Moderate CentOS samba4 Update

Metadata

critical
10.0
samba4-4.0.0-55.el6.rc4.i686.rpm, samba4-4.0.0-55.el6.rc4.src.rpm, samba4-4.0.0-55.el6.rc4.x86_64.rpm, samba4-client-4.0.0-55.el6.rc4.i686.rpm, samba4-client-4.0.0-55.el6.rc4.x86_64.rpm, samba4-common-4.0.0-55.el6.rc4.i686.rpm, samba4-common-4.0.0-55.el6.rc4.x86_64.rpm, samba4-dc-4.0.0-55.el6.rc4.i686.rpm, samba4-dc-4.0.0-55.el6.rc4.x86_64.rpm, samba4-dc-libs-4.0.0-55.el6.rc4.i686.rpm, samba4-dc-libs-4.0.0-55.el6.rc4.x86_64.rpm, samba4-devel-4.0.0-55.el6.rc4.i686.rpm, samba4-devel-4.0.0-55.el6.rc4.x86_64.rpm, samba4-libs-4.0.0-55.el6.rc4.i686.rpm, samba4-libs-4.0.0-55.el6.rc4.x86_64.rpm, samba4-pidl-4.0.0-55.el6.rc4.i686.rpm, samba4-pidl-4.0.0-55.el6.rc4.x86_64.rpm, samba4-python-4.0.0-55.el6.rc4.i686.rpm, samba4-python-4.0.0-55.el6.rc4.x86_64.rpm, samba4-swat-4.0.0-55.el6.rc4.i686.rpm, samba4-swat-4.0.0-55.el6.rc4.x86_64.rpm, samba4-test-4.0.0-55.el6.rc4.i686.rpm, samba4-test-4.0.0-55.el6.rc4.x86_64.rpm, samba4-winbind-4.0.0-55.el6.rc4.i686.rpm, samba4-winbind-4.0.0-55.el6.rc4.x86_64.rpm, samba4-winbind-clients-4.0.0-55.el6.rc4.i686.rpm, samba4-winbind-clients-4.0.0-55.el6.rc4.x86_64.rpm, samba4-winbind-krb5-locator-4.0.0-55.el6.rc4.i686.rpm, samba4-winbind-krb5-locator-4.0.0-55.el6.rc4.x86_64.rpm
CVE-2012-1182
rhn.redhat.com, lists.centos.org, lists.centos.org
2013-03-09
2017-07-27 19:05
Moderate CentOS evolution-mapi Update
CVE-2012-1182 samba4
CVE-2012-1182 samba
CVE-2012-1182
2017-04-01 19:06
2017-01-05 20:10

Description


Updated samba4 packages that fix one security issue, multiple bugs, and add
various enhancements are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team 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.

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 Samba suite's Perl-based DCE/RPC IDL (PIDL)
compiler, used to generate code to handle RPC calls. This could result in
code generated by the PIDL compiler to not sufficiently protect against
buffer overflows. (CVE-2012-1182)

The samba4 packages have been upgraded to upstream version 4.0.0, which
provides a number of bug fixes and enhancements over the previous version.
In particular, improved interoperability with Active Directory (AD)
domains. SSSD now uses the libndr-krb5pac library to parse the Privilege
Attribute Certificate (PAC) issued by an AD Key Distribution Center (KDC).

The Cross Realm Kerberos Trust functionality provided by Identity
Management, which relies on the capabilities of the samba4 client library,
is included as a Technology Preview. This functionality and server
libraries, is included as a Technology Preview. This functionality uses the
libndr-nbt library to prepare Connection-less Lightweight Directory Access
Protocol (CLDAP) messages.

