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RootSSV:15039HistoryDec 12, 2009 - 12:00 a.m.
Linux Kernel KVM handle_dr()本地拒绝服务漏洞
2009-12-1200:00:00
Root
www.seebug.org
17
EPSS
0.003
Percentile
70.3%
BUGTRAQ ID: 37221
CVE(CAN) ID: CVE-2009-3722
Linux Kernel是开放源码操作系统Linux所使用的内核。
Linux Kernel KVM子系统中arch/x86/kvm/vmx.c文件的handle_dr函数在访问调试寄存器之前没有正确地验证当前权限级别（CPL），这可能允许guest操作系统用户通过特制的应用程序导致host操作系统拒绝服务。
Linux kernel 2.6.x
厂商补丁：
Linux
目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载：
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