Unprivileged attackers can get a root shell by exploiting an authentication bypass vulnerability in the polkit auth system service installed by default on many modern Linux distributions. This polkit local privilege escalation bug (tra...
Cybersecurity researchers have identified two new vulnerabilities in Linux-based OSes that, if successfully exploited, could enable attackers to bypass mitigations for speculative attacks such as Spectre and obtain sensitive information from kernel memory.
Canonical has released another Linux kernel security update for Ubuntu to address six vulnerabilities affecting the Linux 5.8 and 5.4 kernels of several Ubuntu releases. Update ASAP to prevent DoS, information leakage and other security threats.
Researchers have discovered three vulnerabilities capable of granting attackers root privileges on Linux systems if they are able to gain access through other methods. These bugs, which affect the iSCSI kernel subsystem, have existed for more than 15 years.