rhsa-2010:0521
Vulnerability from csaf_redhat
Published
2010-07-08 19:59
Modified
2024-11-14 10:49
Summary
Red Hat Security Advisory: gfs-kmod security update

Notes

Topic
Updated gfs-kmod packages that fix one security issue are now available for Red Hat Enterprise Linux 5.4 Extended Update Support, kernel release 2.6.18-164.19.1.el5. 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.
Details
The gfs-kmod packages contain modules that provide the ability to mount and use GFS file systems. A flaw was found in the gfs_lock() implementation. The GFS locking code could skip the lock operation for files that have the S_ISGID bit (set-group-ID on execution) in their mode set. A local, unprivileged user on a system that has a GFS file system mounted could use this flaw to cause a kernel panic. (CVE-2010-0727) These updated gfs-kmod packages are in sync with the latest kernel (2.6.18-164.19.1.el5). The modules in earlier gfs-kmod packages failed to load because they did not match the running kernel. It was possible to force-load the modules. With this update, however, users no longer need to. Users are advised to upgrade to these latest gfs-kmod packages, updated for use with the 2.6.18-164.19.1.el5 kernel, which contain a backported patch to correct this issue.
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 gfs-kmod packages that fix one security issue are now available for\nRed Hat Enterprise Linux 5.4 Extended Update Support, kernel release\n2.6.18-164.19.1.el5.\n\nThe Red Hat Security Response Team has rated this update as having moderate\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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  "vulnerabilities": [
    {
      "cve": "CVE-2010-0727",
      "discovery_date": "2010-03-08T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "570863"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "The gfs2_lock function in the Linux kernel before 2.6.34-rc1-next-20100312, and the gfs_lock function in the Linux kernel on Red Hat Enterprise Linux (RHEL) 5 and 6, does not properly remove POSIX locks on files that are setgid without group-execute permission, which allows local users to cause a denial of service (BUG and system crash) by locking a file on a (1) GFS or (2) GFS2 filesystem, and then changing this file\u0027s permissions.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "kernel: bug in GFS/GFS2 locking code leads to dos",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This issue did not affect the version of Linux kernel as shipped with Red Hat Enterprise MRG, as it did not include support for the GFS and GFS2 file systems.\n\nFor the GFS issue, it was addressed in Red Hat Enterprise Linux 3 in the gfs package, 4 in the GFS-kernel package, and 5 in the gfs-kmod package, via RHSA-2010:9493, RHSA-2010:9494, RHSA-2010:0291 respectively.\n\nFor the GFS2 issue, it was addressed in Red Hat Enterprise Linux 5 in the kernel package via RHSA-2010:0178.",
          "title": "Statement"
        },
        {
          "category": "general",
          "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.",
          "title": "CVSS score applicability"
        }
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      "product_status": {
        "fixed": [
          "5Server-ClusterStorage-5.4.Z:gfs-kmod-0:0.1.34-2.el5_4.3.src",
          "5Server-ClusterStorage-5.4.Z:gfs-kmod-debuginfo-0:0.1.34-2.el5_4.3.i686",
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          "5Server-ClusterStorage-5.4.Z:gfs-kmod-debuginfo-0:0.1.34-2.el5_4.3.x86_64",
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          "5Server-ClusterStorage-5.4.Z:kmod-gfs-0:0.1.34-2.el5_4.3.ia64",
          "5Server-ClusterStorage-5.4.Z:kmod-gfs-0:0.1.34-2.el5_4.3.ppc64",
          "5Server-ClusterStorage-5.4.Z:kmod-gfs-0:0.1.34-2.el5_4.3.x86_64",
