Vulnerability Information
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
N/A
Vulnerability Description
arch/x86/x86_emulate/x86_emulate.c in Xen 3.2.1 through 4.4.x does not properly check privileges, which allows local HVM guest users to gain privileges or cause a denial of service (crash) via a crafted (1) CALL, (2) JMP, (3) RETF, (4) LCALL, (5) LJMP, or (6) LRET far branch instruction.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Xen 代码注入漏洞
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 3.2.1版本至4.4.0版本中的arch/x86/x86_emulate/x86_emulate.c文件中存在安全漏洞，该漏洞源于程序没有正确检查权限。本地攻击者可借助多个特制far branch指令（CALL、JMP、RETF、LCALL、 LJMP和LRET）利用该漏洞获取权限或造成拒绝服务（崩溃）。
CVSS Information
N/A
Vulnerability Type
N/A