csaf_redhat - rhsa-2016

rhsa-2016_1001

Vulnerability from csaf_redhat

Published

2016-05-10 05:04

Modified

2024-11-14 19:53

Summary

Red Hat Security Advisory: qemu-kvm-rhev security 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 Important. 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. Security Fix: * An out-of-bounds read/write access flaw was found in the way QEMU's VGA emulation with VESA BIOS Extensions (VBE) support performed read/write operations using I/O port methods. A privileged guest user could use this flaw to execute arbitrary code on the host with the privileges of the host's QEMU process. (CVE-2016-3710) Red Hat would like to thank Wei Xiao (360 Marvel Team) and Qinghao Tang (360 Marvel Team) for reporting this issue.

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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{
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        "category": "summary",
        "text": "An update for qemu-kvm-rhev is now available for Red Hat Enterprise Linux\nOpenStack Platform 7.0 (Kilo) for RHEL 7.\n\nRed Hat Product Security has rated this update as having a security impact\nof Important. A Common Vulnerability Scoring System (CVSS) base score,\nwhich gives a detailed severity rating, is available for each vulnerability\nfrom the CVE link(s) in the References section.",
        "title": "Topic"
      },
      {
        "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                              \nSecurity Fix:      \n                               \n* An out-of-bounds read/write access flaw was found in the way QEMU\u0027s VGA \nemulation with VESA BIOS Extensions (VBE) support performed read/write\noperations using I/O port methods. A privileged guest user could use\nthis flaw to execute arbitrary code on the host with the privileges of the \nhost\u0027s QEMU process. (CVE-2016-3710)\n                               \nRed Hat would like to thank Wei Xiao (360 Marvel Team) and Qinghao Tang   \n(360 Marvel Team) for reporting this issue.",
        "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.",
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  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Qinghao Tang",
            "Wei Xiao"
          ],
          "organization": "360.cn Marvel Team"
        }
      ],
      "cve": "CVE-2016-3710",
      "discovery_date": "2016-04-22T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1331401"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "An out-of-bounds read/write access flaw was found in the way QEMU\u0027s VGA emulation with VESA BIOS Extensions (VBE) support performed read/write operations using I/O port methods. A privileged guest user could use this flaw to execute arbitrary code on the host with the privileges of the host\u0027s QEMU process.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "qemu: incorrect banked access bounds checking in vga module",
          "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-7.0:libcacard-rhev-10:2.3.0-31.el7_2.13.x86_64",
          "7Server-RH7-RHOS-7.0:libcacard-tools-rhev-10:2.3.0-31.el7_2.13.x86_64",
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          "7Server-RH7-RHOS-7.0:qemu-kvm-rhev-10:2.3.0-31.el7_2.13.src",
          "7Server-RH7-RHOS-7.0:qemu-kvm-rhev-10:2.3.0-31.el7_2.13.x86_64",
          "7Server-RH7-RHOS-7.0:qemu-kvm-rhev-debuginfo-10:2.3.0-31.el7_2.13.x86_64",
          "7Server-RH7-RHOS-7.0:qemu-kvm-tools-rhev-10:2.3.0-31.el7_2.13.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2016-3710"
        },
        {
          "category": "external",
          "summary": "RHBZ#1331401",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1331401"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2016-3710",
          "url": "https://www.cve.org/CVERecord?id=CVE-2016-3710"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2016-3710",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-3710"
        }
      ],
      "release_date": "2016-05-09T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2016-05-10T05:04:27+00:00",
          "details": "For details on how to apply this update, which includes the changes\ndescribed in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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            "7Server-RH7-RHOS-7.0:qemu-kvm-rhev-10:2.3.0-31.el7_2.13.x86_64",
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          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2016:1001"
        }
      ],
      "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"
          },
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.6,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.0"
          },
          "products": [
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            "7Server-RH7-RHOS-7.0:libcacard-tools-rhev-10:2.3.0-31.el7_2.13.x86_64",
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          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "qemu: incorrect banked access bounds checking in vga module"
    }
  ]
}

cve-2016-3710

Vulnerability from cvelistv5

Published

2016-05-11 21:00

Modified

2024-08-06 00:03

Severity ?

Summary

The VGA module in QEMU improperly performs bounds checking on banked access to video memory, which allows local guest OS administrators to execute arbitrary code on the host by changing access modes after setting the bank register, aka the "Dark Portal" issue.

References

▼	URL	Tags
	http://xenbits.xen.org/xsa/advisory-179.html	x_refsource_CONFIRM
	http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html	x_refsource_CONFIRM
	http://rhn.redhat.com/errata/RHSA-2016-0999.html	vendor-advisory, x_refsource_REDHAT
	http://www.securityfocus.com/bid/90316	vdb-entry, x_refsource_BID
	http://rhn.redhat.com/errata/RHSA-2016-0725.html	vendor-advisory, x_refsource_REDHAT
	http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html	x_refsource_CONFIRM
	http://rhn.redhat.com/errata/RHSA-2016-1000.html	vendor-advisory, x_refsource_REDHAT
	http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html	x_refsource_CONFIRM
	http://support.citrix.com/article/CTX212736	x_refsource_CONFIRM
	http://rhn.redhat.com/errata/RHSA-2016-1002.html	vendor-advisory, x_refsource_REDHAT
	http://rhn.redhat.com/errata/RHSA-2016-1001.html	vendor-advisory, x_refsource_REDHAT
	http://rhn.redhat.com/errata/RHSA-2016-0997.html	vendor-advisory, x_refsource_REDHAT
	https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05164862	x_refsource_CONFIRM
	http://www.securitytracker.com/id/1035794	vdb-entry, x_refsource_SECTRACK
	http://rhn.redhat.com/errata/RHSA-2016-1943.html	vendor-advisory, x_refsource_REDHAT
	http://rhn.redhat.com/errata/RHSA-2016-1019.html	vendor-advisory, x_refsource_REDHAT
	http://www.ubuntu.com/usn/USN-2974-1	vendor-advisory, x_refsource_UBUNTU
	http://www.openwall.com/lists/oss-security/2016/05/09/3	mailing-list, x_refsource_MLIST
	http://rhn.redhat.com/errata/RHSA-2016-0724.html	vendor-advisory, x_refsource_REDHAT
	https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg01197.html	mailing-list, x_refsource_MLIST
	https://access.redhat.com/errata/RHSA-2016:1224	vendor-advisory, x_refsource_REDHAT
	http://www.debian.org/security/2016/dsa-3573	vendor-advisory, x_refsource_DEBIAN

Impacted products

▼	Vendor	Product
	n/a	n/a

Show details on NVD website

JSON

To clipboard

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              "mailing-list",
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            "url": "http://www.openwall.com/lists/oss-security/2016/05/09/3"
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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