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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2012.1075 Low: Red Hat Storage 2.0 security, bug fix, and enhancement update #3 13 November 2012 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Red Hat Storage Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 5 Red Hat Enterprise Linux WS/Desktop 5 Red Hat Enterprise Linux Server 6 Red Hat Enterprise Linux WS/Desktop 6 UNIX variants (UNIX, Linux, OSX) Impact/Access: Overwrite Arbitrary Files -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2012-4417 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2012-1456.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Low: Red Hat Storage 2.0 security, bug fix, and enhancement update #3 Advisory ID: RHSA-2012:1456-01 Product: Red Hat Storage Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-1456.html Issue date: 2012-11-12 CVE Names: CVE-2012-4417 ===================================================================== 1. Summary: Updated glusterfs packages that fix multiple security issues, several bugs, and contain enhancements are now available for Red Hat Storage 2.0. The Red Hat Security Response Team has rated this update as having low 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 Storage Native Client for Red Hat Enterprise Linux 5 - x86_64 Red Hat Storage Native Client for Red Hat Enterprise Linux 6 - x86_64 Red Hat Storage Server 2.0 - noarch, x86_64 3. Description: Red Hat Storage is software only, scale-out storage that provides flexible and affordable unstructured data storage for the enterprise. GlusterFS, a key building block of Red Hat Storage, is based on a stackable user-space design and can deliver exceptional performance for diverse workloads. GlusterFS aggregates various storage servers over network interconnects into one large, parallel network file system. Multiple insecure temporary file creation flaws were found in Red Hat Storage. A local user on the Red Hat Storage server could use these flaws to cause arbitrary files to be overwritten as the root user via a symbolic link attack. (CVE-2012-4417) These issues were discovered by Kurt Seifried of Red Hat, and Jim Meyering. This update also fixes the following bugs: * If geo-replication is started with a large number of small static files, E2BIG error is displayed. This is due to the way the rsync was invoked by geo-replication. This issue has been fixed and geo-replication works fine for large number of files. (BZ#859173) * RHS automatically modifies the smb.conf file and starts/restarts the SMB service when a new volume is created, regardless of the chkconfig status of the service. This results in an improper SMB configuration and errors are logged. This issue has been fixed by performing a "condrestart" instead of an unconditional "start". (BZ#863907) * Issuing "gluster peer probe" command on an Fully Qualified Domain Name (FQDN) that contains a number as the first character in the domain name resulted in the command failing. This issue has been fixed by allowing digits as the first character in the FQDN. (BZ#863908) * In a replicated configuration, rebooting one of the servers during active I/O have resulted in stale locks and caused some glusterfs commands to fail. This issue has been fixed by adjusting the timeout value. (BZ#866758) * In a replicated volume, when a file was in split-brain state, reads were still permitted on that file from the NFS mount. This issue has been fixed by reporting an I/O Error. (BZ#855913) * After an upgrade, Geo-replication status is "N/A" if the checkpoint service is not functional. This is due to the change of the location of unix domain sockets that are used for inter-component communication. This issue has been fixed by having glusterd specify the socket location to gsyncd. (BZ#873380) * On a replicate volume, when one of the brick is offline and from NFS mount when ln command is executed, the command fails. This is because getattr calls lookup with a NULL parent. This issue has been fixed by properly populating the parent information. (BZ#874051) In addition, this update adds the following enhancements: * This errata includes a replication enhancement called Server-side Quorum enforcement, which is a means to reduce the chances of split-brains. Quorum enforcement is at the glusterd level and each volume can choose whether or