#VU91082 Out-of-bounds read in Linux kernel - CVE-2021-47489 

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU91082

#VU91082 Out-of-bounds read in Linux kernel - CVE-2021-47489

Published: June 4, 2024 / Updated: May 13, 2025


Vulnerability identifier: #VU91082
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-47489
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
Linux kernel
Software vendor:
Linux Foundation

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to an out-of-bounds read error within the dp_phy_settings_write(), dp_phy_test_pattern_debugfs_write(), dp_dsc_passthrough_set(), trigger_hotplug(), dp_dsc_clock_en_write(), dp_dsc_slice_width_write(), dp_dsc_slice_height_write(), dp_dsc_bits_per_pixel_write() and dp_max_bpc_write() functions in drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c. A local user can perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

External links