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CVE-2014-1895

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 4.2.x和4.3.x版本中的xsm/flask/flask_op.c文件的‘flask_security_avc_cachestats’函数中存在差一错误漏洞。当使用物理CPU的大量资源时，本地攻击者可通过FLASK_AVC_CACHESTAT超级调用利用该漏洞造成拒绝服务（主机崩溃）或获取管理程序内存的敏感信息。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.53% · P45

Possible ATT&CK Techniques 1 AI

T1498 · Network Denial of Service
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I. Basic Information for CVE-2014-1895

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Off-by-one error in the flask_security_avc_cachestats function in xsm/flask/flask_op.c in Xen 4.2.x and 4.3.x, when the maximum number of physical CPUs are in use, allows local users to cause a denial of service (host crash) or obtain sensitive information from hypervisor memory by leveraging a FLASK_AVC_CACHESTAT hypercall, which triggers a buffer over-read.
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 差一错误漏洞
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 4.2.x和4.3.x版本中的xsm/flask/flask_op.c文件的‘flask_security_avc_cachestats’函数中存在差一错误漏洞。当使用物理CPU的大量资源时，本地攻击者可通过FLASK_AVC_CACHESTAT超级调用利用该漏洞造成拒绝服务（主机崩溃）或获取管理程序内存的敏感信息。
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-2014-1895

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III. Intelligence Information for CVE-2014-1895

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Vendor Advisories for CVE-2014-1895 (1)

Mailing List Discussions for CVE-2014-1895 (3)

Other References for CVE-2014-1895 (1)

Same Patch Batch · n/a · 2014-04-01 · 23 CVEs total

CVE-2014-1894 Xen 整数溢出漏洞
CVE-2014-2034 Sonatype Nexus 安全漏洞
CVE-2013-7349 Gnew SQL注入漏洞
CVE-2013-5640 Gnew CMS SQL注入漏洞
CVE-2013-2278 War FTP Daemon 拒绝服务漏洞
CVE-2009-5141 War FTP Daemon 格式化字符串漏洞
CVE-2014-2678 Linux kernel 拒绝服务漏洞
CVE-2014-2673 Linux Kernel 输入验证错误漏洞
CVE-2014-2672 Linux kernel 竞争条件漏洞
CVE-2014-2237 OpenStack Identity 权限许可和访问控制漏洞
CVE-2014-1896 Xen libvchan 输入验证漏洞
CVE-2014-2212 POSH‘remember me’信息泄露漏洞
CVE-2014-1893 Xen XSM/Flask超级调用整数溢出漏洞
CVE-2014-1892 Xen 缓冲区溢出漏洞
CVE-2014-1891 Xen 整数溢出漏洞
CVE-2013-7350 多款Check Point产品安全漏洞
CVE-2013-7348 Linux kernel 双重释放漏洞
CVE-2013-1869 spacewalk-java和Red Hat Network Satellite CRLF注入漏洞
CVE-2012-0032 Red Hat JBoss Operations Network 权限许可和访问控制漏洞
CVE-2011-4573 Red Hat JBoss Operations Network 权限许可和访问控制漏洞

Showing top 20 of 23 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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