Additionally, various improvements have been made to the Local Security
Authority (LSA) and Net Logon services to allow verification of trust
from a Windows system. Because the Cross Realm Kerberos Trust functionality
is considered a Technology Preview, selected samba4 components are
considered to be a Technology Preview. For more information on which Samba
packages are considered a Technology Preview, refer to Table 5.1, "Samba4
Package Support" in the Release Notes, linked to from the References.
(BZ#766333, BZ#882188)

This update also fixes the following bug:

* Prior to this update, if the Active Directory (AD) server was rebooted,
Winbind sometimes failed to reconnect when requested by "wbinfo -n" or
"wbinfo -s" commands. Consequently, looking up users using the wbinfo tool
failed. This update applies upstream patches to fix this problem and now
looking up a Security Identifier (SID) for a username, or a username for a
given SID, works as expected after a domain controller is rebooted.
(BZ#878564)

All users of samba4 are advised to upgrade to these updated packages,
which fix these issues and add these enhancements.

Warning: If you upgrade from Red Hat Enterprise Linux 6.3 to Red Hat
Enterprise Linux 6.4 and you have Samba in use, you should make sure that
you uninstall the package named "samba4" to avoid conflicts during the
upgrade.
Please see https://www.redhat.com/footer/terms-of-use.html

Am I vulnerable?

The constraints below list the versions that this vulnerability is patched in, and versions that are unaffected. If a patch is ready but unrealeased, then it is pending.

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Affected package information

Release Package Patched in
6 samba4 samba4-4.0.0-55.el6.rc4.i686.rpm
samba4 samba4-4.0.0-55.el6.rc4.src.rpm
samba4 samba4-4.0.0-55.el6.rc4.x86_64.rpm
samba4-client samba4-client-4.0.0-55.el6.rc4.i686.rpm
samba4-client samba4-client-4.0.0-55.el6.rc4.x86_64.rpm
samba4-common samba4-common-4.0.0-55.el6.rc4.i686.rpm
samba4-common samba4-common-4.0.0-55.el6.rc4.x86_64.rpm
samba4-dc samba4-dc-4.0.0-55.el6.rc4.i686.rpm
samba4-dc samba4-dc-4.0.0-55.el6.rc4.x86_64.rpm
samba4-dc-libs samba4-dc-libs-4.0.0-55.el6.rc4.i686.rpm
samba4-dc-libs samba4-dc-libs-4.0.0-55.el6.rc4.x86_64.rpm
samba4-devel samba4-devel-4.0.0-55.el6.rc4.i686.rpm
samba4-devel samba4-devel-4.0.0-55.el6.rc4.x86_64.rpm
samba4-libs samba4-libs-4.0.0-55.el6.rc4.i686.rpm
samba4-libs samba4-libs-4.0.0-55.el6.rc4.x86_64.rpm
samba4-pidl samba4-pidl-4.0.0-55.el6.rc4.i686.rpm
samba4-pidl samba4-pidl-4.0.0-55.el6.rc4.x86_64.rpm
samba4-python samba4-python-4.0.0-55.el6.rc4.i686.rpm
samba4-python samba4-python-4.0.0-55.el6.rc4.x86_64.rpm
samba4-swat samba4-swat-4.0.0-55.el6.rc4.i686.rpm
samba4-swat samba4-swat-4.0.0-55.el6.rc4.x86_64.rpm
samba4-test samba4-test-4.0.0-55.el6.rc4.i686.rpm
samba4-test samba4-test-4.0.0-55.el6.rc4.x86_64.rpm
samba4-winbind samba4-winbind-4.0.0-55.el6.rc4.i686.rpm
samba4-winbind samba4-winbind-4.0.0-55.el6.rc4.x86_64.rpm
samba4-winbind-clients samba4-winbind-clients-4.0.0-55.el6.rc4.i686.rpm
samba4-winbind-clients samba4-winbind-clients-4.0.0-55.el6.rc4.x86_64.rpm
samba4-winbind-krb5-locator samba4-winbind-krb5-locator-4.0.0-55.el6.rc4.i686.rpm
samba4-winbind-krb5-locator samba4-winbind-krb5-locator-4.0.0-55.el6.rc4.x86_64.rpm