Vulnerability-Lookup

CVE-2016-6833 (GCVE-0-2016-6833)

Vulnerability from cvelistv5 – Published: 2016-12-10 00:00 – Updated: 2024-08-06 01:43

Summary

Use-after-free vulnerability in the vmxnet3_io_bar0_write function in hw/net/vmxnet3.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (QEMU instance crash) by leveraging failure to check if the device is active.

Severity

4.4 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CWE

Assigner

redhat redhat root

References

7 references

URL	Tags
http://www.securityfocus.com/bid/93255	vdb-entryx_refsource_BID
https://lists.debian.org/debian-lts-announce/2018…	mailing-listx_refsource_MLIST
http://www.openwall.com/lists/oss-security/2016/08/12/1	mailing-listx_refsource_MLIST
https://lists.gnu.org/archive/html/qemu-devel/201…	mailing-listx_refsource_MLIST
https://security.gentoo.org/glsa/201609-01	vendor-advisoryx_refsource_GENTOO
http://www.openwall.com/lists/oss-security/2016/08/18/3	mailing-listx_refsource_MLIST
http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=6c…	x_refsource_CONFIRM

Date Public

2016-08-09 00:00

Show details on NVD website

JSON

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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2025-11-21T11:57:30+00:00",
      "cve": "CVE-2016-6833",
      "id": "CVE-2016-6833",
      "initial_release_date": "2016-08-09T00:00:00+00:00",
      "product_status:known_not_affected": "53",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "Qemu: net: vmxnet3: use-after-free while writing to device",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2016/cve-2016-6833.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-05T23:55:19Z",
      "cve": "CVE-2016-6833",
      "id": "CVE-2016-6833",
      "initial_release_date": "2023-02-15T04:59:06Z",
      "product_status:known_affected": "1",
      "product_status:known_not_affected": "184",
      "product_status:recommended": "1822",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2016-6833",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2016-6833.json",
      "version": "22"
    }
  }
}

CNVD-2016-06750

Vulnerability from cnvd - Published: 2016-08-26

Title

QEMU内存错误引用漏洞（CNVD-2016-06750）

Description

QEMU是法国程序员法布里斯-贝拉（Fabrice Bellard）所研发的一套模拟处理器软件。该软件具有速度快、跨平台等特点。建立与VMWARE VMXNET3 NIC设备支持的QEMU中存在内存错误引用漏洞。攻击者可利用该漏洞导致QEMU虚拟机进程崩溃，造成拒绝服务。

Severity

中

Patch Name

QEMU内存错误引用漏洞（CNVD-2016-06750）的补丁

Patch Description

QEMU是法国程序员法布里斯-贝拉（Fabrice Bellard）所研发的一套模拟处理器软件。该软件具有速度快、跨平台等特点。建立与VMWARE VMXNET3 NIC设备支持的QEMU中存在内存错误引用漏洞。攻击者可利用该漏洞导致QEMU虚拟机进程崩溃，造成拒绝服务。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

目前厂商已经发布了升级补丁以修复此安全问题，补丁获取链接： http://git.qemu.org/?p=qemu.git;a=commit;h=6c352ca9b4ee3e1e286ea9e8434bd8e69ac7d0d8