          "5Server-ClusterStorage-5.4.Z:kmod-gfs-PAE-0:0.1.34-2.el5_4.3.i686",
          "5Server-ClusterStorage-5.4.Z:kmod-gfs-xen-0:0.1.34-2.el5_4.3.i686",
          "5Server-ClusterStorage-5.4.Z:kmod-gfs-xen-0:0.1.34-2.el5_4.3.ia64",
          "5Server-ClusterStorage-5.4.Z:kmod-gfs-xen-0:0.1.34-2.el5_4.3.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2010-0727"
        },
        {
          "category": "external",
          "summary": "RHBZ#570863",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=570863"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2010-0727",
          "url": "https://www.cve.org/CVERecord?id=CVE-2010-0727"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2010-0727",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2010-0727"
        }
      ],
      "release_date": "2010-03-11T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2010-07-08T19:59:00+00:00",
          "details": "Before applying this update, make sure all previously-released errata\nrelevant to your system have been applied.\n\nThis update is available via the Red Hat Network. Details on how to\nuse the Red Hat Network to apply this update are available at\nhttp://kbase.redhat.com/faq/docs/DOC-11259",
          "product_ids": [
            "5Server-ClusterStorage-5.4.Z:gfs-kmod-0:0.1.34-2.el5_4.3.src",
            "5Server-ClusterStorage-5.4.Z:gfs-kmod-debuginfo-0:0.1.34-2.el5_4.3.i686",
            "5Server-ClusterStorage-5.4.Z:gfs-kmod-debuginfo-0:0.1.34-2.el5_4.3.ia64",
            "5Server-ClusterStorage-5.4.Z:gfs-kmod-debuginfo-0:0.1.34-2.el5_4.3.ppc64",
            "5Server-ClusterStorage-5.4.Z:gfs-kmod-debuginfo-0:0.1.34-2.el5_4.3.x86_64",
            "5Server-ClusterStorage-5.4.Z:kmod-gfs-0:0.1.34-2.el5_4.3.i686",
            "5Server-ClusterStorage-5.4.Z:kmod-gfs-0:0.1.34-2.el5_4.3.ia64",
            "5Server-ClusterStorage-5.4.Z:kmod-gfs-0:0.1.34-2.el5_4.3.ppc64",
            "5Server-ClusterStorage-5.4.Z:kmod-gfs-0:0.1.34-2.el5_4.3.x86_64",
            "5Server-ClusterStorage-5.4.Z:kmod-gfs-PAE-0:0.1.34-2.el5_4.3.i686",
            "5Server-ClusterStorage-5.4.Z:kmod-gfs-xen-0:0.1.34-2.el5_4.3.i686",
            "5Server-ClusterStorage-5.4.Z:kmod-gfs-xen-0:0.1.34-2.el5_4.3.ia64",
            "5Server-ClusterStorage-5.4.Z:kmod-gfs-xen-0:0.1.34-2.el5_4.3.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2010:0521"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "LOW",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 4.9,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:C",
            "version": "2.0"
          },
          "products": [
            "5Server-ClusterStorage-5.4.Z:gfs-kmod-0:0.1.34-2.el5_4.3.src",
            "5Server-ClusterStorage-5.4.Z:gfs-kmod-debuginfo-0:0.1.34-2.el5_4.3.i686",
            "5Server-ClusterStorage-5.4.Z:gfs-kmod-debuginfo-0:0.1.34-2.el5_4.3.ia64",
            "5Server-ClusterStorage-5.4.Z:gfs-kmod-debuginfo-0:0.1.34-2.el5_4.3.ppc64",
            "5Server-ClusterStorage-5.4.Z:gfs-kmod-debuginfo-0:0.1.34-2.el5_4.3.x86_64",
            "5Server-ClusterStorage-5.4.Z:kmod-gfs-0:0.1.34-2.el5_4.3.i686",
            "5Server-ClusterStorage-5.4.Z:kmod-gfs-0:0.1.34-2.el5_4.3.ia64",
            "5Server-ClusterStorage-5.4.Z:kmod-gfs-0:0.1.34-2.el5_4.3.ppc64",
            "5Server-ClusterStorage-5.4.Z:kmod-gfs-0:0.1.34-2.el5_4.3.x86_64",
            "5Server-ClusterStorage-5.4.Z:kmod-gfs-PAE-0:0.1.34-2.el5_4.3.i686",
            "5Server-ClusterStorage-5.4.Z:kmod-gfs-xen-0:0.1.34-2.el5_4.3.i686",
            "5Server-ClusterStorage-5.4.Z:kmod-gfs-xen-0:0.1.34-2.el5_4.3.ia64",
            "5Server-ClusterStorage-5.4.Z:kmod-gfs-xen-0:0.1.34-2.el5_4.3.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "kernel: bug in GFS/GFS2 locking code leads to dos"
    }
  ]
}


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