CVE-2025-0690
MEDIUMRed Hat Enterprise Linux 9 - Out-of-bounds Write via Read Command Input Buffer Overflow
Title source: llmExploitation Summary
EIP tracks 1 public exploit for CVE-2025-0690. PoCs published by kaleth4.
AI-analyzed exploit summary The repository contains a functional exploit for CVE-2025-0690, targeting an integer overflow vulnerability in GRUB2's 'read' command. The exploit leverages a stack overflow and Ret2Libc technique to achieve remote code execution, demonstrated via a reverse shell payload.
Description
The read command is used to read the keyboard input from the user, while reads it keeps the input length in a 32-bit integer value which is further used to reallocate the line buffer to accept the next character. During this process, with a line big enough it's possible to make this variable to overflow leading to a out-of-bounds write in the heap based buffer. This flaw may be leveraged to corrupt grub's internal critical data and secure boot bypass is not discarded as consequence.
Exploits (1)
The repository contains a functional exploit for CVE-2025-0690, targeting an integer overflow vulnerability in GRUB2's 'read' command. The exploit leverages a stack overflow and Ret2Libc technique to achieve remote code execution, demonstrated via a reverse shell payload.
References (4)
Scores
CVSS:3.1/AV:P/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H