
samba4-swat-4.0.0-68.el6_7.rc4.s390x.rpm
samba4-test-4.0.0-68.el6_7.rc4.s390x.rpm
samba4-winbind-4.0.0-68.el6_7.rc4.s390x.rpm
samba4-winbind-clients-4.0.0-68.el6_7.rc4.s390x.rpm
samba4-winbind-krb5-locator-4.0.0-68.el6_7.rc4.s390x.rpm

x86_64:
samba4-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-client-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-common-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-dc-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-dc-libs-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-debuginfo-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-devel-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-libs-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-pidl-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-python-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-swat-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-test-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-winbind-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-winbind-clients-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-winbind-krb5-locator-4.0.0-68.el6_7.rc4.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
samba4-4.0.0-68.el6_7.rc4.src.rpm

i386:
samba4-4.0.0-68.el6_7.rc4.i686.rpm
samba4-client-4.0.0-68.el6_7.rc4.i686.rpm
samba4-common-4.0.0-68.el6_7.rc4.i686.rpm
samba4-dc-4.0.0-68.el6_7.rc4.i686.rpm
samba4-dc-libs-4.0.0-68.el6_7.rc4.i686.rpm
samba4-debuginfo-4.0.0-68.el6_7.rc4.i686.rpm
samba4-devel-4.0.0-68.el6_7.rc4.i686.rpm
samba4-libs-4.0.0-68.el6_7.rc4.i686.rpm
samba4-pidl-4.0.0-68.el6_7.rc4.i686.rpm
samba4-python-4.0.0-68.el6_7.rc4.i686.rpm
samba4-swat-4.0.0-68.el6_7.rc4.i686.rpm
samba4-test-4.0.0-68.el6_7.rc4.i686.rpm
samba4-winbind-4.0.0-68.el6_7.rc4.i686.rpm
samba4-winbind-clients-4.0.0-68.el6_7.rc4.i686.rpm
samba4-winbind-krb5-locator-4.0.0-68.el6_7.rc4.i686.rpm

x86_64:
samba4-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-client-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-common-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-dc-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-dc-libs-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-debuginfo-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-devel-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-libs-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-pidl-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-python-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-swat-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-test-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-winbind-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-winbind-clients-4.0.0-68.el6_7.rc4.x86_64.rpm
samba4-winbind-krb5-locator-4.0.0-68.el6_7.rc4.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-2015-7560
https://access.redhat.com/security/updates/classification#moderate

8. Contact:

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

Copyright 2016 Red Hat, Inc.
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Red Hat: RHSA-2016-0449-01 Moderate: Samba4 ACL Issue and Update

red hat
Calendar Grey March 15, 2016
Dist Redhat Esm H88
The Red Hat security update addresses Samba4 vulnerabilities related to Access Control Lists (ACL), emphasizing moderate severity and the urgency for timely patches to enhance security.
Updated samba4 packages that fix one security issue are now available for Red Hat Enterprise Linux 6

Solution

Before applying this update, make sure all previously released errata relevant to your system have been applied.

For details on how to apply this update, refer to:

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

Summary

Samba is an open-source implementation of the Server Message Block (SMB) or Common Internet File System (CIFS) protocol, which allows PC-compatible machines to share files, printers, and other information.
A flaw was found in the way Samba handled ACLs on symbolic links. An authenticated user could use this flaw to gain access to an arbitrary file or directory by overwriting its ACL. (CVE-2015-7560)
Red Hat would like to thank the Samba project for reporting this issue. Upstream acknowledges Jeremy Allison (Google) and the Samba team as the original reporters.
All samba4 users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing this update, the smb service will be restarted automatically.

References

https://access.redhat.com/security/cve/CVE-2015-7560 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source: samba4-4.0.0-68.el6_7.rc4.src.rpm
i386: samba4-4.0.0-68.el6_7.rc4.i686.rpm samba4-client-4.0.0-68.el6_7.rc4.i686.rpm samba4-common-4.0.0-68.el6_7.rc4.i686.rpm samba4-dc-4.0.0-68.el6_7.rc4.i686.rpm samba4-dc-libs-4.0.0-68.el6_7.rc4.i686.rpm samba4-debuginfo-4.0.0-68.el6_7.rc4.i686.rpm samba4-devel-4.0.0-68.el6_7.rc4.i686.rpm samba4-libs-4.0.0-68.el6_7.rc4.i686.rpm samba4-pidl-4.0.0-68.el6_7.rc4.i686.rpm samba4-python-4.0.0-68.el6_7.rc4.i686.rpm samba4-swat-4.0.0-68.el6_7.rc4.i686.rpm samba4-test-4.0.0-68.el6_7.rc4.i686.rpm samba4-winbind-4.0.0-68.el6_7.rc4.i686.rpm samba4-winbind-clients-4.0.0-68.el6_7.rc4.i686.rpm samba4-winbind-krb5-locator-4.0.0-68.el6_7.rc4.i686.rpm
x86_64: samba4-4.0.0-68.el6_7.rc4.x86_64.rpm samba4-client-4.0.0-68.el6_7.rc4.x86_64.rpm samba4-common-4.0.0-68.el6_7.rc4.x86_64.rpm samba4-dc-4.0.0-68.el6_7.rc4.x86_64.rpm samba4-dc-libs-4.0.0-68.el6_7.rc4.x86_64.rpm samba4-debuginfo-4.0.0-68.el6_7.rc4.x86_64.rpm samba4-devel-4.0.0-68.el6_7.rc4.x86_64.rpm samba4-libs-4.0.0-68.el6_7.rc4.x86_64.rpm samba4-pidl-4.0.0-68.el6_7.rc4.x86_64.rpm samba4-python-4.0.0-68.el6_7.rc4.x86_64.rpm samba4-swat-4.0.0-68.el6_7.rc4.x86_64.rpm samba4-test-4.0.0-68.el6_7.rc4.x86_64.rpm

Read the Full Advisory


Advisory ID: RHSA-2016:0449-01
Product: Red Hat Enterprise Linux
Issue date: 2016-03-15

Topic

Updated samba4 packages that fix one security issue are now availablefor Red Hat Enterprise Linux 6.Red Hat Product Security has rated this update as having Moderate securityimpact. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available from the CVE link in theReferences section.

Relevant Releases Architectures

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

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

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

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

Bugs Fixed

1309992 - CVE-2015-7560 samba: Incorrect ACL get/set allowed on symlink path

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