Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
The kernel in NetBSD, probably 5.0.1 and earlier, on x86 platforms does not properly handle a pre-commit failure of the iret instruction, which might allow local users to gain privileges via vectors related to a tempEIP pseudocode variable that is outside of the code-segment limits.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
NetBSD IRET通用保护错误处理本地权限提升漏洞
Vulnerability Description
NetBSD是一款免费开放源代码的UNIX性质的操作系统。 在Intel架构上，操作系统内核完成了对中断或异常的服务后通常会使用iret返回到用户态。iret指令会恢复执行继续所需的上下文，如代码段、指令指针、标记等。在受保护模式中iret会分为两个不同的阶段执行，分别为提交前阶段(pre-commit，权限级别改变之前)和提交后阶段(post-commit，权限级别改变后)。可在以下伪代码中找到提交点： IF new mode != 64-Bit Mode THEN IF tempEIP is not
CVSS Information
N/A
Vulnerability Type
N/A