rhsa-2014_1076
Vulnerability from csaf_redhat
Published
2014-08-19 09:22
Modified
2024-11-22 08:20
Summary
Red Hat Security Advisory: qemu-kvm-rhev security and bug fix update

Notes

Topic
Updated qemu-kvm-rhev packages that fix two security issues and one bug are now available for Red Hat Enterprise Virtualization. Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links 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. Two integer overflow flaws were found in the QEMU block driver for QCOW version 1 disk images. A user able to alter the QEMU disk image files loaded by a guest could use either of these flaws to corrupt QEMU process memory on the host, which could potentially result in arbitrary code execution on the host with the privileges of the QEMU process. (CVE-2014-0222, CVE-2014-0223) Red Hat would like to thank NSA for reporting these issues. This update also fixes the following bug: * In certain scenarios, when performing live incremental migration, the disk size could be expanded considerably due to the transfer of unallocated sectors past the end of the base image. With this update, the bdrv_is_allocated() function has been fixed to no longer return "True" for unallocated sectors, and the disk size no longer changes after performing live incremental migration. (BZ#1110681) 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 two security issues and one bug are\nnow available for Red Hat Enterprise Virtualization.\n\nRed Hat Product Security has rated this update as having Moderate security\nimpact. Common Vulnerability Scoring System (CVSS) base scores, which give\ndetailed severity ratings, are available for each vulnerability from the\nCVE links in the References section.",
        "title": "Topic"
      },
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        "category": "general",
        "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\nTwo integer overflow flaws were found in the QEMU block driver for QCOW\nversion 1 disk images. A user able to alter the QEMU disk image files\nloaded by a guest could use either of these flaws to corrupt QEMU process\nmemory on the host, which could potentially result in arbitrary code\nexecution on the host with the privileges of the QEMU process.\n(CVE-2014-0222, CVE-2014-0223)\n\nRed Hat would like to thank NSA for reporting these issues.\n\nThis update also fixes the following bug:\n\n* In certain scenarios, when performing live incremental migration, the\ndisk size could be expanded considerably due to the transfer of unallocated\nsectors past the end of the base image. With this update, the\nbdrv_is_allocated() function has been fixed to no longer return \"True\" for\nunallocated sectors, and the disk size no longer changes after performing\nlive incremental migration. (BZ#1110681)\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.",
        "title": "Details"
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    ],
    "title": "Red Hat Security Advisory: qemu-kvm-rhev security and bug fix update",
    "tracking": {
      "current_release_date": "2024-11-22T08:20:58+00:00",
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          "category": "description",
          "text": "An integer overflow flaw was found in the QEMU block driver for QCOW version 1 disk images. A user able to alter the QEMU disk image files loaded by a guest could use this flaw to corrupt QEMU process memory on the host, which could potentially result in arbitrary code execution on the host with the privileges of the QEMU process.",
          "title": "Vulnerability description"
        },
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          "text": "Qemu: qcow1: validate L2 table size to avoid integer overflows",
          "title": "Vulnerability summary"
        },
        {
          "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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          "summary": "Canonical URL",
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          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1097216"
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          "url": "https://nvd.nist.gov/vuln/detail/CVE-2014-0222"
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          "date": "2014-08-19T09:22:39+00:00",
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      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "HIGH",
            "accessVector": "ADJACENT_NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.3,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:A/AC:H/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "products": [
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      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
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    },
    {
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          "names": [
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          ]
        }
      ],
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      },
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          "title": "Vulnerability description"
        },
        {
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          "text": "Qemu: qcow1: validate image size to avoid out-of-bounds memory access",
          "title": "Vulnerability summary"
        },
        {
          "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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      ],
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          "summary": "https://www.cve.org/CVERecord?id=CVE-2014-0223",
          "url": "https://www.cve.org/CVERecord?id=CVE-2014-0223"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2014-0223",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2014-0223"
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          "date": "2014-08-19T09:22:39+00:00",
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      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "HIGH",
            "accessVector": "ADJACENT_NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.3,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:A/AC:H/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "products": [
            "6Server-RHEV-Agents:qemu-img-rhev-2:0.12.1.2-2.415.el6_5.14.x86_64",
            "6Server-RHEV-Agents:qemu-kvm-rhev-2:0.12.1.2-2.415.el6_5.14.src",
            "6Server-RHEV-Agents:qemu-kvm-rhev-2:0.12.1.2-2.415.el6_5.14.x86_64",
            "6Server-RHEV-Agents:qemu-kvm-rhev-debuginfo-2:0.12.1.2-2.415.el6_5.14.x86_64",
            "6Server-RHEV-Agents:qemu-kvm-rhev-tools-2:0.12.1.2-2.415.el6_5.14.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "Qemu: qcow1: validate image size to avoid out-of-bounds memory access"
    }
  ]
}


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