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RootSSV:30113HistoryFeb 14, 2012 - 12:00 a.m.
Linux kernel 2.6.x KVM create_pit_timer()函数本地拒绝服务漏洞
2012-02-1400:00:00
Root
www.seebug.org
45
EPSS
0
Percentile
5.1%
BUGTRAQ ID: 51172
CVE ID: CVE-2011-4622
Linux是自由电脑操作系统内核。
Linux Kernel在create_pit_timer()的实现上存在本地拒绝服务漏洞，KVM 83的arch/x86/kvm/i8254.c中的create_pit_timer函数在irqchip不可用时没有正确处理PIT IRQ，本地攻击者可利用定时器通过此漏洞造成内核崩溃，拒绝服务合法用户。
0
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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