rhsa-2016_2704
Vulnerability from csaf_redhat
Published
2016-11-14 19:44
Modified
2024-11-14 19:58
Summary
Red Hat Security Advisory: qemu-kvm-rhev security, bug fix, and enhancement update

Notes

Topic
An update for qemu-kvm-rhev is now available for Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) 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. The following packages have been upgraded to a newer upstream version: qemu-kvm-rhev (2.6.0). (BZ#1386381) Security Fix(es): * An out-of-bounds flaw was found in the QEMU emulator built using 'address_space_translate' to map an address to a MemoryRegionSection. The flaw could occur while doing pci_dma_read/write calls, resulting in an out-of-bounds read-write access error. A privileged user inside a guest could use this flaw to crash the guest instance (denial of service). (CVE-2015-8817, CVE-2015-8818) Red Hat would like to thank Donghai Zdh of Alibaba Inc. for reporting 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": "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.\n\nThe following packages have been upgraded to a newer upstream version: qemu-kvm-rhev (2.6.0). (BZ#1386381)\n\nSecurity Fix(es):\n\n* An out-of-bounds flaw was found in the QEMU emulator built using \u0027address_space_translate\u0027 to map an address to a MemoryRegionSection. The flaw could occur while doing pci_dma_read/write calls, resulting in an out-of-bounds read-write access error. A privileged user inside a guest could use this flaw to crash the guest instance (denial of service). (CVE-2015-8817, CVE-2015-8818)\n\nRed Hat would like to thank Donghai Zdh of Alibaba Inc. for reporting this issue.",
        "title": "Details"
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          "title": "Vulnerability description"
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        {
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          "text": "Qemu: OOB access in address_space_rw leads to segmentation fault",
          "title": "Vulnerability summary"
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        {
          "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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      "scores": [
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            "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"
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      ],
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          "details": "Low"
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      ],
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    },
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        }
      ],
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          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Qemu: OOB access in address_space_rw leads to segmentation fault",
          "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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          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2016:2704"
        }
      ],
      "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-7.0:qemu-img-rhev-10:2.6.0-27.el7.x86_64",
            "7Server-RH7-RHOS-7.0:qemu-kvm-common-rhev-10:2.6.0-27.el7.x86_64",
            "7Server-RH7-RHOS-7.0:qemu-kvm-rhev-10:2.6.0-27.el7.src",
            "7Server-RH7-RHOS-7.0:qemu-kvm-rhev-10:2.6.0-27.el7.x86_64",
            "7Server-RH7-RHOS-7.0:qemu-kvm-rhev-debuginfo-10:2.6.0-27.el7.x86_64",
            "7Server-RH7-RHOS-7.0:qemu-kvm-tools-rhev-10:2.6.0-27.el7.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "Qemu: OOB access in address_space_rw leads to segmentation fault"
    },
    {
      "acknowledgments": [
        {
          "names": [
            "Ling Liu"
          ],
          "organization": "Qihoo 360 Inc."
        }
      ],
      "cve": "CVE-2016-2857",
      "cwe": {
        "id": "CWE-125",
        "name": "Out-of-bounds Read"
      },
      "discovery_date": "2016-01-07T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1296567"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "An out-of-bounds read-access flaw was found in the QEMU emulator built with IP checksum routines. The flaw could occur when computing a TCP/UDP packet\u0027s checksum, because a QEMU function used the packet\u0027s payload length without checking against the data buffer\u0027s size. A user inside a guest could use this flaw to crash the QEMU process (denial of service).",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "Qemu: net: out of bounds read in net_checksum_calculate()",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This has been rated as having Low security impact and is not currently\nplanned to be addressed in future updates. For additional information, refer\nto the Red Hat Enterprise Linux Life Cycle:\nhttps://access.redhat.com/support/policy/updates/errata/.",
          "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": {
        "fixed": [
          "7Server-RH7-RHOS-7.0:qemu-img-rhev-10:2.6.0-27.el7.x86_64",
          "7Server-RH7-RHOS-7.0:qemu-kvm-common-rhev-10:2.6.0-27.el7.x86_64",
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          "7Server-RH7-RHOS-7.0:qemu-kvm-rhev-10:2.6.0-27.el7.x86_64",
          "7Server-RH7-RHOS-7.0:qemu-kvm-rhev-debuginfo-10:2.6.0-27.el7.x86_64",
          "7Server-RH7-RHOS-7.0:qemu-kvm-tools-rhev-10:2.6.0-27.el7.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2016-2857"
        },
        {
          "category": "external",
          "summary": "RHBZ#1296567",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1296567"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2016-2857",
          "url": "https://www.cve.org/CVERecord?id=CVE-2016-2857"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2016-2857",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-2857"
        }
      ],
      "release_date": "2016-02-17T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2016-11-14T19:44:07+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nAfter 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.",
          "product_ids": [
            "7Server-RH7-RHOS-7.0:qemu-img-rhev-10:2.6.0-27.el7.x86_64",
            "7Server-RH7-RHOS-7.0:qemu-kvm-common-rhev-10:2.6.0-27.el7.x86_64",
            "7Server-RH7-RHOS-7.0:qemu-kvm-rhev-10:2.6.0-27.el7.src",
            "7Server-RH7-RHOS-7.0:qemu-kvm-rhev-10:2.6.0-27.el7.x86_64",
            "7Server-RH7-RHOS-7.0:qemu-kvm-rhev-debuginfo-10:2.6.0-27.el7.x86_64",
            "7Server-RH7-RHOS-7.0:qemu-kvm-tools-rhev-10:2.6.0-27.el7.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2016:2704"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "ADJACENT_NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 4.3,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:A/AC:M/Au:N/C:P/I:N/A:P",
            "version": "2.0"
          },
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 4.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:L",
            "version": "3.0"
          },
          "products": [
            "7Server-RH7-RHOS-7.0:qemu-img-rhev-10:2.6.0-27.el7.x86_64",
            "7Server-RH7-RHOS-7.0:qemu-kvm-common-rhev-10:2.6.0-27.el7.x86_64",
            "7Server-RH7-RHOS-7.0:qemu-kvm-rhev-10:2.6.0-27.el7.src",
            "7Server-RH7-RHOS-7.0:qemu-kvm-rhev-10:2.6.0-27.el7.x86_64",
            "7Server-RH7-RHOS-7.0:qemu-kvm-rhev-debuginfo-10:2.6.0-27.el7.x86_64",
            "7Server-RH7-RHOS-7.0:qemu-kvm-tools-rhev-10:2.6.0-27.el7.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "Qemu: net: out of bounds read in net_checksum_calculate()"
    }
  ]
}


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