cnvd - cnvd-2015-04952

cnvd-2015-04952

Vulnerability from cnvd

Title: Linux kvm_apic_has_events()函数空指针引用漏洞

Description:

Linux Kernel是一款开源的操作系统。

Linux Kernel kvm_apic_has_events()函数存在空指针引用漏洞，允许可访问/dev/kvm的用户使系统崩溃。

Severity: 中

Patch Name: Linux kvm_apic_has_events()函数空指针引用漏洞的补丁

Patch Description:

Linux Kernel是一款开源的操作系统。Linux Kernel kvm_apic_has_events()函数存在空指针引用漏洞，允许可访问/dev/kvm的用户使系统崩溃。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:

用户可参考如下厂商提供的安全公告获取补丁以修复该漏洞： http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/arch/x86/kvm/lapic.h?id=ce40cd3fc7fa40a6119e5fe6c0f2bc0eb4541009

Reference: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/arch/x86/kvm/lapic.h?id=ce40cd3fc7fa40a6119e5fe6c0f2bc0eb4541009

Impacted products

Name
Linux Kernel

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-4692"
    }
  },
  "description": "Linux Kernel\u662f\u4e00\u6b3e\u5f00\u6e90\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nLinux Kernel kvm_apic_has_events()\u51fd\u6570\u5b58\u5728\u7a7a\u6307\u9488\u5f15\u7528\u6f0f\u6d1e\uff0c\u5141\u8bb8\u53ef\u8bbf\u95ee/dev/kvm\u7684\u7528\u6237\u4f7f\u7cfb\u7edf\u5d29\u6e83\u3002",
  "discovererName": "Linux",
  "formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u5382\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u516c\u544a\u83b7\u53d6\u8865\u4e01\u4ee5\u4fee\u590d\u8be5\u6f0f\u6d1e\uff1a\r\nhttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/arch/x86/kvm/lapic.h?id=ce40cd3fc7fa40a6119e5fe6c0f2bc0eb4541009",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-04952",
  "openTime": "2015-07-21",
  "patchDescription": "Linux Kernel\u662f\u4e00\u6b3e\u5f00\u6e90\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002Linux Kernel kvm_apic_has_events()\u51fd\u6570\u5b58\u5728\u7a7a\u6307\u9488\u5f15\u7528\u6f0f\u6d1e\uff0c\u5141\u8bb8\u53ef\u8bbf\u95ee/dev/kvm\u7684\u7528\u6237\u4f7f\u7cfb\u7edf\u5d29\u6e83\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 kvm_apic_has_events()\u51fd\u6570\u7a7a\u6307\u9488\u5f15\u7528\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
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  "serverity": "\u4e2d",
  "submitTime": "2015-07-18",
  "title": "Linux kvm_apic_has_events()\u51fd\u6570\u7a7a\u6307\u9488\u5f15\u7528\u6f0f\u6d1e"
}

CVE-2015-4692 (GCVE-0-2015-4692)

Vulnerability from cvelistv5

Published

2015-07-27 10:00

Modified

2024-08-06 06:18

Severity ?

CWE

Summary

The kvm_apic_has_events function in arch/x86/kvm/lapic.h in the Linux kernel through 4.1.3 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by leveraging /dev/kvm access for an ioctl call.

References

▼	URL	Tags
	http://www.openwall.com/lists/oss-security/2015/06/21/1	mailing-list, x_refsource_MLIST
	http://www.ubuntu.com/usn/USN-2680-1	vendor-advisory, x_refsource_UBUNTU
	http://www.ubuntu.com/usn/USN-2682-1	vendor-advisory, x_refsource_UBUNTU
	https://bugzilla.redhat.com/show_bug.cgi?id=1230770	x_refsource_CONFIRM
	https://github.com/torvalds/linux/commit/ce40cd3fc7fa40a6119e5fe6c0f2bc0eb4541009	x_refsource_CONFIRM
	http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00049.html	vendor-advisory, x_refsource_SUSE
	http://www.debian.org/security/2015/dsa-3329	vendor-advisory, x_refsource_DEBIAN
	http://lists.fedoraproject.org/pipermail/package-announce/2015-June/161144.html	vendor-advisory, x_refsource_FEDORA
	http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00011.html	vendor-advisory, x_refsource_SUSE
	http://www.ubuntu.com/usn/USN-2684-1	vendor-advisory, x_refsource_UBUNTU
	http://www.ubuntu.com/usn/USN-2681-1	vendor-advisory, x_refsource_UBUNTU
	http://www.ubuntu.com/usn/USN-2683-1	vendor-advisory, x_refsource_UBUNTU
	http://www.securityfocus.com/bid/75142	vdb-entry, x_refsource_BID
	http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ce40cd3fc7fa40a6119e5fe6c0f2bc0eb4541009	x_refsource_CONFIRM
	http://www.securitytracker.com/id/1032798	vdb-entry, x_refsource_SECTRACK
	http://lists.fedoraproject.org/pipermail/package-announce/2015-June/160829.html	vendor-advisory, x_refsource_FEDORA

Impacted products

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

Show details on NVD website

JSON

To clipboard

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    "datePublished": "2015-07-27T10:00:00",
    "dateReserved": "2015-06-19T00:00:00",
    "dateUpdated": "2024-08-06T06:18:12.182Z",
    "state": "PUBLISHED"
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  "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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