not to enforce quorum by setting the relevant volume options and the quorum default ratio is >50%. A ratio of >50% means that at any point in time, more than half the number of nodes in the trusted storage pool need to be started and connected to each other. If network disconnects and outages happen in such a way that a smaller portion of the storage pool is offline, bricks running in those nodes are taken down preventing further writes from happening to the minority. For a two node cluster, quorum enforcement will require an arbitrator in the trusted storage pool which does not have bricks participating in that quorum enforcing volume. (BZ#840122) * sosreport is a tool which generates debugging information for the system it is run on. This tool has been packaged in the Red Hat Storage channel. This will enable further Red Hat Storage specific tweaks and enhancements and improve debugability. (BZ#856673) All users of Red Hat Storage are advised to upgrade to these updated packages, which fix these issues and add these enhancements. 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/knowledge/articles/11258 5. Bugs fixed (http://bugzilla.redhat.com/): 840122 - Implement a server side quorum in glusterd 855913 - NFS Mount doesn't report "I/0 Error" when a file is in split-brain state 856341 - CVE-2012-4417 GlusterFS: insecure temporary file creation 856673 - Add sos to Red Hat Storage 859173 - geo-replication with large number of small static files will have E2BIG errors in logs. 863907 - GlusterFS automatically starts smb service when it is disabled w/ chkconfig 866758 - gluster volume status all "Failed to get names of volumes" when peer in volume is restarted during transaction 873380 - [3.3.0.4rhs-34.el6rhs.x86_64.rpm] geo-rep status gives N/A. 874051 - ln command execution fails on files with "invalid argument" error when executed the command from nfs mount 6. Package List: Red Hat Storage Native Client for Red Hat Enterprise Linux 5: Source: glusterfs-3.3.0.5rhs-37.el5.src.rpm x86_64: glusterfs-3.3.0.5rhs-37.el5.x86_64.rpm glusterfs-debuginfo-3.3.0.5rhs-37.el5.x86_64.rpm glusterfs-devel-3.3.0.5rhs-37.el5.x86_64.rpm glusterfs-fuse-3.3.0.5rhs-37.el5.x86_64.rpm glusterfs-rdma-3.3.0.5rhs-37.el5.x86_64.rpm Red Hat Storage Server 2.0: Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/RHS/SRPMS/glusterfs-3.3.0.5rhs-37.el6rhs.src.rpm ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/RHS/SRPMS/sos-2.2-17.1.el6rhs.src.rpm noarch: sos-2.2-17.1.el6rhs.noarch.rpm x86_64: glusterfs-3.3.0.5rhs-37.el6rhs.x86_64.rpm glusterfs-debuginfo-3.3.0.5rhs-37.el6rhs.x86_64.rpm glusterfs-devel-3.3.0.5rhs-37.el6rhs.x86_64.rpm glusterfs-fuse-3.3.0.5rhs-37.el6rhs.x86_64.rpm glusterfs-geo-replication-3.3.0.5rhs-37.el6rhs.x86_64.rpm glusterfs-rdma-3.3.0.5rhs-37.el6rhs.x86_64.rpm glusterfs-server-3.3.0.5rhs-37.el6rhs.x86_64.rpm Red Hat Storage Native Client for Red Hat Enterprise Linux 6: Source: glusterfs-3.3.0.5rhs-37.el6.src.rpm x86_64: glusterfs-3.3.0.5rhs-37.el6.x86_64.rpm glusterfs-debuginfo-3.3.0.5rhs-37.el6.x86_64.rpm glusterfs-devel-3.3.0.5rhs-37.el6.x86_64.rpm glusterfs-fuse-3.3.0.5rhs-37.el6.x86_64.rpm glusterfs-rdma-3.3.0.5rhs-37.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/#package 7. References: https://www.redhat.com/security/data/cve/CVE-2012-4417.html https://access.redhat.com/security/updates/classification/#low 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2012 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFQoUWaXlSAg2UNWIIRAlbRAKCkci33i7FSiMm0gHV/CgMROK0bvQCdHyC8 uN34WX2IHwVfVCdzh49fgqQ= =RlLe - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBUKGqXe4yVqjM2NGpAQIYxBAAhoKOw7EGPCk7/S7t+sWSW7thDGLZpn0h FxCcRvY3s8kf1kL5QgvKVdDTpCt20fDsjBQcDn6SZTNX9dbxSkiKsBpDDd1lYl0P HPkUx70GzlpSjFtargGiK0ut1txdlTX0D0ZudFCleDs+VIt0EgJie1rlfvAKNZzU 6O2guUAbOzbW69sSFCF2eqji0WXhTAA9sP4zJiwz25uyXMOAIdr2Z79GQlKgpJej 3ZPZ+/5Sar6uMZbKYvT7FU0RanO/HbUFrUesBvYw7w1tCcm184udoC2qqpkamzme iyMSE9h5kUBMlnSEULhOFgRIOFBbYMuP0uBA7BeS6Lm/URlfldpw3sa8ZgIwrV0m //UCmi4SQEDEhNEXvLDHMm+QaBxXVaocrJXTClmPxmk/z5Me0IE8fBTqZi7CqTny wOdIG5c0azOkY2Vb0KmrqeXLfOekLNmEvccSqqtONGSqktBTalp5DxljTFRgBAGz 4OD3GFZbz2w2vcSWZFye2i4meVjNq0UxqKmhxC6tHn0YuAp95ANaHMsCVR0X3ygR AVHZYVFp5YaHoiKs6xvh9cl0xFfvvx+HT5OFSPcXJs/IU5Vh8g0gsVti3zXlaLoY ogpK54d2p+qnAJd5Cp6hv2az6Alekfv0q5kzZL2Bx9vuEIc2j+riq6PC6+ZIUYB2 eW36Tdv73Q8= =hO+P -----END PGP SIGNATURE-----