rhsa-2016_0087
Vulnerability from csaf_redhat
Published
2016-01-28 15:55
Modified
2024-11-14 19:00
Summary
Red Hat Security Advisory: qemu-kvm-rhev security update

Notes

Topic
Updated qemu-kvm-rhev packages that fix two security issues are now available for Red Hat Enterprise Linux OpenStack Platform 6. Red Hat Product Security has rated this update as having Important 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. A use-after-free flaw was found in the way QEMU's IDE AHCI emulator processed certain AHCI Native Command Queuing (NCQ) AIO commands. A privileged guest user could use this flaw to crash the QEMU process instance or, potentially, execute arbitrary code on the host with privileges of the QEMU process. (CVE-2016-1568) An out-of-bounds read/write flaw was discovered in the way QEMU's Firmware Configuration device emulation processed certain firmware configurations. A privileged (CAP_SYS_RAWIO) guest user could use this flaw to crash the QEMU process instance or, potentially, execute arbitrary code on the host with privileges of the QEMU process. (CVE-2016-1714) Red Hat would like to thank Qinghao Tang of Qihoo 360 Marvel Team for reporting the CVE-2016-1568 issue, and Donghai Zhu of Alibaba for reporting the CVE-2016-1714 issue. All qemu-kvm-rhev users 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.


