Vulnerability-Lookup

CNVD-2016-00823

Vulnerability from cnvd - Published: 2016-02-04

Title

QEMU 'i386/kvmvapic.c' NULL空指针引用拒绝服务漏洞

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。 QEMU存在拒绝服务漏洞。攻击者可利用该漏洞使QEMU进程崩溃，造成拒绝服务。

Severity

中

Patch Name

QEMU 'i386/kvmvapic.c' NULL空指针引用拒绝服务漏洞的补丁

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。 QEMU存在拒绝服务漏洞。攻击者可利用该漏洞使QEMU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

用户可联系供应商获得补丁信息： http://wiki.qemu.org/

Reference

http://www.securityfocus.com/bid/81058

Impacted products

Name
QEMU QEMU 0

Show details on source website

JSON

To clipboard

{
  "bids": {
    "bid": {
      "bidNumber": "81058"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2016-1922"
    }
  },
  "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\nQEMU\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u4f7fQEMU\u8fdb\u7a0b\u5d29\u6e83\uff0c\u9020\u6210\u62d2\u7edd\u670d\u52a1\u3002",
  "discovererName": "Ling Liu of Qihoo 360",
  "formalWay": "\u7528\u6237\u53ef\u8054\u7cfb\u4f9b\u5e94\u5546\u83b7\u5f97\u8865\u4e01\u4fe1\u606f\uff1a\r\nhttp://wiki.qemu.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2016-00823",
  "openTime": "2016-02-04",
  "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\nQEMU\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u4f7fQEMU\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 \u0027i386/kvmvapic.c\u0027 NULL\u7a7a\u6307\u9488\u5f15\u7528\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "QEMU QEMU 0"
  },
  "referenceLink": "http://www.securityfocus.com/bid/81058",
  "serverity": "\u4e2d",
  "submitTime": "2016-02-04",
  "title": "QEMU \u0027i386/kvmvapic.c\u0027 NULL\u7a7a\u6307\u9488\u5f15\u7528\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2016-1922 (GCVE-0-2016-1922)

Vulnerability from cvelistv5 – Published: 2016-12-29 22:00 – Updated: 2024-08-05 23:10

Summary

QEMU (aka Quick Emulator) built with the TPR optimization for 32-bit Windows guests support is vulnerable to a null pointer dereference flaw. It occurs while doing I/O port write operations via hmp interface. In that, 'current_cpu' remains null, which leads to the null pointer dereference. A user or process could use this flaw to crash the QEMU instance, resulting in DoS issue.

Severity

No CVSS data available.

CWE

Assigner

redhat redhat root

References

9 references

URL	Tags
http://www.openwall.com/lists/oss-security/2016/01/16/1	mailing-listx_refsource_MLIST
https://security.gentoo.org/glsa/201604-01	vendor-advisoryx_refsource_GENTOO
http://www.openwall.com/lists/oss-security/2016/01/16/6	mailing-listx_refsource_MLIST
http://www.debian.org/security/2016/dsa-3469	vendor-advisoryx_refsource_DEBIAN
http://www.debian.org/security/2016/dsa-3470	vendor-advisoryx_refsource_DEBIAN
http://www.debian.org/security/2016/dsa-3471	vendor-advisoryx_refsource_DEBIAN
https://lists.gnu.org/archive/html/qemu-devel/201…	mailing-listx_refsource_MLIST
http://www.securityfocus.com/bid/81058	vdb-entryx_refsource_BID
https://bugzilla.redhat.com/show_bug.cgi?id=1283934	x_refsource_CONFIRM

Date Public

2016-01-15 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T23:10:40.299Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "[oss-security] 20160116 CVE request Qemu: i386: null pointer dereference in vapic_write",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2016/01/16/1"
          },
          {
            "name": "GLSA-201604-01",
            "tags": [
              "vendor-advisory",
              "x_refsource_GENTOO",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/201604-01"
          },
          {
            "name": "[oss-security] 20160116 Re: CVE request Qemu: i386: null pointer dereference in vapic_write",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://www.openwall.com/lists/oss-security/2016/01/16/6"
          },
          {
            "name": "DSA-3469",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "http://www.debian.org/security/2016/dsa-3469"
          },
          {
            "name": "DSA-3470",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "http://www.debian.org/security/2016/dsa-3470"
          },
          {
            "name": "DSA-3471",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "http://www.debian.org/security/2016/dsa-3471"
          },
          {
            "name": "[qemu-devel] 20160115 [PULL] i386: avoid null pointer dereference",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg02812.html"
          },
          {
            "name": "81058",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/81058"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1283934"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2016-01-15T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "QEMU (aka Quick Emulator) built with the TPR optimization for 32-bit Windows guests support is vulnerable to a null pointer dereference flaw. It occurs while doing I/O port write operations via hmp interface. In that, \u0027current_cpu\u0027 remains null, which leads to the null pointer dereference. A user or process could use this flaw to crash the QEMU instance, resulting in DoS issue."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2017-11-03T18:57:01.000Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "name": "[oss-security] 20160116 CVE request Qemu: i386: null pointer dereference in vapic_write",
          "tags": [
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            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2016/01/16/1"
        },
        {
          "name": "GLSA-201604-01",
          "tags": [
            "vendor-advisory",
            "x_refsource_GENTOO"
          ],
          "url": "https://security.gentoo.org/glsa/201604-01"
        },
        {
          "name": "[oss-security] 20160116 Re: CVE request Qemu: i386: null pointer dereference in vapic_write",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2016/01/16/6"
        },
        {
          "name": "DSA-3469",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "http://www.debian.org/security/2016/dsa-3469"
        },
        {
          "name": "DSA-3470",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "http://www.debian.org/security/2016/dsa-3470"
        },
        {
          "name": "DSA-3471",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "http://www.debian.org/security/2016/dsa-3471"
        },
        {
          "name": "[qemu-devel] 20160115 [PULL] i386: avoid null pointer dereference",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg02812.html"
        },
        {
          "name": "81058",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/81058"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1283934"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2016-1922",
    "datePublished": "2016-12-29T22:00:00.000Z",
    "dateReserved": "2016-01-16T00:00:00.000Z",
    "dateUpdated": "2024-08-05T23:10:40.299Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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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.
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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.

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.
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Action not permitted

CNVD-2016-00823

CVE-2016-1922 (GCVE-0-2016-1922)

Tags

Sightings

Nomenclature

Related by attack behaviour