Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
The Linux kernel 2.4.20 and earlier, and 2.5.x, when running on x86 systems, allows local users to cause a denial of service (hang) via the emulation mode, which does not properly clear TF and NT EFLAGs.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Linux Kernel 系统调用TF/NT标记本地拒绝服务攻击漏洞
Vulnerability Description
Linux Kernel是开放源代码的Linux内核系统。 Linux内核不正确处理系统调用的TF/NT标记，本地攻击者利用这个漏洞可以进行拒绝服务攻击。 Linux内核在处理lcall调用时会仿真一个陷阱/中断门. 真正的陷阱/中断门会在进入内核之前清除EFLAGS中的TF和NT标记， 然而Linux内核的仿真代码在实现上没有做这一步处理. 如果本地攻击者在调用lcall之前有意设置了TF或NT标志， 就会导致内核错误地根据EFLAGS进行处理， 这将造成内核崩溃， 系统可能挂起或重启. 这个漏洞影响x
CVSS Information
N/A
Vulnerability Type
N/A