cnvd - cnvd-2017-06741

cnvd-2017-06741

Vulnerability from cnvd

Title: Linux kernel拒绝服务漏洞（CNVD-2017-06741）

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内核3.12至3.15中的arch/x86/kvm/vmx.c中的handle_invept函数存在拒绝服务漏洞，允许特权的KVM客户机操作系统的用户通过单一上下文INVEPT指令导致拒绝服务（NULL指针取消引用和主机操作系统崩溃）NULL EPT指针。

Severity: 中

Patch Name: Linux kernel拒绝服务漏洞（CNVD-2017-06741）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。

Linux内核3.12至3.15中的arch/x86/kvm/vmx.c中的handle_invept函数存在拒绝服务漏洞，允许特权的KVM客户机操作系统的用户通过单一上下文INVEPT指令导致拒绝服务（NULL指针取消引用和主机操作系统崩溃）NULL EPT指针。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： https://bugzilla.kernel.org/show_bug.cgi?id=195167

Reference: https://launchpad.net/bugs/1678676

Impacted products

Name
Linux kernel 3.12-3.15

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-8106",
      "cveUrl": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8106"
    }
  },
  "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\u5185\u68383.12\u81f33.15\u4e2d\u7684arch/x86/kvm/vmx.c\u4e2d\u7684handle_invept\u51fd\u6570\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u5141\u8bb8\u7279\u6743\u7684KVM\u5ba2\u6237\u673a\u64cd\u4f5c\u7cfb\u7edf\u7684\u7528\u6237\u901a\u8fc7\u5355\u4e00\u4e0a\u4e0b\u6587INVEPT\u6307\u4ee4\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\uff08NULL\u6307\u9488\u53d6\u6d88\u5f15\u7528\u548c\u4e3b\u673a\u64cd\u4f5c\u7cfb\u7edf\u5d29\u6e83\uff09NULL EPT\u6307\u9488\u3002",
  "discovererName": "minoura makoto",
  "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\nhttps://bugzilla.kernel.org/show_bug.cgi?id=195167",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-06741",
  "openTime": "2017-05-17",
  "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\u5185\u68383.12\u81f33.15\u4e2d\u7684arch/x86/kvm/vmx.c\u4e2d\u7684handle_invept\u51fd\u6570\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u5141\u8bb8\u7279\u6743\u7684KVM\u5ba2\u6237\u673a\u64cd\u4f5c\u7cfb\u7edf\u7684\u7528\u6237\u901a\u8fc7\u5355\u4e00\u4e0a\u4e0b\u6587INVEPT\u6307\u4ee4\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\uff08NULL\u6307\u9488\u53d6\u6d88\u5f15\u7528\u548c\u4e3b\u673a\u64cd\u4f5c\u7cfb\u7edf\u5d29\u6e83\uff09NULL EPT\u6307\u9488\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\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2017-06741\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Linux kernel 3.12-3.15"
  },
  "referenceLink": "https://launchpad.net/bugs/1678676",
  "serverity": "\u4e2d",
  "submitTime": "2017-04-26",
  "title": "Linux kernel\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2017-06741\uff09"
}

CVE-2017-8106 (GCVE-0-2017-8106)

Vulnerability from cvelistv5

Published

2017-04-24 23:00

Modified

2024-09-16 23:41

Severity ?

CWE

Summary

The handle_invept function in arch/x86/kvm/vmx.c in the Linux kernel 3.12 through 3.15 allows privileged KVM guest OS users to cause a denial of service (NULL pointer dereference and host OS crash) via a single-context INVEPT instruction with a NULL EPT pointer.

References

▼	URL	Tags
	https://bugzilla.kernel.org/show_bug.cgi?id=195167	x_refsource_MISC
	https://launchpad.net/bugs/1678676	x_refsource_MISC

Impacted products

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

Show details on NVD website

JSON

To clipboard

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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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