Reference

http://www.openwall.com/lists/oss-security/2016/08/18/3

Impacted products

Name
QEMU QEMU

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2016-6833"
    }
  },
  "description": "QEMU\u662f\u6cd5\u56fd\u7a0b\u5e8f\u5458\u6cd5\u5e03\u91cc\u65af-\u8d1d\u62c9\uff08Fabrice Bellard\uff09\u6240\u7814\u53d1\u7684\u4e00\u5957\u6a21\u62df\u5904\u7406\u5668\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u5177\u6709\u901f\u5ea6\u5feb\u3001\u8de8\u5e73\u53f0\u7b49\u7279\u70b9\u3002\r\n\r\n\u5efa\u7acb\u4e0eVMWARE VMXNET3 NIC\u8bbe\u5907\u652f\u6301\u7684QEMU\u4e2d\u5b58\u5728\u5185\u5b58\u9519\u8bef\u5f15\u7528\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4QEMU\u865a\u62df\u673a\u8fdb\u7a0b\u5d29\u6e83\uff0c\u9020\u6210\u62d2\u7edd\u670d\u52a1\u3002",
  "discovererName": "Li Qiang",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttp://git.qemu.org/?p=qemu.git;a=commit;h=6c352ca9b4ee3e1e286ea9e8434bd8e69ac7d0d8",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2016-06750",
  "openTime": "2016-08-26",
  "patchDescription": "QEMU\u662f\u6cd5\u56fd\u7a0b\u5e8f\u5458\u6cd5\u5e03\u91cc\u65af-\u8d1d\u62c9\uff08Fabrice Bellard\uff09\u6240\u7814\u53d1\u7684\u4e00\u5957\u6a21\u62df\u5904\u7406\u5668\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u5177\u6709\u901f\u5ea6\u5feb\u3001\u8de8\u5e73\u53f0\u7b49\u7279\u70b9\u3002\r\n\r\n\u5efa\u7acb\u4e0eVMWARE VMXNET3 NIC\u8bbe\u5907\u652f\u6301\u7684QEMU\u4e2d\u5b58\u5728\u5185\u5b58\u9519\u8bef\u5f15\u7528\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4QEMU\u865a\u62df\u673a\u8fdb\u7a0b\u5d29\u6e83\uff0c\u9020\u6210\u62d2\u7edd\u670d\u52a1\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "QEMU\u5185\u5b58\u9519\u8bef\u5f15\u7528\u6f0f\u6d1e\uff08CNVD-2016-06750\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "QEMU QEMU"
  },
  "referenceLink": "http://www.openwall.com/lists/oss-security/2016/08/18/3",
  "serverity": "\u4e2d",
  "submitTime": "2016-08-25",
  "title": "QEMU\u5185\u5b58\u9519\u8bef\u5f15\u7528\u6f0f\u6d1e\uff08CNVD-2016-06750\uff09"
}

FKIE_CVE-2016-6833

Vulnerability from fkie_nvd - Published: 2016-12-10 00:59 - Updated: 2026-06-17 00:51

Severity

4.4 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Summary

References

URL	Tags
secalert@redhat.com	http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=6c352ca9b4ee3e1e286ea9e8434bd8e69ac7d0d8
secalert@redhat.com	http://www.openwall.com/lists/oss-security/2016/08/12/1	Mailing List, Third Party Advisory
secalert@redhat.com	http://www.openwall.com/lists/oss-security/2016/08/18/3	Mailing List, Third Party Advisory
secalert@redhat.com	http://www.securityfocus.com/bid/93255	Third Party Advisory, VDB Entry
secalert@redhat.com	https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html	Mailing List, Third Party Advisory
secalert@redhat.com	https://lists.gnu.org/archive/html/qemu-devel/2016-08/msg01602.html	Mailing List, Patch, Third Party Advisory
secalert@redhat.com	https://security.gentoo.org/glsa/201609-01	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=6c352ca9b4ee3e1e286ea9e8434bd8e69ac7d0d8
af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2016/08/12/1	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2016/08/18/3	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	http://www.securityfocus.com/bid/93255	Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://lists.gnu.org/archive/html/qemu-devel/2016-08/msg01602.html	Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://security.gentoo.org/glsa/201609-01	Third Party Advisory

Impacted products

Vendor	Product	Version
qemu	qemu	*
qemu	qemu	2.7.0
qemu	qemu	2.7.0
qemu	qemu	2.7.0
debian	debian_linux	8.0