To clipboard 

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        "text": "Updated qemu-kvm-rhev packages that fix two security issues are now\navailable for Red Hat Enterprise Linux OpenStack Platform 6.\n\nRed Hat Product Security has rated this update as having Important 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.",
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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.\n\nA use-after-free flaw was found in the way QEMU\u0027s IDE AHCI emulator\nprocessed certain AHCI Native Command Queuing (NCQ) AIO commands.\nA privileged guest user could use this flaw to crash the QEMU process\ninstance or, potentially, execute arbitrary code on the host with\nprivileges of the QEMU process. (CVE-2016-1568)\n\nAn out-of-bounds read/write flaw was discovered in the way QEMU\u0027s Firmware\nConfiguration device emulation processed certain firmware configurations.\nA privileged (CAP_SYS_RAWIO) guest user could use this flaw to crash the\nQEMU process instance or, potentially, execute arbitrary code on the host\nwith privileges of the QEMU process. (CVE-2016-1714)\n\nRed Hat would like to thank Qinghao Tang of Qihoo 360 Marvel Team for\nreporting the CVE-2016-1568 issue, and Donghai Zhu of Alibaba for reporting\nthe CVE-2016-1714 issue.\n\nAll qemu-kvm-rhev users are advised to upgrade to these updated packages,\nwhich contain backported patches to correct these issues. After installing\nthis update, shut down all running virtual machines. Once all virtual\nmachines have shut down, start them again for this update to take effect.",
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  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Qinghao Tang"
          ],
          "organization": "Qihoo 360 Marvel Team"
        }
      ],
      "cve": "CVE-2016-1568",
      "cwe": {
        "id": "CWE-416",
        "name": "Use After Free"
      },
      "discovery_date": "2015-12-04T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1288532"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A use-after-free flaw was found in the way QEMU\u0027s IDE AHCI emulator processed certain AHCI Native Command Queuing (NCQ) AIO commands. A privileged guest user could use this flaw to crash the QEMU process instance or, potentially, execute arbitrary code on the host with privileges of the QEMU process.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Qemu: ide: ahci use-after-free vulnerability in aio port commands",
          "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",
          "url": "https://access.redhat.com/security/cve/CVE-2016-1568"
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          "summary": "RHBZ#1288532",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1288532"
        },
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          "summary": "https://www.cve.org/CVERecord?id=CVE-2016-1568",
          "url": "https://www.cve.org/CVERecord?id=CVE-2016-1568"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2016-1568",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-1568"
        }
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      "release_date": "2016-01-08T00:00:00+00:00",
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          "date": "2016-01-28T15:55:43+00:00",
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          "url": "https://access.redhat.com/errata/RHSA-2016:0087"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "HIGH",
            "accessVector": "ADJACENT_NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.0,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:A/AC:H/Au:S/C:P/I:P/A:P",
            "version": "2.0"
          },
          "products": [
            "7Server-RH7-RHOS-6.0:libcacard-devel-rhev-10:2.3.0-31.el7_2.7.x86_64",
            "7Server-RH7-RHOS-6.0:libcacard-rhev-10:2.3.0-31.el7_2.7.x86_64",
            "7Server-RH7-RHOS-6.0:libcacard-tools-rhev-10:2.3.0-31.el7_2.7.x86_64",
            "7Server-RH7-RHOS-6.0:qemu-img-rhev-10:2.3.0-31.el7_2.7.x86_64",
            "7Server-RH7-RHOS-6.0:qemu-kvm-common-rhev-10:2.3.0-31.el7_2.7.x86_64",
            "7Server-RH7-RHOS-6.0:qemu-kvm-rhev-10:2.3.0-31.el7_2.7.src",
            "7Server-RH7-RHOS-6.0:qemu-kvm-rhev-10:2.3.0-31.el7_2.7.x86_64",
            "7Server-RH7-RHOS-6.0:qemu-kvm-rhev-debuginfo-10:2.3.0-31.el7_2.7.x86_64",
            "7Server-RH7-RHOS-6.0:qemu-kvm-tools-rhev-10:2.3.0-31.el7_2.7.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "Qemu: ide: ahci use-after-free vulnerability in aio port commands"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Donghai Zhu"
          ],
          "organization": "Alibaba"
        }
      ],
      "cve": "CVE-2016-1714",
      "cwe": {
        "id": "CWE-125",
        "name": "Out-of-bounds Read"
      },
      "discovery_date": "2015-12-25T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1296060"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "An out-of-bounds read/write flaw was discovered in the way QEMU\u0027s Firmware Configuration device emulation processed certain firmware configurations. A privileged (CAP_SYS_RAWIO) guest user could use this flaw to crash the QEMU process instance or, potentially, execute arbitrary code on the host with privileges of the QEMU process.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Qemu: nvram: OOB r/w access in processing firmware configurations",
          "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": {
        "fixed": [
          "7Server-RH7-RHOS-6.0:libcacard-devel-rhev-10:2.3.0-31.el7_2.7.x86_64",
          "7Server-RH7-RHOS-6.0:libcacard-rhev-10:2.3.0-31.el7_2.7.x86_64",
          "7Server-RH7-RHOS-6.0:libcacard-tools-rhev-10:2.3.0-31.el7_2.7.x86_64",
          "7Server-RH7-RHOS-6.0:qemu-img-rhev-10:2.3.0-31.el7_2.7.x86_64",
          "7Server-RH7-RHOS-6.0:qemu-kvm-common-rhev-10:2.3.0-31.el7_2.7.x86_64",
          "7Server-RH7-RHOS-6.0:qemu-kvm-rhev-10:2.3.0-31.el7_2.7.src",
          "7Server-RH7-RHOS-6.0:qemu-kvm-rhev-10:2.3.0-31.el7_2.7.x86_64",
          "7Server-RH7-RHOS-6.0:qemu-kvm-rhev-debuginfo-10:2.3.0-31.el7_2.7.x86_64",
          "7Server-RH7-RHOS-6.0:qemu-kvm-tools-rhev-10:2.3.0-31.el7_2.7.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2016-1714"
        },
        {
          "category": "external",
          "summary": "RHBZ#1296060",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1296060"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2016-1714",
          "url": "https://www.cve.org/CVERecord?id=CVE-2016-1714"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2016-1714",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-1714"
        }
      ],
      "release_date": "2016-01-05T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2016-01-28T15:55:43+00:00",
          "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
          "product_ids": [
            "7Server-RH7-RHOS-6.0:libcacard-devel-rhev-10:2.3.0-31.el7_2.7.x86_64",
            "7Server-RH7-RHOS-6.0:libcacard-rhev-10:2.3.0-31.el7_2.7.x86_64",
            "7Server-RH7-RHOS-6.0:libcacard-tools-rhev-10:2.3.0-31.el7_2.7.x86_64",
            "7Server-RH7-RHOS-6.0:qemu-img-rhev-10:2.3.0-31.el7_2.7.x86_64",
            "7Server-RH7-RHOS-6.0:qemu-kvm-common-rhev-10:2.3.0-31.el7_2.7.x86_64",
            "7Server-RH7-RHOS-6.0:qemu-kvm-rhev-10:2.3.0-31.el7_2.7.src",
            "7Server-RH7-RHOS-6.0:qemu-kvm-rhev-10:2.3.0-31.el7_2.7.x86_64",
            "7Server-RH7-RHOS-6.0:qemu-kvm-rhev-debuginfo-10:2.3.0-31.el7_2.7.x86_64",
            "7Server-RH7-RHOS-6.0:qemu-kvm-tools-rhev-10:2.3.0-31.el7_2.7.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2016:0087"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "ADJACENT_NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.9,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:A/AC:M/Au:S/C:P/I:P/A:P",
            "version": "2.0"
          },
          "products": [
            "7Server-RH7-RHOS-6.0:libcacard-devel-rhev-10:2.3.0-31.el7_2.7.x86_64",
            "7Server-RH7-RHOS-6.0:libcacard-rhev-10:2.3.0-31.el7_2.7.x86_64",
            "7Server-RH7-RHOS-6.0:libcacard-tools-rhev-10:2.3.0-31.el7_2.7.x86_64",
            "7Server-RH7-RHOS-6.0:qemu-img-rhev-10:2.3.0-31.el7_2.7.x86_64",
            "7Server-RH7-RHOS-6.0:qemu-kvm-common-rhev-10:2.3.0-31.el7_2.7.x86_64",
            "7Server-RH7-RHOS-6.0:qemu-kvm-rhev-10:2.3.0-31.el7_2.7.src",
            "7Server-RH7-RHOS-6.0:qemu-kvm-rhev-10:2.3.0-31.el7_2.7.x86_64",
            "7Server-RH7-RHOS-6.0:qemu-kvm-rhev-debuginfo-10:2.3.0-31.el7_2.7.x86_64",
            "7Server-RH7-RHOS-6.0:qemu-kvm-tools-rhev-10:2.3.0-31.el7_2.7.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "Qemu: nvram: OOB r/w access in processing firmware configurations"
    }
  ]
}


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