rhsa-2015_1011
Vulnerability from csaf_redhat
Published
2015-05-15 19:38
Modified
2024-11-14 15:27
Summary
Red Hat Security Advisory: rhev-hypervisor security update

Notes

Topic
Updated rhev-hypervisor packages that fix one security issue are now available. Red Hat Product Security has rated this update as having Important 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 rhev-hypervisor packages provide a Red Hat Enterprise Virtualization Hypervisor ISO disk image. The Red Hat Enterprise Virtualization Hypervisor is a dedicated Kernel-based Virtual Machine (KVM) hypervisor. It includes everything necessary to run and manage virtual machines: a subset of the Red Hat Enterprise Linux operating environment and the Red Hat Enterprise Virtualization Agent. Note: Red Hat Enterprise Virtualization Hypervisor is only available for the Intel 64 and AMD64 architectures with virtualization extensions. An out-of-bounds memory access flaw was found in the way QEMU's virtual Floppy Disk Controller (FDC) handled FIFO buffer access while processing certain FDC commands. A privileged guest user could use this flaw to crash the guest or, potentially, execute arbitrary code on the host with the privileges of the host's QEMU process corresponding to the guest. (CVE-2015-3456) Red Hat would like to thank Jason Geffner of CrowdStrike for reporting this issue. Users of the Red Hat Enterprise Virtualization Hypervisor are advised to upgrade to this updated package.
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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{
  "document": {
    "aggregate_severity": {
      "namespace": "https://access.redhat.com/security/updates/classification/",
      "text": "Important"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "Updated rhev-hypervisor packages that fix one security issue are now\navailable.\n\nRed Hat Product Security has rated this update as having Important 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.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "The rhev-hypervisor packages provide a Red Hat Enterprise Virtualization\nHypervisor ISO disk image. The Red Hat Enterprise Virtualization Hypervisor\nis a dedicated Kernel-based Virtual Machine (KVM) hypervisor. It includes\neverything necessary to run and manage virtual machines: a subset of the\nRed Hat Enterprise Linux operating environment and the Red Hat Enterprise\nVirtualization Agent.\n\nNote: Red Hat Enterprise Virtualization Hypervisor is only available for\nthe Intel 64 and AMD64 architectures with virtualization extensions.\n\nAn out-of-bounds memory access flaw was found in the way QEMU\u0027s virtual\nFloppy Disk Controller (FDC) handled FIFO buffer access while processing\ncertain FDC commands. A privileged guest user could use this flaw to crash\nthe guest or, potentially, execute arbitrary code on the host with the\nprivileges of the host\u0027s QEMU process corresponding to the guest.\n(CVE-2015-3456)\n\nRed Hat would like to thank Jason Geffner of CrowdStrike for reporting\nthis issue.\n\nUsers of the Red Hat Enterprise Virtualization Hypervisor are advised to\nupgrade to this updated package.",
        "title": "Details"
      },
      {
        "category": "legal_disclaimer",
        "text": "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.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://access.redhat.com/security/team/contact/",
      "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
      "name": "Red Hat Product Security",
      "namespace": "https://www.redhat.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "https://access.redhat.com/errata/RHSA-2015:1011",
        "url": "https://access.redhat.com/errata/RHSA-2015:1011"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/updates/classification/#important",
        "url": "https://access.redhat.com/security/updates/classification/#important"
      },
      {
        "category": "external",
        "summary": "1218611",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1218611"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2015/rhsa-2015_1011.json"
      }
    ],
    "title": "Red Hat Security Advisory: rhev-hypervisor security update",
    "tracking": {
      "current_release_date": "2024-11-14T15:27:31+00:00",
      "generator": {
        "date": "2024-11-14T15:27:31+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "4.2.0"
        }
      },
      "id": "RHSA-2015:1011",
      "initial_release_date": "2015-05-15T19:38:54+00:00",
      "revision_history": [
        {
          "date": "2015-05-15T19:38:54+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2015-05-15T19:38:54+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2024-11-14T15:27:31+00:00",
          "number": "3",
          "summary": "Last generated version"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "RHEL 7-based RHEV-H",
                "product": {
                  "name": "RHEL 7-based RHEV-H",
                  "product_id": "7Server-RHEV-Hypervisor-7",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:enterprise_linux:7::hypervisor"
                  }
                }
              },
              {
                "category": "product_name",
                "name": "RHEV Hypervisor for RHEL-6",
                "product": {
                  "name": "RHEV Hypervisor for RHEL-6",
                  "product_id": "6Server-RHEV-Hypervisor",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:redhat:enterprise_linux:6::hypervisor"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Red Hat Virtualization"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "rhev-hypervisor7-0:7.1-20150512.1.el7ev.noarch",
                "product": {
                  "name": "rhev-hypervisor7-0:7.1-20150512.1.el7ev.noarch",
                  "product_id": "rhev-hypervisor7-0:7.1-20150512.1.el7ev.noarch",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/rhev-hypervisor7@7.1-20150512.1.el7ev?arch=noarch"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "rhev-hypervisor6-0:6.6-20150512.0.el6ev.noarch",
                "product": {
