-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: Red Hat Gluster Storage 3.2.0 samba security, bug fixes and enhancement update Advisory ID: RHSA-2017:0494-01 Product: Red Hat Gluster Storage Advisory URL: https://rhn.redhat.com/errata/RHSA-2017-0494.html Issue date: 2017-03-23 CVE Names: CVE-2016-2125 CVE-2016-2126 ===================================================================== 1. Summary: An update for samba is now available for Red Hat Gluster Storage 3.2 for RHEL 6. Red Hat Product Security has rated this update as having a security impact of Moderate. 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 Gluster 3.2 Samba on RHEL-6 - noarch, 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. The following packages have been upgraded to a later upstream version: samba (4.4.6). (BZ#1382291) Security Fix(es): * It was found that Samba always requested forwardable tickets when using Kerberos authentication. A service to which Samba authenticated using Kerberos could subsequently use the ticket to impersonate Samba to other services or domain users. (CVE-2016-2125) * A flaw was found in the way Samba handled PAC (Privilege Attribute Certificate) checksums. A remote, authenticated attacker could use this flaw to crash the winbindd process. (CVE-2016-2126) Enhancement(s): * The gluster vfs plugin now supports more than one volfile server. Samba tries to connect to the next server on the list if one of the gluster servers is not reachable. (BZ#1330081) * This update provides stability and improvements in error handling and code maintainability in the shadow copy module. (BZ#1385663) 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/): 1292781 - (RHEL6) CTDB: SELinux: ctdb disablescript fails to execute because of SELinux avc's 1330081 - [RHEL6] [RFE] gluster vfs plugin should be able to make use of multiple volfile server feature of gfapi 1379592 - [RHEL6] Bring content into empty distgit branch 1382291 - [RHEL6] Rebase Samba to 4.4.6 for RHGS 3.2.0 1385663 - [RHEL6] Back port changes in shadow copy module for VSS support from upstream 1403114 - CVE-2016-2125 samba: Unconditional privilege delegation to Kerberos servers in trusted realms 1403115 - CVE-2016-2126 samba: Flaws in Kerberos PAC validation can trigger privilege elevation 1406287 - [RHEL6] [SAMBA-CTDB]IP failover with ctdb leads to smbd crash 6. Package List: Red Hat Gluster 3.2 Samba on RHEL-6: Source: samba-4.4.6-4.el6rhs.src.rpm noarch: samba-common-4.4.6-4.el6rhs.noarch.rpm samba-pidl-4.4.6-4.el6rhs.noarch.rpm x86_64: ctdb-4.4.6-4.el6rhs.x86_64.rpm ctdb-tests-4.4.6-4.el6rhs.x86_64.rpm libsmbclient-4.4.6-4.el6rhs.x86_64.rpm libsmbclient-devel-4.4.6-4.el6rhs.x86_64.rpm libwbclient-4.4.6-4.el6rhs.x86_64.rpm libwbclient-devel-4.4.6-4.el6rhs.x86_64.rpm samba-4.4.6-4.el6rhs.x86_64.rpm samba-client-4.4.6-4.el6rhs.x86_64.rpm samba-client-libs-4.4.6-4.el6rhs.x86_64.rpm samba-common-libs-4.4.6-4.el6rhs.x86_64.rpm samba-common-tools-4.4.6-4.el6rhs.x86_64.rpm samba-dc-4.4.6-4.el6rhs.x86_64.rpm samba-dc-libs-4.4.6-4.el6rhs.x86_64.rpm samba-debuginfo-4.4.6-4.el6rhs.x86_64.rpm samba-devel-4.4.6-4.el6rhs.x86_64.rpm samba-krb5-printing-4.4.6-4.el6rhs.x86_64.rpm samba-libs-4.4.6-4.el6rhs.x86_64.rpm samba-python-4.4.6-4.el6rhs.x86_64.rpm samba-test-4.4.6-4.el6rhs.x86_64.rpm samba-test-libs-4.4.6-4.el6rhs.x86_64.rpm samba-vfs-glusterfs-4.4.6-4.el6rhs.x86_64.rpm samba-winbind-4.4.6-4.el6rhs.x86_64.rpm samba-winbind-clients-4.4.6-4.el6rhs.x86_64.rpm samba-winbind-krb5-locator-4.4.6-4.el6rhs.x86_64.rpm samba-winbind-modules-4.4.6-4.el6rhs.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-2016-2125 https://access.redhat.com/security/cve/CVE-2016-2126 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 2017 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFY03TPXlSAg2UNWIIRAui1AKCSvc4rOW6UmrhcQUDn0/VDOSJKSACfSyWu Qs4c1GAp0jJ3h6bmPIgca/Y= =3H8e -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce