Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
setpwnam.c in the util-linux package, as included in Red Hat Linux 7.3 and earlier, and other operating systems, does not properly lock a temporary file when modifying /etc/passwd, which may allow local users to gain privileges via a complex race condition that uses an open file descriptor in utility programs such as chfn and chsh.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Util-linux文件锁住本地竞争条件漏洞
Vulnerability Description
util-linux是一套包含多种系统工具如'chfn'和'chsh'的软件包，包含在多种Linux系统中。 util-linux工具在代码共享处理中存在竞争条件问题，本地攻击者可以利用这个漏洞进行权限提升。 util-linux工具包含多个工具用于执行Linux系统功能，如'chfn'工具允许用户修改存储在/etc/passwd文件中的个人信息，要修改此文件，应用程序需要以setuid root权限安装。 在部分条件下，利用util-linux工具中login-utils/setpwnam.c代码中复杂
CVSS Information
N/A
Vulnerability Type
N/A