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Red Hat: RHSA-2014:0867-01 Moderate: Samba DoS Threat Advisory

Redhat Large Esm H500
Updated samba packages that fix three security issues are now available for Red Hat Enterprise Linux 7. The Red Hat Security Response Team has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores,
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

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

Synopsis:          Moderate: samba security update
Advisory ID:       RHSA-2014:0867-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2014:0867.html
Issue date:        2014-07-09
CVE Names:         CVE-2014-0178 CVE-2014-0244 CVE-2014-3493 
====================================================================
1. Summary:

Updated samba packages that fix three security issues are now available for
Red Hat Enterprise Linux 7.

The Red Hat Security Response Team has rated this update as having Moderate
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Client (v. 7) - x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - 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 denial of service flaw was found in the way the sys_recvfile() function
of nmbd, the NetBIOS message block daemon, processed non-blocking sockets.
An attacker could send a specially crafted packet that, when processed,
would cause nmbd to enter an infinite loop and consume an excessive amount
of CPU time. (CVE-2014-0244)

A flaw was found in the way Samba created responses for certain
authenticated client requests when a shadow-copy VFS module was enabled.
An attacker able to send an authenticated request could use this flaw to
disclose limited portions of memory per each request. (CVE-2014-0178)

It was discovered that smbd, the Samba file server daemon, did not properly
handle certain files that were stored on the disk and used a valid Unicode
character in the file name. An attacker able to send an authenticated
non-Unicode request that attempted to read such a file could cause smbd to
crash. (CVE-2014-3493)

Red Hat would like to thank Daniel Berteaud of FIREWALL-SERVICES SARL for
reporting CVE-2014-0244, and the Samba project for reporting CVE-2014-0178
and CVE-2014-3493. The Samba project acknowledges Christof Schmitt as the
original reporter of CVE-2014-0178, and Simon Arlott as the original
reporter of CVE-2014-3493.

All Samba users are advised to upgrade to these updated packages, which
contain backported patches to correct these issues. 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.

This update is available via the Red Hat Network. Details on how to use the
Red Hat Network to apply this update are available at
https://access.redhat.com/site/articles/11258

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

1097815 - CVE-2014-0244 samba: nmbd denial of service
1101992 - CVE-2014-0178 samba: Uninitialized memory exposure
1108748 - CVE-2014-3493 samba: smbd unicode path names denial of service

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
samba-4.1.1-35.el7_0.src.rpm

x86_64:
libsmbclient-4.1.1-35.el7_0.i686.rpm
libsmbclient-4.1.1-35.el7_0.x86_64.rpm
libwbclient-4.1.1-35.el7_0.i686.rpm
libwbclient-4.1.1-35.el7_0.x86_64.rpm
samba-client-4.1.1-35.el7_0.x86_64.rpm
samba-common-4.1.1-35.el7_0.x86_64.rpm
samba-debuginfo-4.1.1-35.el7_0.i686.rpm
samba-debuginfo-4.1.1-35.el7_0.x86_64.rpm
samba-libs-4.1.1-35.el7_0.i686.rpm
samba-libs-4.1.1-35.el7_0.x86_64.rpm
samba-winbind-4.1.1-35.el7_0.x86_64.rpm
samba-winbind-modules-4.1.1-35.el7_0.i686.rpm
samba-winbind-modules-4.1.1-35.el7_0.x86_64.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

x86_64:
libsmbclient-devel-4.1.1-35.el7_0.i686.rpm
libsmbclient-devel-4.1.1-35.el7_0.x86_64.rpm
libwbclient-devel-4.1.1-35.el7_0.i686.rpm
libwbclient-devel-4.1.1-35.el7_0.x86_64.rpm
samba-4.1.1-35.el7_0.x86_64.rpm
samba-dc-4.1.1-35.el7_0.x86_64.rpm
samba-dc-libs-4.1.1-35.el7_0.x86_64.rpm
samba-debuginfo-4.1.1-35.el7_0.i686.rpm
samba-debuginfo-4.1.1-35.el7_0.x86_64.rpm
samba-devel-4.1.1-35.el7_0.i686.rpm
samba-devel-4.1.1-35.el7_0.x86_64.rpm
samba-pidl-4.1.1-35.el7_0.x86_64.rpm
samba-python-4.1.1-35.el7_0.x86_64.rpm
samba-test-4.1.1-35.el7_0.x86_64.rpm
samba-test-devel-4.1.1-35.el7_0.x86_64.rpm
samba-vfs-glusterfs-4.1.1-35.el7_0.x86_64.rpm
samba-winbind-clients-4.1.1-35.el7_0.x86_64.rpm
samba-winbind-krb5-locator-4.1.1-35.el7_0.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
samba-4.1.1-35.el7_0.src.rpm

