漏洞信息
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Vulnerability Title
Stack overflow via select() file descriptor set overflow
Vulnerability Description
When exchanging data over a socket, libnv uses select(2) to wait for data to arrive. However, it does not verify whether the provided socket descriptor fits in select(2)'s file descriptor set size limit of FD_SETSIZE (1024).
An attacker who is able to force a libnv application to allocate large file descriptors, e.g., by opening many descriptors and executing a program which is not careful to close them upon startup, can trigger stack corruption. If the target application is setuid-root, then this could be used to elevate local privileges.
CVSS Information
N/A
Vulnerability Type
栈缓冲区溢出
Vulnerability Title
FreeBSD 安全漏洞
Vulnerability Description
FreeBSD是FreeBSD基金会的一套类Unix操作系统。 FreeBSD存在安全漏洞,该漏洞源于使用select等待数据时未验证套接字描述符是否在FD_SETSIZE限制内,可能导致堆栈损坏,进而可能提升本地权限。
CVSS Information
N/A
Vulnerability Type
N/A