rhsa-2014_1670
Vulnerability from csaf_redhat
Published
2014-10-20 17:19
Modified
2024-11-14 14:31
Summary
Red Hat Security Advisory: qemu-kvm-rhev security and bug fix update

Notes

Topic
Updated qemu-kvm-rhev packages that fix one security issue and one bug are now available for Red Hat Enterprise Linux 7. Red Hat Product Security 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
KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. The qemu-kvm-rhev package provides the user-space component for running virtual machines using KVM in environments managed by Red Hat Enterprise Virtualization Manager. An information leak flaw was found in the way QEMU's VGA emulator accessed frame buffer memory for high resolution displays. A privileged guest user could use this flaw to leak memory contents of the host to the guest by setting the display to use a high resolution in the guest. (CVE-2014-3615) This issue was discovered by Laszlo Ersek of Red Hat. This update also fixes the following bug: * This update fixes a bug that caused the relative path to a backing file image to be switched to an absolute path during a live merge (block-commit). (BZ#1122925) All users of qemu-kvm-rhev are advised to upgrade to these updated packages, which contain backported patches to correct these issues. After installing this update, shut down all running virtual machines. Once all virtual machines have shut down, start them again for this update to take effect.
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 qemu-kvm-rhev packages that fix one security issue and one bug are\nnow available for Red Hat Enterprise Linux 7.\n\nRed Hat Product Security has rated this update as having Low security\nimpact. A Common Vulnerability Scoring System (CVSS) base score, which\ngives a detailed severity rating, is available from the CVE link in the\nReferences section.",
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        "text": "KVM (Kernel-based Virtual Machine) is a full virtualization solution for\nLinux on AMD64 and Intel 64 systems. The qemu-kvm-rhev package provides the\nuser-space component for running virtual machines using KVM in environments\nmanaged by Red Hat Enterprise Virtualization Manager.\n\nAn information leak flaw was found in the way QEMU\u0027s VGA emulator accessed\nframe buffer memory for high resolution displays. A privileged guest user\ncould use this flaw to leak memory contents of the host to the guest by\nsetting the display to use a high resolution in the guest. (CVE-2014-3615)\n\nThis issue was discovered by Laszlo Ersek of Red Hat.\n\nThis update also fixes the following bug:\n\n* This update fixes a bug that caused the relative path to a backing file\nimage to be switched to an absolute path during a live merge\n(block-commit). (BZ#1122925)\n\nAll users of qemu-kvm-rhev are advised to upgrade to these updated\npackages, which contain backported patches to correct these issues. After\ninstalling this update, shut down all running virtual machines. Once all\nvirtual machines have shut down, start them again for this update to take\neffect.",
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  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Laszlo Ersek"
          ],
          "organization": "Red Hat",
          "summary": "This issue was discovered by Red Hat."
        }
      ],
      "cve": "CVE-2014-3615",
      "cwe": {
        "id": "CWE-200",
        "name": "Exposure of Sensitive Information to an Unauthorized Actor"
      },
      "discovery_date": "2014-08-14T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1139115"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "An information leak flaw was found in the way QEMU\u0027s VGA emulator accessed frame buffer memory for high resolution displays. A privileged guest user could use this flaw to leak memory contents of the host to the guest by setting the display to use a high resolution in the guest.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Qemu: information leakage when guest sets high resolution",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This issue does not affect the versions of kvm package as shipped with Red Hat\nEnterprise Linux 5 or the versions of qemu-kvm package as shipped with Red Hat Enterprise Linux 6.",
          "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"
        }
      ],
      "product_status": {
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          "7Server-RHEV-Agents-7:qemu-kvm-tools-rhev-10:1.5.3-60.el7_0.10.x86_64"
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      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2014-3615"
        },
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          "category": "external",
          "summary": "RHBZ#1139115",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1139115"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2014-3615",
          "url": "https://www.cve.org/CVERecord?id=CVE-2014-3615"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2014-3615",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2014-3615"
        }
      ],
      "release_date": "2014-09-05T00:00:00+00:00",
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          "category": "vendor_fix",
          "date": "2014-10-20T17:19:59+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 use the\nRed Hat Network to apply this update are available at\nhttps://access.redhat.com/articles/11258",
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            "accessComplexity": "HIGH",
            "accessVector": "ADJACENT_NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "NONE",
            "baseScore": 2.9,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:A/AC:H/Au:S/C:P/I:P/A:N",
            "version": "2.0"
          },
          "products": [
            "7Server-RHEV-Agents-7:libcacard-devel-rhev-10:1.5.3-60.el7_0.10.x86_64",
            "7Server-RHEV-Agents-7:libcacard-rhev-10:1.5.3-60.el7_0.10.x86_64",
            "7Server-RHEV-Agents-7:libcacard-tools-rhev-10:1.5.3-60.el7_0.10.x86_64",
            "7Server-RHEV-Agents-7:qemu-img-rhev-10:1.5.3-60.el7_0.10.x86_64",
            "7Server-RHEV-Agents-7:qemu-kvm-common-rhev-10:1.5.3-60.el7_0.10.x86_64",
            "7Server-RHEV-Agents-7:qemu-kvm-rhev-10:1.5.3-60.el7_0.10.src",
            "7Server-RHEV-Agents-7:qemu-kvm-rhev-10:1.5.3-60.el7_0.10.x86_64",
            "7Server-RHEV-Agents-7:qemu-kvm-rhev-debuginfo-10:1.5.3-60.el7_0.10.x86_64",
            "7Server-RHEV-Agents-7:qemu-kvm-tools-rhev-10:1.5.3-60.el7_0.10.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "Qemu: information leakage when guest sets high resolution"
    }
  ]
}


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