x86_64:
libsmbclient-4.1.1-35.el7_0.i686.rpm
libsmbclient-4.1.1-35.el7_0.x86_64.rpm
libwbclient-4.1.1-35.el7_0.i686.rpm
libwbclient-4.1.1-35.el7_0.x86_64.rpm
samba-client-4.1.1-35.el7_0.x86_64.rpm
samba-common-4.1.1-35.el7_0.x86_64.rpm
samba-debuginfo-4.1.1-35.el7_0.i686.rpm
samba-debuginfo-4.1.1-35.el7_0.x86_64.rpm
samba-libs-4.1.1-35.el7_0.i686.rpm
samba-libs-4.1.1-35.el7_0.x86_64.rpm
samba-winbind-4.1.1-35.el7_0.x86_64.rpm
samba-winbind-modules-4.1.1-35.el7_0.i686.rpm
samba-winbind-modules-4.1.1-35.el7_0.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

x86_64:
libsmbclient-devel-4.1.1-35.el7_0.i686.rpm
libsmbclient-devel-4.1.1-35.el7_0.x86_64.rpm
libwbclient-devel-4.1.1-35.el7_0.i686.rpm
libwbclient-devel-4.1.1-35.el7_0.x86_64.rpm
samba-4.1.1-35.el7_0.x86_64.rpm
samba-dc-4.1.1-35.el7_0.x86_64.rpm
samba-dc-libs-4.1.1-35.el7_0.x86_64.rpm
samba-debuginfo-4.1.1-35.el7_0.i686.rpm
samba-debuginfo-4.1.1-35.el7_0.x86_64.rpm
samba-devel-4.1.1-35.el7_0.i686.rpm
samba-devel-4.1.1-35.el7_0.x86_64.rpm
samba-pidl-4.1.1-35.el7_0.x86_64.rpm
samba-python-4.1.1-35.el7_0.x86_64.rpm
samba-test-4.1.1-35.el7_0.x86_64.rpm
samba-test-devel-4.1.1-35.el7_0.x86_64.rpm
samba-vfs-glusterfs-4.1.1-35.el7_0.x86_64.rpm
samba-winbind-clients-4.1.1-35.el7_0.x86_64.rpm
samba-winbind-krb5-locator-4.1.1-35.el7_0.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
samba-4.1.1-35.el7_0.src.rpm

ppc64:
libsmbclient-4.1.1-35.el7_0.ppc.rpm
libsmbclient-4.1.1-35.el7_0.ppc64.rpm
libwbclient-4.1.1-35.el7_0.ppc.rpm
libwbclient-4.1.1-35.el7_0.ppc64.rpm
samba-4.1.1-35.el7_0.ppc64.rpm
samba-client-4.1.1-35.el7_0.ppc64.rpm
samba-common-4.1.1-35.el7_0.ppc64.rpm
samba-debuginfo-4.1.1-35.el7_0.ppc.rpm
samba-debuginfo-4.1.1-35.el7_0.ppc64.rpm
samba-libs-4.1.1-35.el7_0.ppc.rpm
samba-libs-4.1.1-35.el7_0.ppc64.rpm
samba-winbind-4.1.1-35.el7_0.ppc64.rpm
samba-winbind-modules-4.1.1-35.el7_0.ppc.rpm
samba-winbind-modules-4.1.1-35.el7_0.ppc64.rpm