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "3CF78B06-34D3-4BF8-883B-7B9643BBA7CE",
              "versionEndIncluding": "2.6.2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:qemu:qemu:2.7.0:rc0:*:*:*:*:*:*",
              "matchCriteriaId": "FA78F261-DEB3-46D5-9998-106F6210755E",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:qemu:qemu:2.7.0:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "F121048B-9387-40C6-A919-7F9A4A847EA5",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:qemu:qemu:2.7.0:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "7A102329-A5FB-4B9C-9094-BDA595807A56",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Use-after-free vulnerability in the vmxnet3_io_bar0_write function in hw/net/vmxnet3.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (QEMU instance crash) by leveraging failure to check if the device is active."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de uso despu\u00e9s de liberaci\u00f3n de memoria en la funci\u00f3n vmxnet3_io_bar0_write en hw/net/vmxnet3.c en QEMU (tambi\u00e9n conocido como Quick Emulator) permite a administradores locales del SO invitado provocar una denegaci\u00f3n de servicio (ca\u00edda de la instancia QEMU) aprovechando el fallo para comprobar si el dispositivo est\u00e1 activo."
    }
  ],
  "id": "CVE-2016-6833",
  "lastModified": "2026-06-17T00:51:51.437",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 2.1,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 4.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 0.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2016-12-10T00:59:03.510",
  "references": [
    {
      "source": "secalert@redhat.com",
      "url": "http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=6c352ca9b4ee3e1e286ea9e8434bd8e69ac7d0d8"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2016/08/12/1"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2016/08/18/3"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/93255"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://lists.gnu.org/archive/html/qemu-devel/2016-08/msg01602.html"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.gentoo.org/glsa/201609-01"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=6c352ca9b4ee3e1e286ea9e8434bd8e69ac7d0d8"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2016/08/12/1"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2016/08/18/3"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/93255"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://lists.gnu.org/archive/html/qemu-devel/2016-08/msg01602.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.gentoo.org/glsa/201609-01"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

GHSA-78CX-QVRX-GRFP

Vulnerability from github – Published: 2022-05-13 01:14 – Updated: 2022-05-13 01:14

Details

Severity

4.4 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2016-6833"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2016-12-10T00:59:00Z",
    "severity": "MODERATE"
  },
  "details": "Use-after-free vulnerability in the vmxnet3_io_bar0_write function in hw/net/vmxnet3.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (QEMU instance crash) by leveraging failure to check if the device is active.",
  "id": "GHSA-78cx-qvrx-grfp",
  "modified": "2022-05-13T01:14:33Z",
  "published": "2022-05-13T01:14:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-6833"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.gnu.org/archive/html/qemu-devel/2016-08/msg01602.html"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201609-01"
    },
    {
      "type": "WEB",
      "url": "http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=6c352ca9b4ee3e1e286ea9e8434bd8e69ac7d0d8"
    },
    {
      "type": "WEB",
      "url": "http://git.qemu.org/?p=qemu.git;a=commit;h=6c352ca9b4ee3e1e286ea9e8434bd8e69ac7d0d8"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2016/08/12/1"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2016/08/18/3"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/93255"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GSD-2016-6833

