Linux Shim Bootloader Flaw Expose Most Linux Distros to Code Execution Attacks

Post Reply
Shane1145
Posts: 1689
Joined: Wed Sep 25, 2024 2:31 pm

Linux Shim Bootloader Flaw Expose Most Linux Distros to Code Execution Attacks

Post by Shane1145 »

Shim is a small application used by open-source projects and other third parties for verifying and running the bootloader (typically GRUB2). The application was developed specifically to circumvent legal issues arising from license compatibility.

Shim has become a critical piece of software for many Linux distributions to support secure boot. However, it has been discovered with a new vulnerability related to out-of-bounds written in HTTP protocol handling that could allow a threat actor to compromise a victim machine completely. This vulnerability has been assigned with CVE-2023-40547, and the severity has been given as 9.8 (Critical).


https://cybersecuritynews.com/linux-shi ... ader-flaw/
Post Reply