s390x:
libsmbclient-4.1.1-35.el7_0.s390.rpm
libsmbclient-4.1.1-35.el7_0.s390x.rpm
libwbclient-4.1.1-35.el7_0.s390.rpm
libwbclient-4.1.1-35.el7_0.s390x.rpm
samba-4.1.1-35.el7_0.s390x.rpm
samba-client-4.1.1-35.el7_0.s390x.rpm
samba-common-4.1.1-35.el7_0.s390x.rpm
samba-debuginfo-4.1.1-35.el7_0.s390.rpm
samba-debuginfo-4.1.1-35.el7_0.s390x.rpm
samba-libs-4.1.1-35.el7_0.s390.rpm
samba-libs-4.1.1-35.el7_0.s390x.rpm
samba-winbind-4.1.1-35.el7_0.s390x.rpm
samba-winbind-modules-4.1.1-35.el7_0.s390.rpm
samba-winbind-modules-4.1.1-35.el7_0.s390x.rpm

x86_64:
libsmbclient-4.1.1-35.el7_0.i686.rpm
libsmbclient-4.1.1-35.el7_0.x86_64.rpm
libwbclient-4.1.1-35.el7_0.i686.rpm
libwbclient-4.1.1-35.el7_0.x86_64.rpm
samba-4.1.1-35.el7_0.x86_64.rpm
samba-client-4.1.1-35.el7_0.x86_64.rpm
samba-common-4.1.1-35.el7_0.x86_64.rpm
samba-debuginfo-4.1.1-35.el7_0.i686.rpm
samba-debuginfo-4.1.1-35.el7_0.x86_64.rpm
samba-libs-4.1.1-35.el7_0.i686.rpm
samba-libs-4.1.1-35.el7_0.x86_64.rpm
samba-python-4.1.1-35.el7_0.x86_64.rpm
samba-winbind-4.1.1-35.el7_0.x86_64.rpm
samba-winbind-modules-4.1.1-35.el7_0.i686.rpm
samba-winbind-modules-4.1.1-35.el7_0.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

ppc64:
libsmbclient-devel-4.1.1-35.el7_0.ppc.rpm
libsmbclient-devel-4.1.1-35.el7_0.ppc64.rpm
libwbclient-devel-4.1.1-35.el7_0.ppc.rpm
libwbclient-devel-4.1.1-35.el7_0.ppc64.rpm
samba-dc-4.1.1-35.el7_0.ppc64.rpm
samba-dc-libs-4.1.1-35.el7_0.ppc64.rpm
samba-debuginfo-4.1.1-35.el7_0.ppc.rpm
samba-debuginfo-4.1.1-35.el7_0.ppc64.rpm
samba-devel-4.1.1-35.el7_0.ppc.rpm
samba-devel-4.1.1-35.el7_0.ppc64.rpm
samba-pidl-4.1.1-35.el7_0.ppc64.rpm
samba-python-4.1.1-35.el7_0.ppc64.rpm
samba-test-4.1.1-35.el7_0.ppc64.rpm
samba-test-devel-4.1.1-35.el7_0.ppc64.rpm
samba-winbind-clients-4.1.1-35.el7_0.ppc64.rpm
samba-winbind-krb5-locator-4.1.1-35.el7_0.ppc64.rpm

s390x:
libsmbclient-devel-4.1.1-35.el7_0.s390.rpm
libsmbclient-devel-4.1.1-35.el7_0.s390x.rpm
libwbclient-devel-4.1.1-35.el7_0.s390.rpm
libwbclient-devel-4.1.1-35.el7_0.s390x.rpm
samba-dc-4.1.1-35.el7_0.s390x.rpm
samba-dc-libs-4.1.1-35.el7_0.s390x.rpm
samba-debuginfo-4.1.1-35.el7_0.s390.rpm
samba-debuginfo-4.1.1-35.el7_0.s390x.rpm
samba-devel-4.1.1-35.el7_0.s390.rpm
samba-devel-4.1.1-35.el7_0.s390x.rpm
samba-pidl-4.1.1-35.el7_0.s390x.rpm
samba-python-4.1.1-35.el7_0.s390x.rpm
samba-test-4.1.1-35.el7_0.s390x.rpm
samba-test-devel-4.1.1-35.el7_0.s390x.rpm
samba-winbind-clients-4.1.1-35.el7_0.s390x.rpm
samba-winbind-krb5-locator-4.1.1-35.el7_0.s390x.rpm

