CVE-2021-42327
MEDIUMLinux Kernel < 5.14.14 - Heap-Based Buffer Overflow in AMD GPU Display Debug Filesystem
Title source: llmExploitation Summary
EIP tracks 1 public exploit for CVE-2021-42327. PoCs published by docfate111.
AI-analyzed exploit summary This repository contains a working exploit for CVE-2021-42327, a SLUB overflow vulnerability. The exploit leverages heap manipulation techniques to achieve arbitrary write and ultimately escalate privileges by overwriting modprobe_path.
Description
dp_link_settings_write in drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c in the Linux kernel through 5.14.14 allows a heap-based buffer overflow by an attacker who can write a string to the AMD GPU display drivers debug filesystem. There are no checks on size within parse_write_buffer_into_params when it uses the size of copy_from_user to copy a userspace buffer into a 40-byte heap buffer.
Exploits (1)
This repository contains a working exploit for CVE-2021-42327, a SLUB overflow vulnerability. The exploit leverages heap manipulation techniques to achieve arbitrary write and ultimately escalate privileges by overwriting modprobe_path.
References (5)
Scores
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H