cnvd-2018-15165
Vulnerability from cnvd
Title
Xen本地安全绕过漏洞(CNVD-2018-15165)
Description
Xen是一个开放源代码虚拟机监视器,由剑桥大学开发。它打算在单个计算机上运行多达102个满特征的操作系统。
Xen 4.7版本至4.10.x版本中存在本地安全绕过漏洞,该漏洞源于程序未能将只读旗标发送到qemu。当系统使用libxl或libxl-based工具栈时,攻击者可利用该漏洞绕过安全限制,执行未授权的操作。
Severity
中
VLAI Severity ?
Patch Name
Xen本地安全绕过漏洞(CNVD-2018-15165)的补丁
Patch Description
Xen是一个开放源代码虚拟机监视器,由剑桥大学开发。它打算在单个计算机上运行多达102个满特征的操作系统。
Xen 4.7版本至4.10.x版本中存在本地安全绕过漏洞,该漏洞源于程序未能将只读旗标发送到qemu。当系统使用libxl或libxl-based工具栈时,攻击者可利用该漏洞绕过安全限制,执行未授权的操作。 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
厂商已发布了漏洞修复程序,请及时关注更新: http://xenbits.xen.org/xsa/advisory-266.html
Reference
https://securitytracker.com/id/1041203
https://nvd.nist.gov/vuln/detail/CVE-2018-12892
Impacted products
| Name | Xen Xen >=4.7 |
|---|
{
"cves": {
"cve": {
"cveNumber": "CVE-2018-12892"
}
},
"description": "Xen\u662f\u4e00\u4e2a\u5f00\u653e\u6e90\u4ee3\u7801\u865a\u62df\u673a\u76d1\u89c6\u5668\uff0c\u7531\u5251\u6865\u5927\u5b66\u5f00\u53d1\u3002\u5b83\u6253\u7b97\u5728\u5355\u4e2a\u8ba1\u7b97\u673a\u4e0a\u8fd0\u884c\u591a\u8fbe102\u4e2a\u6ee1\u7279\u5f81\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nXen 4.7\u7248\u672c\u81f34.10.x\u7248\u672c\u4e2d\u5b58\u5728\u672c\u5730\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u5c06\u53ea\u8bfb\u65d7\u6807\u53d1\u9001\u5230qemu\u3002\u5f53\u7cfb\u7edf\u4f7f\u7528libxl\u6216libxl-based\u5de5\u5177\u6808\u65f6\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u5b89\u5168\u9650\u5236\uff0c\u6267\u884c\u672a\u6388\u6743\u7684\u64cd\u4f5c\u3002",
"discovererName": "Andrew Reimers of OrionVM",
"formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttp://xenbits.xen.org/xsa/advisory-266.html",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2018-15165",
"openTime": "2018-08-14",
"patchDescription": "Xen\u662f\u4e00\u4e2a\u5f00\u653e\u6e90\u4ee3\u7801\u865a\u62df\u673a\u76d1\u89c6\u5668\uff0c\u7531\u5251\u6865\u5927\u5b66\u5f00\u53d1\u3002\u5b83\u6253\u7b97\u5728\u5355\u4e2a\u8ba1\u7b97\u673a\u4e0a\u8fd0\u884c\u591a\u8fbe102\u4e2a\u6ee1\u7279\u5f81\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nXen 4.7\u7248\u672c\u81f34.10.x\u7248\u672c\u4e2d\u5b58\u5728\u672c\u5730\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u5c06\u53ea\u8bfb\u65d7\u6807\u53d1\u9001\u5230qemu\u3002\u5f53\u7cfb\u7edf\u4f7f\u7528libxl\u6216libxl-based\u5de5\u5177\u6808\u65f6\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u5b89\u5168\u9650\u5236\uff0c\u6267\u884c\u672a\u6388\u6743\u7684\u64cd\u4f5c\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\u672c\u5730\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e\uff08CNVD-2018-15165\uff09\u7684\u8865\u4e01",
"products": {
"product": "Xen Xen \u003e=4.7"
},
"referenceLink": "https://securitytracker.com/id/1041203\r\nhttps://nvd.nist.gov/vuln/detail/CVE-2018-12892",
"serverity": "\u4e2d",
"submitTime": "2018-06-29",
"title": "Xen\u672c\u5730\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e\uff08CNVD-2018-15165\uff09"
}
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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.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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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