x86_64:
libsmbclient-devel-4.1.1-35.el7_0.i686.rpm
libsmbclient-devel-4.1.1-35.el7_0.x86_64.rpm
libwbclient-devel-4.1.1-35.el7_0.i686.rpm
libwbclient-devel-4.1.1-35.el7_0.x86_64.rpm
samba-dc-4.1.1-35.el7_0.x86_64.rpm
samba-dc-libs-4.1.1-35.el7_0.x86_64.rpm
samba-debuginfo-4.1.1-35.el7_0.i686.rpm
samba-debuginfo-4.1.1-35.el7_0.x86_64.rpm
samba-devel-4.1.1-35.el7_0.i686.rpm
samba-devel-4.1.1-35.el7_0.x86_64.rpm
samba-pidl-4.1.1-35.el7_0.x86_64.rpm
samba-test-4.1.1-35.el7_0.x86_64.rpm
samba-test-devel-4.1.1-35.el7_0.x86_64.rpm
samba-vfs-glusterfs-4.1.1-35.el7_0.x86_64.rpm
samba-winbind-clients-4.1.1-35.el7_0.x86_64.rpm
samba-winbind-krb5-locator-4.1.1-35.el7_0.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
samba-4.1.1-35.el7_0.src.rpm

x86_64:
libsmbclient-4.1.1-35.el7_0.i686.rpm
libsmbclient-4.1.1-35.el7_0.x86_64.rpm
libwbclient-4.1.1-35.el7_0.i686.rpm
libwbclient-4.1.1-35.el7_0.x86_64.rpm
samba-4.1.1-35.el7_0.x86_64.rpm
samba-client-4.1.1-35.el7_0.x86_64.rpm
samba-common-4.1.1-35.el7_0.x86_64.rpm
samba-debuginfo-4.1.1-35.el7_0.i686.rpm
samba-debuginfo-4.1.1-35.el7_0.x86_64.rpm
samba-libs-4.1.1-35.el7_0.i686.rpm
samba-libs-4.1.1-35.el7_0.x86_64.rpm
samba-python-4.1.1-35.el7_0.x86_64.rpm
samba-winbind-4.1.1-35.el7_0.x86_64.rpm
samba-winbind-modules-4.1.1-35.el7_0.i686.rpm
samba-winbind-modules-4.1.1-35.el7_0.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7):

x86_64:
libsmbclient-devel-4.1.1-35.el7_0.i686.rpm
libsmbclient-devel-4.1.1-35.el7_0.x86_64.rpm
libwbclient-devel-4.1.1-35.el7_0.i686.rpm
libwbclient-devel-4.1.1-35.el7_0.x86_64.rpm
samba-dc-4.1.1-35.el7_0.x86_64.rpm
samba-dc-libs-4.1.1-35.el7_0.x86_64.rpm
samba-debuginfo-4.1.1-35.el7_0.i686.rpm
samba-debuginfo-4.1.1-35.el7_0.x86_64.rpm
samba-devel-4.1.1-35.el7_0.i686.rpm
samba-devel-4.1.1-35.el7_0.x86_64.rpm
samba-pidl-4.1.1-35.el7_0.x86_64.rpm
samba-test-4.1.1-35.el7_0.x86_64.rpm
samba-test-devel-4.1.1-35.el7_0.x86_64.rpm
samba-vfs-glusterfs-4.1.1-35.el7_0.x86_64.rpm
samba-winbind-clients-4.1.1-35.el7_0.x86_64.rpm
samba-winbind-krb5-locator-4.1.1-35.el7_0.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/#package

7. References:

https://access.redhat.com/security/cve/CVE-2014-0178
https://access.redhat.com/security/cve/CVE-2014-0244
https://access.redhat.com/security/cve/CVE-2014-3493
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 2014 Red Hat, Inc.
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Red Hat: RHSA-2014:0867-01 Moderate: Samba DoS Threat Advisory

red hat
Calendar Grey July 9, 2014
Dist Redhat Esm H88
New samba updates for Red Hat Enterprise Linux address four concerns classified with moderate security implications. It's recommended to upgrade.
Updated samba packages that fix three security issues are now available for Red Hat Enterprise Linux 7