Vulnerability from gsd - Updated: 2023-12-13 01:21

Details

Aliases

CVE-2016-6833

Aliases

CVE-2016-6833

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2016-6833",
    "description": "Use-after-free vulnerability in the vmxnet3_io_bar0_write function in hw/net/vmxnet3.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (QEMU instance crash) by leveraging failure to check if the device is active.",
    "id": "GSD-2016-6833",
    "references": [
      "https://www.suse.com/security/cve/CVE-2016-6833.html",
      "https://ubuntu.com/security/CVE-2016-6833"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2016-6833"
      ],
      "details": "Use-after-free vulnerability in the vmxnet3_io_bar0_write function in hw/net/vmxnet3.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (QEMU instance crash) by leveraging failure to check if the device is active.",
      "id": "GSD-2016-6833",
      "modified": "2023-12-13T01:21:22.915711Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2016-6833",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "n/a"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
      },
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      "data_type": "CVE",
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            "value": "Use-after-free vulnerability in the vmxnet3_io_bar0_write function in hw/net/vmxnet3.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (QEMU instance crash) by leveraging failure to check if the device is active."
          }
        ]
      },
      "problemtype": {
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                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
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            "refsource": "MISC",
            "url": "https://security.gentoo.org/glsa/201609-01"
          },
          {
            "name": "https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html",
            "refsource": "MISC",
            "url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html"
          },
          {
            "name": "http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=6c352ca9b4ee3e1e286ea9e8434bd8e69ac7d0d8",
            "refsource": "MISC",
            "url": "http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=6c352ca9b4ee3e1e286ea9e8434bd8e69ac7d0d8"
          },
          {
            "name": "http://www.openwall.com/lists/oss-security/2016/08/12/1",
            "refsource": "MISC",
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          },
          {
            "name": "http://www.openwall.com/lists/oss-security/2016/08/18/3",
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          },
          {
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          },
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            "url": "https://lists.gnu.org/archive/html/qemu-devel/2016-08/msg01602.html"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:qemu:qemu:2.7.0:rc0:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "2.6.2",
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              },
              {
                "cpe23Uri": "cpe:2.3:a:qemu:qemu:2.7.0:rc1:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:qemu:qemu:2.7.0:rc2:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "secalert@redhat.com",
          "ID": "CVE-2016-6833"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "Use-after-free vulnerability in the vmxnet3_io_bar0_write function in hw/net/vmxnet3.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (QEMU instance crash) by leveraging failure to check if the device is active."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-416"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "93255",
              "refsource": "BID",
              "tags": [
                "Third Party Advisory",
                "VDB Entry"
              ],
              "url": "http://www.securityfocus.com/bid/93255"
            },
            {
              "name": "[oss-security] 20160817 Re: CVE request: Qemu net: vmxnet3: use after free while writing",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "http://www.openwall.com/lists/oss-security/2016/08/18/3"
            },
            {
              "name": "[qemu-devel] 20160809 [PULL 2/3] net: vmxnet3: check for device_active before write",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Patch",
                "Third Party Advisory"
              ],
              "url": "https://lists.gnu.org/archive/html/qemu-devel/2016-08/msg01602.html"
            },
            {
              "name": "[oss-security] 20160812 CVE request: Qemu net: vmxnet3: use after free while writing",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "http://www.openwall.com/lists/oss-security/2016/08/12/1"
            },
            {
              "name": "GLSA-201609-01",
              "refsource": "GENTOO",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://security.gentoo.org/glsa/201609-01"
            },
            {
              "name": "[debian-lts-announce] 20180906 [SECURITY] [DLA 1497-1] qemu security update",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html"
            },
            {
              "name": "http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=6c352ca9b4ee3e1e286ea9e8434bd8e69ac7d0d8",
              "refsource": "MISC",
              "tags": [],
              "url": "http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=6c352ca9b4ee3e1e286ea9e8434bd8e69ac7d0d8"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 2.1,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "LOW",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 4.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 0.8,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2023-02-12T23:25Z",
      "publishedDate": "2016-12-10T00:59Z"
    }
  }
}

SUSE-SU-2016:2473-1

Vulnerability from csaf_suse - Published: 2016-10-07 09:05 - Updated: 2016-10-07 09:05

Summary

Security update for xen

Severity

Important

Scope

10 vulnerabilities in this advisory, including CVE-2016-6833.

CVE-2016-6833

4.4 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Recommended: 19 products

Open the full advisory

SUSE-SU-2016:2507-1

Vulnerability from csaf_suse - Published: 2016-10-12 09:34 - Updated: 2016-10-12 09:34

Summary

Security update for xen

Severity

Important

Scope

10 vulnerabilities in this advisory, including CVE-2016-6833.

CVE-2016-6833

4.4 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Recommended: 24 products

Open the full advisory

SUSE-SU-2016:2533-1

Vulnerability from csaf_suse - Published: 2016-10-13 15:12 - Updated: 2016-10-13 15:12

Summary

Security update for xen

Severity

Important

Scope

38 vulnerabilities in this advisory, including CVE-2016-6833.

