之前一直对 su 和 sudo 这两个命令犯迷糊，最近专门搜了这方面的资料，总算是把两者的关系以及用法搞清楚了，这篇文章来系统总结一下。 因为本篇博客中涉及到用户切换，所以我需要提前准备好几个测试用户，方便后续切换。 Linux 中新建用户的命令是 useradd ...

A vulnerability in GNOME Display Manager (gdm) could allow a standard user to create accounts with increased privileges, giving a local attacker a path to run code with administrator permissions (root ...

A now-fixed Sudo vulnerability allowed any local user to gain root privileges on Unix-like operating systems without requiring authentication. Sudo is a Unix program ...

A vulnerability in the default installations of Ubuntu Desktop allows attackers to gain root privileges on vulnerable systems. This allows malicious actors to fully compromise susceptible systems.

Two vulnerabilities in the Ubuntu implementation of a popular container-based file system allow attackers to execute code with root privileges on 40% of Ubuntu Linux cloud workloads, researchers have ...

Ubuntu桌面版24.04及后续版本默认安装中发现了一个高危安全漏洞，攻击者可利用该漏洞将权限提升至root级别。 该漏洞编号为CVE-2026-3888，CVSS评分为7.8分，攻击者可通过此漏洞获得易受攻击系统的完全控制权。 漏洞原理与影响 Qualys威胁研究单元表示："此漏洞（CVE ...