Solution

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

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/site/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 denial of service flaw was found in the way the sys_recvfile() function of nmbd, the NetBIOS message block daemon, processed non-blocking sockets. An attacker could send a specially crafted packet that, when processed, would cause nmbd to enter an infinite loop and consume an excessive amount of CPU time. (CVE-2014-0244)
A flaw was found in the way Samba created responses for certain authenticated client requests when a shadow-copy VFS module was enabled. An attacker able to send an authenticated request could use this flaw to disclose limited portions of memory per each request. (CVE-2014-0178)
It was discovered that smbd, the Samba file server daemon, did not properly handle certain files that were stored on the disk and used a valid Unicode character in the file name. An attacker able to send an authenticated non-Unicode request that attempted to read such a file could cause smbd to crash. (CVE-2014-3493)
Red Hat would like to thank Daniel Berteaud of FIREWALL-SERVICES SARL for reporting CVE-2014-0244, and the Samba project for reporting CVE-2014-0178 and CVE-2014-3493. The Samba project acknowledges Christof Schmitt as the original reporter of CVE-2014-0178, and Simon Arlott as the original reporter of CVE-2014-3493.
All Samba users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. After installing this update, the smb service will be restarted automatically.

References

https://access.redhat.com/security/cve/CVE-2014-0178 https://access.redhat.com/security/cve/CVE-2014-0244 https://access.redhat.com/security/cve/CVE-2014-3493 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: samba-4.1.1-35.el7_0.src.rpm
x86_64: libsmbclient-4.1.1-35.el7_0.i686.rpm libsmbclient-4.1.1-35.el7_0.x86_64.rpm libwbclient-4.1.1-35.el7_0.i686.rpm libwbclient-4.1.1-35.el7_0.x86_64.rpm samba-client-4.1.1-35.el7_0.x86_64.rpm samba-common-4.1.1-35.el7_0.x86_64.rpm samba-debuginfo-4.1.1-35.el7_0.i686.rpm samba-debuginfo-4.1.1-35.el7_0.x86_64.rpm samba-libs-4.1.1-35.el7_0.i686.rpm samba-libs-4.1.1-35.el7_0.x86_64.rpm samba-winbind-4.1.1-35.el7_0.x86_64.rpm samba-winbind-modules-4.1.1-35.el7_0.i686.rpm samba-winbind-modules-4.1.1-35.el7_0.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: libsmbclient-devel-4.1.1-35.el7_0.i686.rpm libsmbclient-devel-4.1.1-35.el7_0.x86_64.rpm libwbclient-devel-4.1.1-35.el7_0.i686.rpm libwbclient-devel-4.1.1-35.el7_0.x86_64.rpm samba-4.1.1-35.el7_0.x86_64.rpm samba-dc-4.1.1-35.el7_0.x86_64.rpm samba-dc-libs-4.1.1-35.el7_0.x86_64.rpm samba-debuginfo-4.1.1-35.el7_0.i686.rpm samba-debuginfo-4.1.1-35.el7_0.x86_64.rpm samba-devel-4.1.1-35.el7_0.i686.rpm samba-devel-4.1.1-35.el7_0.x86_64.rpm samba-pidl-4.1.1-35.el7_0.x86_64.rpm samba-python-4.1.1-35.el7_0.x86_64.rpm samba-test-4.1.1-35.el7_0.x86_64.rpm samba-test-devel-4.1.1-35.el7_0.x86_64.rpm

Read the Full Advisory


Advisory ID: RHSA-2014:0867-01
Product: Red Hat Enterprise Linux
Issue date: 2014-07-09

Topic

Updated samba packages that fix three security issues are now available forRed Hat Enterprise Linux 7.The Red Hat Security Response Team has rated this update as having Moderatesecurity impact. Common Vulnerability Scoring System (CVSS) base scores,which give detailed severity ratings, are available for each vulnerabilityfrom the CVE links in the References section.

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64

Red Hat Enterprise Linux Server (v. 7) - ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

Bugs Fixed

1097815 - CVE-2014-0244 samba: nmbd denial of service

1101992 - CVE-2014-0178 samba: Uninitialized memory exposure

1108748 - CVE-2014-3493 samba: smbd unicode path names denial of service

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