CVE-2016-6833

4.4 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Recommended: 14 products

Open the full advisory

SUSE-SU-2016:2589-1

Vulnerability from csaf_suse - Published: 2016-10-21 13:19 - Updated: 2016-10-21 13:19

Summary

Security update for qemu

Severity

Important

Scope

19 vulnerabilities in this advisory, including CVE-2016-6833.

CVE-2016-6833

4.4 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Recommended: 59 products

Open the full advisory

SUSE-SU-2016:2781-1

Vulnerability from csaf_suse - Published: 2016-11-12 03:12 - Updated: 2016-11-12 03:12

Summary

Security update for qemu

Severity

Moderate

Scope

21 vulnerabilities in this advisory, including CVE-2016-6833.

CVE-2016-6833

4.4 (Medium)


                
                  CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Recommended: 37 products

Open the full advisory

ubuntu-cve-2016-6833

Vulnerability from osv_ubuntu

Published

2016-08-18 00:00

Modified

2025-09-08 16:43

Summary

Details

Severity

4.4 (Medium)


                    
                      CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

4.4 (Medium)


                    
                      CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

N/A (UNKNOWN)

low

References

URL

Type

	https://ubuntu.com/security/CVE-2016-6833	REPORT
	http://www.openwall.com/lists/oss-security/2016/08/12/1	REPORT
	https://lists.gnu.org/archive/html/qemu-devel/201…	REPORT
	https://ubuntu.com/security/notices/USN-3125-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2016-6833	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "qemu",
            "binary_version": "2.0.0+dfsg-2ubuntu1.30"
          },
          {
            "binary_name": "qemu-common",
            "binary_version": "2.0.0+dfsg-2ubuntu1.30"
          },
          {
            "binary_name": "qemu-guest-agent",
            "binary_version": "2.0.0+dfsg-2ubuntu1.30"
          },
          {
            "binary_name": "qemu-keymaps",
            "binary_version": "2.0.0+dfsg-2ubuntu1.30"
          },
          {
            "binary_name": "qemu-kvm",
            "binary_version": "2.0.0+dfsg-2ubuntu1.30"
          },
          {
            "binary_name": "qemu-system",
            "binary_version": "2.0.0+dfsg-2ubuntu1.30"
          },
          {
            "binary_name": "qemu-system-aarch64",
            "binary_version": "2.0.0+dfsg-2ubuntu1.30"
          },
          {
            "binary_name": "qemu-system-arm",
            "binary_version": "2.0.0+dfsg-2ubuntu1.30"
          },
          {
            "binary_name": "qemu-system-common",
            "binary_version": "2.0.0+dfsg-2ubuntu1.30"
          },
          {
            "binary_name": "qemu-system-mips",
            "binary_version": "2.0.0+dfsg-2ubuntu1.30"
          },
          {
            "binary_name": "qemu-system-misc",
            "binary_version": "2.0.0+dfsg-2ubuntu1.30"
          },
          {
            "binary_name": "qemu-system-ppc",
            "binary_version": "2.0.0+dfsg-2ubuntu1.30"
          },
          {
            "binary_name": "qemu-system-sparc",
            "binary_version": "2.0.0+dfsg-2ubuntu1.30"
          },
          {
            "binary_name": "qemu-system-x86",
