cnvd - cnvd-2015-03875

cnvd-2015-03875

Vulnerability from cnvd

Title: Xen compat_iret()拒绝服务漏洞

Description:

Xen是一款用于Linux内核的一种虚拟化技术,允许同时运行多个操作系统。

Xen存在安全漏洞，允许32-bit PV GUEST系统上的本地用户调用compat_iret()函数触发大量页错误，使HOST系统挂起。

Severity: 中

Patch Name: Xen compat_iret()拒绝服务漏洞的补丁

Patch Description:

Xen是一款用于Linux内核的一种虚拟化技术,允许同时运行多个操作系统。

Xen存在安全漏洞，允许32-bit PV GUEST系统上的本地用户调用compat_iret()函数触发大量页错误，使HOST系统挂起。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://xenbits.xen.org/xsa/advisory-136.html

Reference: http://xenbits.xen.org/xsa/advisory-136.html https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-4164

Impacted products

Name
Xen Xen 3.1 - 4.5

Show details on source website

JSON

To clipboard

{
  "bids": {
    "bid": {
      "bidNumber": "75149"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-4164"
    }
  },
  "description": "Xen\u662f\u4e00\u6b3e\u7528\u4e8eLinux\u5185\u6838\u7684\u4e00\u79cd\u865a\u62df\u5316\u6280\u672f,\u5141\u8bb8\u540c\u65f6\u8fd0\u884c\u591a\u4e2a\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nXen\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u5141\u8bb832-bit PV GUEST\u7cfb\u7edf\u4e0a\u7684\u672c\u5730\u7528\u6237\u8c03\u7528compat_iret()\u51fd\u6570\u89e6\u53d1\u5927\u91cf\u9875\u9519\u8bef\uff0c\u4f7fHOST\u7cfb\u7edf\u6302\u8d77\u3002",
  "discovererName": "Andrew Cooper of Citrix",
  "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://xenbits.xen.org/xsa/advisory-136.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-03875",
  "openTime": "2015-06-19",
  "patchDescription": "Xen\u662f\u4e00\u6b3e\u7528\u4e8eLinux\u5185\u6838\u7684\u4e00\u79cd\u865a\u62df\u5316\u6280\u672f,\u5141\u8bb8\u540c\u65f6\u8fd0\u884c\u591a\u4e2a\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nXen\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u5141\u8bb832-bit PV GUEST\u7cfb\u7edf\u4e0a\u7684\u672c\u5730\u7528\u6237\u8c03\u7528compat_iret()\u51fd\u6570\u89e6\u53d1\u5927\u91cf\u9875\u9519\u8bef\uff0c\u4f7fHOST\u7cfb\u7edf\u6302\u8d77\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": "Xen compat_iret()\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Xen Xen 3.1 - 4.5"
  },
  "referenceLink": "http://xenbits.xen.org/xsa/advisory-136.html\r\nhttps://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-4164",
  "serverity": "\u4e2d",
  "submitTime": "2015-06-17",
  "title": "Xen compat_iret()\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2015-4164 (GCVE-0-2015-4164)

Vulnerability from cvelistv5

Published

2015-06-15 15:00

Modified

2024-08-06 06:04

Severity ?

CWE

Summary

The compat_iret function in Xen 3.1 through 4.5 iterates the wrong way through a loop, which allows local 32-bit PV guest administrators to cause a denial of service (large loop and system hang) via a hypercall_iret call with EFLAGS.VM set.

References

▼	URL	Tags
	http://www.securityfocus.com/bid/75149	vdb-entry, x_refsource_BID
	http://www.debian.org/security/2015/dsa-3286	vendor-advisory, x_refsource_DEBIAN
	http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00029.html	vendor-advisory, x_refsource_SUSE
	http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00027.html	vendor-advisory, x_refsource_SUSE
	http://www.securitytracker.com/id/1032569	vdb-entry, x_refsource_SECTRACK
	http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00014.html	vendor-advisory, x_refsource_SUSE
	http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00030.html	vendor-advisory, x_refsource_SUSE
	http://support.citrix.com/article/CTX201145	x_refsource_CONFIRM
	http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00007.html	vendor-advisory, x_refsource_SUSE
	http://xenbits.xen.org/xsa/advisory-136.html	x_refsource_CONFIRM
	https://security.gentoo.org/glsa/201604-03	vendor-advisory, x_refsource_GENTOO
	http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00004.html	vendor-advisory, x_refsource_SUSE

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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