                  "name": "rhev-hypervisor6-0:6.6-20150512.0.el6ev.noarch",
                  "product_id": "rhev-hypervisor6-0:6.6-20150512.0.el6ev.noarch",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/rhev-hypervisor6@6.6-20150512.0.el6ev?arch=noarch"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "noarch"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "rhev-hypervisor7-0:7.1-20150512.1.el7ev.src",
                "product": {
                  "name": "rhev-hypervisor7-0:7.1-20150512.1.el7ev.src",
                  "product_id": "rhev-hypervisor7-0:7.1-20150512.1.el7ev.src",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/rhev-hypervisor7@7.1-20150512.1.el7ev?arch=src"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "src"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "rhev-hypervisor6-0:6.6-20150512.0.el6ev.noarch as a component of RHEV Hypervisor for RHEL-6",
          "product_id": "6Server-RHEV-Hypervisor:rhev-hypervisor6-0:6.6-20150512.0.el6ev.noarch"
        },
        "product_reference": "rhev-hypervisor6-0:6.6-20150512.0.el6ev.noarch",
        "relates_to_product_reference": "6Server-RHEV-Hypervisor"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "rhev-hypervisor7-0:7.1-20150512.1.el7ev.noarch as a component of RHEL 7-based RHEV-H",
          "product_id": "7Server-RHEV-Hypervisor-7:rhev-hypervisor7-0:7.1-20150512.1.el7ev.noarch"
        },
        "product_reference": "rhev-hypervisor7-0:7.1-20150512.1.el7ev.noarch",
        "relates_to_product_reference": "7Server-RHEV-Hypervisor-7"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "rhev-hypervisor7-0:7.1-20150512.1.el7ev.src as a component of RHEL 7-based RHEV-H",
          "product_id": "7Server-RHEV-Hypervisor-7:rhev-hypervisor7-0:7.1-20150512.1.el7ev.src"
        },
        "product_reference": "rhev-hypervisor7-0:7.1-20150512.1.el7ev.src",
        "relates_to_product_reference": "7Server-RHEV-Hypervisor-7"
      }
    ]
  },
  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Jason Geffner"
          ],
          "organization": "CrowdStrike"
        }
      ],
      "cve": "CVE-2015-3456",
      "cwe": {
        "id": "CWE-119",
        "name": "Improper Restriction of Operations within the Bounds of a Memory Buffer"
      },
      "discovery_date": "2015-05-04T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1218611"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "An out-of-bounds memory access flaw was found in the way QEMU\u0027s virtual Floppy Disk Controller (FDC) handled FIFO buffer access while processing certain FDC commands. A privileged guest user could use this flaw to crash the guest or, potentially, execute arbitrary code on the host with the privileges of the host\u0027s QEMU process corresponding to the guest.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "qemu: fdc: out-of-bounds fifo buffer memory access",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This issue affects the versions of the kvm and xen packages as shipped with Red Hat Enterprise Linux 5, the versions of the qemu-kvm packages as shipped with Red Hat Enterprise Linux 6 and 7, and the versions of qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3. Future updates for the respective releases will address this flaw.",
          "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": [
          "6Server-RHEV-Hypervisor:rhev-hypervisor6-0:6.6-20150512.0.el6ev.noarch",
          "7Server-RHEV-Hypervisor-7:rhev-hypervisor7-0:7.1-20150512.1.el7ev.noarch",
          "7Server-RHEV-Hypervisor-7:rhev-hypervisor7-0:7.1-20150512.1.el7ev.src"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2015-3456"
        },
        {
          "category": "external",
          "summary": "RHBZ#1218611",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1218611"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2015-3456",
          "url": "https://www.cve.org/CVERecord?id=CVE-2015-3456"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2015-3456",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2015-3456"
        },
        {
          "category": "external",
          "summary": "http://venom.crowdstrike.com/",
          "url": "http://venom.crowdstrike.com/"
        },
        {
          "category": "external",
          "summary": "http://xenbits.xen.org/xsa/advisory-133.html",
          "url": "http://xenbits.xen.org/xsa/advisory-133.html"
        },
        {
          "category": "external",
          "summary": "https://access.redhat.com/articles/1444903",
          "url": "https://access.redhat.com/articles/1444903"
        },
        {
          "category": "external",
          "summary": "https://securityblog.redhat.com/2015/05/13/venom-dont-get-bitten/",
          "url": "https://securityblog.redhat.com/2015/05/13/venom-dont-get-bitten/"
        }
      ],
      "release_date": "2015-05-13T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2015-05-15T19:38:54+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": [
            "6Server-RHEV-Hypervisor:rhev-hypervisor6-0:6.6-20150512.0.el6ev.noarch",
            "7Server-RHEV-Hypervisor-7:rhev-hypervisor7-0:7.1-20150512.1.el7ev.noarch",
            "7Server-RHEV-Hypervisor-7:rhev-hypervisor7-0:7.1-20150512.1.el7ev.src"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2015:1011"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "HIGH",
            "accessVector": "ADJACENT_NETWORK",
            "authentication": "SINGLE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 6.5,
            "confidentialityImpact": "COMPLETE",
            "integrityImpact": "COMPLETE",
            "vectorString": "AV:A/AC:H/Au:S/C:C/I:C/A:C",
            "version": "2.0"
          },
          "products": [
            "6Server-RHEV-Hypervisor:rhev-hypervisor6-0:6.6-20150512.0.el6ev.noarch",
            "7Server-RHEV-Hypervisor-7:rhev-hypervisor7-0:7.1-20150512.1.el7ev.noarch",
            "7Server-RHEV-Hypervisor-7:rhev-hypervisor7-0:7.1-20150512.1.el7ev.src"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "qemu: fdc: out-of-bounds fifo buffer memory access"
    }
  ]
}


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