rhsa-2012_1456
Vulnerability from csaf_redhat
Published
2012-11-12 18:45
Modified
2024-11-22 05:47
Summary
Red Hat Security Advisory: Red Hat Storage 2.0 security, bug fix, and enhancement update #3

Notes

Topic
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.
Details
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.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.


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        "text": "Updated glusterfs packages that fix multiple security issues, several bugs,\nand contain enhancements are now available for Red Hat Storage 2.0.\n\nThe Red Hat Security Response Team has rated this update as having low\nsecurity impact. A Common Vulnerability Scoring System (CVSS) base score,\nwhich gives a detailed severity rating, is available from the CVE link in\nthe References section.",
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        "text": "Red Hat Storage is software only, scale-out storage that provides flexible\nand affordable unstructured data storage for the enterprise. GlusterFS, a\nkey building block of Red Hat Storage, is based on a stackable user-space\ndesign and can deliver exceptional performance for diverse workloads.\nGlusterFS aggregates various storage servers over network interconnects\ninto one large, parallel network file system.\n\nMultiple insecure temporary file creation flaws were found in Red Hat\nStorage. A local user on the Red Hat Storage server could use these flaws\nto cause arbitrary files to be overwritten as the root user via a symbolic\nlink attack. (CVE-2012-4417)\n\nThese issues were discovered by Kurt Seifried of Red Hat, and Jim Meyering.\n\nThis update also fixes the following bugs:\n\n* If geo-replication is started with a large number of small static files,\nE2BIG error is displayed. This is due to the way the rsync was invoked by\ngeo-replication. This issue has been fixed and geo-replication works fine\nfor large number of files. (BZ#859173)\n\n* RHS automatically modifies the smb.conf file and starts/restarts the SMB\nservice when a new volume is created, regardless of the chkconfig status of\nthe service. This results in an improper SMB configuration and errors are\nlogged. This issue has been fixed by performing a \"condrestart\" instead of\nan unconditional \"start\". (BZ#863907)\n\n* Issuing \"gluster peer probe\" command on an Fully Qualified Domain Name\n(FQDN) that contains a number as the first character in the domain name\nresulted in the command failing. This issue has been fixed by allowing\ndigits as the first character in the FQDN. (BZ#863908)\n\n* In a replicated configuration, rebooting one of the servers during active\nI/O have resulted in stale locks and caused some glusterfs commands to\nfail. This issue has been fixed by adjusting the timeout value. (BZ#866758)\n\n* In a replicated volume, when a file was in split-brain state, reads were\nstill permitted on that file from the NFS mount. This issue has been fixed\nby reporting an I/O Error. (BZ#855913)\n\n* After an upgrade, Geo-replication status is \"N/A\" if the checkpoint\nservice is not functional. This is due to the change of the location of\nunix domain sockets that are used for inter-component communication. This\nissue has been fixed by having glusterd specify the socket location to\ngsyncd. (BZ#873380)\n\n* On a replicate volume, when one of the brick is offline and from NFS\nmount when ln command is executed, the command fails. This is because\ngetattr calls lookup with a NULL parent. This issue has been fixed by\nproperly populating the parent information. (BZ#874051)\n\nIn addition, this update adds the following enhancements:\n\n* This errata includes a replication enhancement called Server-side Quorum\nenforcement, which is a means to reduce the chances of split-brains. Quorum\nenforcement is at the glusterd level and each volume can choose whether or\nnot to enforce quorum by setting the relevant volume options and the quorum\ndefault ratio is \u003e50%. A ratio of \u003e50% means that at any point in time,\nmore than half the number of nodes in the trusted storage pool need to be\nstarted and connected to each other. If network disconnects and outages\nhappen in such a way that a smaller portion of the storage pool is offline,\nbricks running in those nodes are taken down preventing further writes from\nhappening to the minority. For a two node cluster, quorum enforcement will\nrequire an arbitrator in the trusted storage pool which does not have\nbricks participating in that quorum enforcing volume. (BZ#840122)\n\n* sosreport is a tool which generates debugging information for the system\nit is run on. This tool has been packaged in the Red Hat Storage channel.\nThis will enable further Red Hat Storage specific tweaks and enhancements\nand improve debugability. (BZ#856673)\n\nAll users of Red Hat Storage are advised to upgrade to these updated\npackages, which fix these issues and add these enhancements.",
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          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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            "6Server-RHS-6.2.z:sos-0:2.2-17.1.el6rhs.noarch",
            "6Server-RHS-6.2.z:sos-0:2.2-17.1.el6rhs.src",
            "6Server-RHSClient:glusterfs-0:3.3.0.5rhs-37.el6.src",
            "6Server-RHSClient:glusterfs-0:3.3.0.5rhs-37.el6.x86_64",
            "6Server-RHSClient:glusterfs-debuginfo-0:3.3.0.5rhs-37.el6.x86_64",
            "6Server-RHSClient:glusterfs-devel-0:3.3.0.5rhs-37.el6.x86_64",
            "6Server-RHSClient:glusterfs-fuse-0:3.3.0.5rhs-37.el6.x86_64",
            "6Server-RHSClient:glusterfs-rdma-0:3.3.0.5rhs-37.el6.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "GlusterFS: insecure temporary file creation"
    }
  ]
}


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