            "binary_version": "2.0.0+dfsg-2ubuntu1.30"
          },
          {
            "binary_name": "qemu-user",
            "binary_version": "2.0.0+dfsg-2ubuntu1.30"
          },
          {
            "binary_name": "qemu-user-static",
            "binary_version": "2.0.0+dfsg-2ubuntu1.30"
          },
          {
            "binary_name": "qemu-utils",
            "binary_version": "2.0.0+dfsg-2ubuntu1.30"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "qemu",
        "purl": "pkg:deb/ubuntu/qemu@2.0.0+dfsg-2ubuntu1.30?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.0.0+dfsg-2ubuntu1.30"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.5.0+dfsg-3ubuntu5",
        "1.5.0+dfsg-3ubuntu6",
        "1.6.0+dfsg-2ubuntu1",
        "1.6.0+dfsg-2ubuntu2",
        "1.6.0+dfsg-2ubuntu3",
        "1.6.0+dfsg-2ubuntu4",
        "1.7.0+dfsg-2ubuntu1",
        "1.7.0+dfsg-2ubuntu2",
        "1.7.0+dfsg-2ubuntu3",
        "1.7.0+dfsg-2ubuntu4",
        "1.7.0+dfsg-2ubuntu5",
        "1.7.0+dfsg-2ubuntu7",
        "1.7.0+dfsg-2ubuntu8",
        "1.7.0+dfsg-2ubuntu9",
        "1.7.0+dfsg-3ubuntu1~ppa1",
        "1.7.0+dfsg-3ubuntu1",
        "1.7.0+dfsg-3ubuntu2",
        "1.7.0+dfsg-3ubuntu3",
        "1.7.0+dfsg-3ubuntu4",
        "1.7.0+dfsg-3ubuntu5",
        "1.7.0+dfsg-3ubuntu6",
        "1.7.0+dfsg-3ubuntu7",
        "2.0.0~rc1+dfsg-0ubuntu1",
        "2.0.0~rc1+dfsg-0ubuntu2",
        "2.0.0~rc1+dfsg-0ubuntu3",
        "2.0.0~rc1+dfsg-0ubuntu3.1",
        "2.0.0+dfsg-2ubuntu1",
        "2.0.0+dfsg-2ubuntu1.1",
        "2.0.0+dfsg-2ubuntu1.2",
        "2.0.0+dfsg-2ubuntu1.3",
        "2.0.0+dfsg-2ubuntu1.5",
        "2.0.0+dfsg-2ubuntu1.6",
        "2.0.0+dfsg-2ubuntu1.7",
        "2.0.0+dfsg-2ubuntu1.8",
        "2.0.0+dfsg-2ubuntu1.9",
        "2.0.0+dfsg-2ubuntu1.10",
        "2.0.0+dfsg-2ubuntu1.11",
        "2.0.0+dfsg-2ubuntu1.13",
        "2.0.0+dfsg-2ubuntu1.14",
        "2.0.0+dfsg-2ubuntu1.15",
        "2.0.0+dfsg-2ubuntu1.16",
        "2.0.0+dfsg-2ubuntu1.17",
        "2.0.0+dfsg-2ubuntu1.18",
        "2.0.0+dfsg-2ubuntu1.19",
        "2.0.0+dfsg-2ubuntu1.20",
        "2.0.0+dfsg-2ubuntu1.21",
        "2.0.0+dfsg-2ubuntu1.22",
        "2.0.0+dfsg-2ubuntu1.24",
        "2.0.0+dfsg-2ubuntu1.25",
        "2.0.0+dfsg-2ubuntu1.26",
        "2.0.0+dfsg-2ubuntu1.27",
        "2.0.0+dfsg-2ubuntu1.28",
        "2.0.0+dfsg-2ubuntu1.29"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "qemu",
            "binary_version": "1:2.5+dfsg-5ubuntu10.6"
          },
          {
            "binary_name": "qemu-block-extra",
            "binary_version": "1:2.5+dfsg-5ubuntu10.6"
          },
          {
            "binary_name": "qemu-guest-agent",
            "binary_version": "1:2.5+dfsg-5ubuntu10.6"
          },
          {
            "binary_name": "qemu-kvm",
            "binary_version": "1:2.5+dfsg-5ubuntu10.6"
          },
          {
            "binary_name": "qemu-system",
            "binary_version": "1:2.5+dfsg-5ubuntu10.6"
          },
          {
            "binary_name": "qemu-system-aarch64",
            "binary_version": "1:2.5+dfsg-5ubuntu10.6"
          },
          {
            "binary_name": "qemu-system-arm",
            "binary_version": "1:2.5+dfsg-5ubuntu10.6"
          },
          {
