CVE-2014-7156: CVE-2014-7156

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I. Basic Information for CVE-2014-7156

Vulnerability Information

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Vulnerability Title

N/A

Source: NVD (National Vulnerability Database)

Vulnerability Description

The x86_emulate function in arch/x86/x86_emulate/x86_emulate.c in Xen 3.3.x through 4.4.x does not check the supervisor mode permissions for instructions that generate software interrupts, which allows local HVM guest users to cause a denial of service (guest crash) via unspecified vectors.

Source: NVD (National Vulnerability Database)

CVSS Information

N/A

Source: NVD (National Vulnerability Database)

Vulnerability Type

N/A

Source: NVD (National Vulnerability Database)

Vulnerability Title

Xen 权限许可和访问控制漏洞

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 3.3.x至4.4.x版本的arch/x86/x86_emulate/x86_emulate.c文件中的‘x86_emulate’函数存在安全漏洞，该漏洞源于程序没有检查执行生成软件中断指令的管理模式权限。本地虚拟机端的攻击者可利用该漏洞造成拒绝服务（虚拟机崩溃）。

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-2014-7156

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2014-7156

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http://support.citrix.com/article/CTX200218x_refsource_CONFIRM
http://xenbits.xen.org/xsa/advisory-106.htmlx_refsource_CONFIRM
http://secunia.com/advisories/61890third-party-advisoryx_refsource_SECUNIA
http://www.securityfocus.com/bid/70062vdb-entryx_refsource_BID
http://secunia.com/advisories/61858third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/61500third-party-advisoryx_refsource_SECUNIA
http://www.debian.org/security/2014/dsa-3041vendor-advisoryx_refsource_DEBIAN
http://security.gentoo.org/glsa/glsa-201412-42.xmlvendor-advisoryx_refsource_GENTOO
http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140418.htmlvendor-advisoryx_refsource_FEDORA
http://lists.fedoraproject.org/pipermail/package-announce/2014-October/140483.htmlvendor-advisoryx_refsource_FEDORA
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.htmlvendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.htmlvendor-advisoryx_refsource_SUSE
https://nvd.nist.gov/vuln/detail/CVE-2014-7156

IV. Related Vulnerabilities

Same product: n/a

Same vendor: n/a

V. Comments for CVE-2014-7156

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I. Basic Information for CVE-2014-7156

Vulnerability Information

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Affected Products

II. Public POCs for CVE-2014-7156

III. Intelligence Information for CVE-2014-7156

IV. Related Vulnerabilities

V. Comments for CVE-2014-7156

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