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CVE-2016-4963

Quick assessment

Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Xen是英国剑桥大学开发的一款开源的虚拟机监视器产品。该产品能够使不同和不兼容的操作系统运行在同一台计算机上，并支持在运行时进行迁移，保证正常运行并且避免宕机。 Xen 4.6.x及之前版本的libxl device-handling中存在安全漏洞。本地虚拟机端攻击者可通过操作xenstore的后台目录中的信息利用该漏洞以设备域访问权限造成拒绝服务（管理工具混淆）。

AI Predicted 4.3 Difficulty: Easy EPSS 0.30% · P21

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2016-4963

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The libxl device-handling in Xen through 4.6.x allows local guest OS users with access to the driver domain to cause a denial of service (management tool confusion) by manipulating information in the backend directories in xenstore.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Xen 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Xen是英国剑桥大学开发的一款开源的虚拟机监视器产品。该产品能够使不同和不兼容的操作系统运行在同一台计算机上，并支持在运行时进行迁移，保证正常运行并且避免宕机。 Xen 4.6.x及之前版本的libxl device-handling中存在安全漏洞。本地虚拟机端攻击者可通过操作xenstore的后台目录中的信息利用该漏洞以设备域访问权限造成拒绝服务（管理工具混淆）。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- n/a n/a -

II. Public POCs for CVE-2016-4963

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III. Intelligence Information for CVE-2016-4963

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Vendor Advisories for CVE-2016-4963 (1)

Mailing List Discussions for CVE-2016-4963 (1)

Other References for CVE-2016-4963 (1)

Same Patch Batch · n/a · 2016-06-07 · 21 CVEs total

CVE-2015-5260 spice 缓冲区错误漏洞
CVE-2016-5242 Xen 拒绝服务漏洞
CVE-2016-4962 Xen 安全漏洞
CVE-2016-4450 F5 Nginx 代码问题漏洞
CVE-2016-4437 Apache Shiro 信息泄露漏洞
CVE-2016-2335 7zip 安全漏洞
CVE-2015-7695 Zend Framework SQL注入漏洞
CVE-2015-7611 Apache James Server 命令执行漏洞
CVE-2015-5723 多款Zend产品本地提权漏洞
CVE-2015-5261 Red Hat SPICE 基于堆的缓冲区溢出漏洞
CVE-2013-7440 Cpython 安全漏洞
CVE-2015-5231 CRIU 安全漏洞
CVE-2015-5228 CRIU 安全漏洞
CVE-2014-9747 FreeType 远程拒绝服务漏洞
CVE-2014-9746 FreeType 拒绝服务漏洞
CVE-2014-8177 Swift-on-File 远程拒绝服务漏洞
CVE-2016-4545 多款F5 BIG-IP产品安全漏洞
CVE-2016-3093 Apache Struts 2 拒绝服务漏洞
CVE-2016-3087 Apache Struts 输入验证错误漏洞
CVE-2016-3072 Katello SQL注入漏洞

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2016-4963

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