            "binary_name": "qemu-system-common",
            "binary_version": "1:2.5+dfsg-5ubuntu10.6"
          },
          {
            "binary_name": "qemu-system-mips",
            "binary_version": "1:2.5+dfsg-5ubuntu10.6"
          },
          {
            "binary_name": "qemu-system-misc",
            "binary_version": "1:2.5+dfsg-5ubuntu10.6"
          },
          {
            "binary_name": "qemu-system-ppc",
            "binary_version": "1:2.5+dfsg-5ubuntu10.6"
          },
          {
            "binary_name": "qemu-system-s390x",
            "binary_version": "1:2.5+dfsg-5ubuntu10.6"
          },
          {
            "binary_name": "qemu-system-sparc",
            "binary_version": "1:2.5+dfsg-5ubuntu10.6"
          },
          {
            "binary_name": "qemu-system-x86",
            "binary_version": "1:2.5+dfsg-5ubuntu10.6"
          },
          {
            "binary_name": "qemu-user",
            "binary_version": "1:2.5+dfsg-5ubuntu10.6"
          },
          {
            "binary_name": "qemu-user-binfmt",
            "binary_version": "1:2.5+dfsg-5ubuntu10.6"
          },
          {
            "binary_name": "qemu-user-static",
            "binary_version": "1:2.5+dfsg-5ubuntu10.6"
          },
          {
            "binary_name": "qemu-utils",
            "binary_version": "1:2.5+dfsg-5ubuntu10.6"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "qemu",
        "purl": "pkg:deb/ubuntu/qemu@1:2.5+dfsg-5ubuntu10.6?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:2.5+dfsg-5ubuntu10.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:2.3+dfsg-5ubuntu9",
        "1:2.3+dfsg-5ubuntu10",
        "1:2.4+dfsg-4ubuntu1",
        "1:2.4+dfsg-4ubuntu2",
        "1:2.4+dfsg-4ubuntu3",
        "1:2.4+dfsg-5ubuntu3",
        "1:2.5+dfsg-1ubuntu2",
        "1:2.5+dfsg-1ubuntu3",
        "1:2.5+dfsg-1ubuntu4",
        "1:2.5+dfsg-1ubuntu5",
        "1:2.5+dfsg-5ubuntu1",
        "1:2.5+dfsg-5ubuntu2",
        "1:2.5+dfsg-5ubuntu4",
        "1:2.5+dfsg-5ubuntu6",
        "1:2.5+dfsg-5ubuntu7",
        "1:2.5+dfsg-5ubuntu10",
        "1:2.5+dfsg-5ubuntu10.1",
        "1:2.5+dfsg-5ubuntu10.2",
        "1:2.5+dfsg-5ubuntu10.3",
        "1:2.5+dfsg-5ubuntu10.4",
        "1:2.5+dfsg-5ubuntu10.5"
      ]
    }
  ],
  "aliases": [],
  "details": "Use-after-free vulnerability in the vmxnet3_io_bar0_write function in hw/net/vmxnet3.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (QEMU instance crash) by leveraging failure to check if the device is active.",
  "id": "UBUNTU-CVE-2016-6833",
  "modified": "2025-09-08T16:43:50Z",
  "published": "2016-08-18T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-6833"
    },
    {
      "type": "REPORT",
      "url": "http://www.openwall.com/lists/oss-security/2016/08/12/1"
    },
    {
      "type": "REPORT",
      "url": "https://lists.gnu.org/archive/html/qemu-devel/2016-08/msg01602.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3125-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2016-6833"
    }
  ],
  "related": [
    "USN-3125-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2016-6833"
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2016-6833 (GCVE-0-2016-6833)

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature

Related by attack behaviour