cnvd - cnvd-2016-03352

cnvd-2016-03352

Vulnerability from cnvd

Title: Linux kernel信息泄露漏洞（CNVD-2016-03352）

Description:

Linux kernel是美国Linux基金会发布的操作系统Linux所使用的内核。

Linux kernel的Kernel-based Virtual Machine(KVM)实现过程中存在安全漏洞，该漏洞源于程序未能限制KVM虚拟机内可变的Memory Type Range Registers(MTRR)。攻击者可利用该漏洞以提升的权限造成拒绝服务（主机系统崩溃），泄露敏感信息，或获取主机的管理员权限。

Severity: 高

Patch Name: Linux kernel信息泄露漏洞（CNVD-2016-03352）的补丁

Patch Description:

Linux kernel是美国Linux基金会发布的操作系统Linux所使用的内核。

Formal description:

目前厂商已经发布了升级补丁以修复此安全问题，详情请关注厂商主页： https://www.kernel.org/

Reference: http://www.openwall.com/lists/oss-security/2016/05/16/2

Impacted products

Name
Linux Kernel

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2016-3713"
    }
  },
  "description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel\u7684Kernel-based Virtual Machine(KVM)\u5b9e\u73b0\u8fc7\u7a0b\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u9650\u5236KVM\u865a\u62df\u673a\u5185\u53ef\u53d8\u7684Memory Type Range Registers(MTRR)\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u4ee5\u63d0\u5347\u7684\u6743\u9650\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u4e3b\u673a\u7cfb\u7edf\u5d29\u6e83\uff09\uff0c\u6cc4\u9732\u654f\u611f\u4fe1\u606f\uff0c\u6216\u83b7\u53d6\u4e3b\u673a\u7684\u7ba1\u7406\u5458\u6743\u9650\u3002",
  "discovererName": "P J P",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u8be6\u60c5\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\uff1a\r\nhttps://www.kernel.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2016-03352",
  "openTime": "2016-05-19",
  "patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel\u7684Kernel-based Virtual Machine(KVM)\u5b9e\u73b0\u8fc7\u7a0b\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u9650\u5236KVM\u865a\u62df\u673a\u5185\u53ef\u53d8\u7684Memory Type Range Registers(MTRR)\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u4ee5\u63d0\u5347\u7684\u6743\u9650\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u4e3b\u673a\u7cfb\u7edf\u5d29\u6e83\uff09\uff0c\u6cc4\u9732\u654f\u611f\u4fe1\u606f\uff0c\u6216\u83b7\u53d6\u4e3b\u673a\u7684\u7ba1\u7406\u5458\u6743\u9650\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": "Linux kernel\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff08CNVD-2016-03352\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Kernel"
  },
  "referenceLink": "http://www.openwall.com/lists/oss-security/2016/05/16/2",
  "serverity": "\u9ad8",
  "submitTime": "2016-05-17",
  "title": "Linux kernel\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff08CNVD-2016-03352\uff09"
}

CVE-2016-3713 (GCVE-0-2016-3713)

Vulnerability from cvelistv5

Published

2016-06-27 10:00

Modified

2024-08-06 00:03

Severity ?

CWE

Summary

The msr_mtrr_valid function in arch/x86/kvm/mtrr.c in the Linux kernel before 4.6.1 supports MSR 0x2f8, which allows guest OS users to read or write to the kvm_arch_vcpu data structure, and consequently obtain sensitive information or cause a denial of service (system crash), via a crafted ioctl call.

References

▼	URL	Tags
	http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.1	x_refsource_CONFIRM
	https://github.com/torvalds/linux/commit/9842df62004f366b9fed2423e24df10542ee0dc5	x_refsource_CONFIRM
	http://www.openwall.com/lists/oss-security/2016/05/16/2	mailing-list, x_refsource_MLIST
	http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9842df62004f366b9fed2423e24df10542ee0dc5	x_refsource_CONFIRM
	https://bugzilla.redhat.com/show_bug.cgi?id=1332139	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T00:03:34.494Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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        "references": [
          {
            "tags": [
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              "x_transferred"
            ],
            "url": "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.1"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/torvalds/linux/commit/9842df62004f366b9fed2423e24df10542ee0dc5"
          },
          {
            "name": "[oss-security] 20160516 CVE-2016-3713 Linux kernel: kvm: OOB r/w access issue with MSR 0x2F8",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
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            ],
            "url": "http://www.openwall.com/lists/oss-security/2016/05/16/2"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
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            "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9842df62004f366b9fed2423e24df10542ee0dc5"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1332139"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2016-05-16T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "The msr_mtrr_valid function in arch/x86/kvm/mtrr.c in the Linux kernel before 4.6.1 supports MSR 0x2f8, which allows guest OS users to read or write to the kvm_arch_vcpu data structure, and consequently obtain sensitive information or cause a denial of service (system crash), via a crafted ioctl call."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2016-06-27T02:57:01",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
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          "url": "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.1"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/torvalds/linux/commit/9842df62004f366b9fed2423e24df10542ee0dc5"
        },
        {
          "name": "[oss-security] 20160516 CVE-2016-3713 Linux kernel: kvm: OOB r/w access issue with MSR 0x2F8",
          "tags": [
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            "x_refsource_MLIST"
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          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1332139"
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  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
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    "datePublished": "2016-06-27T10:00:00",
    "dateReserved": "2016-03-30T00:00:00",
    "dateUpdated": "2024-08-06T00:03:34.494Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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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