First published: Thu Oct 21 2021(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
Affected Software | Affected Version | How to fix |
---|---|---|
Linux Kernel | <=5.14.14 | |
Red Hat Fedora | =35 | |
All of | ||
NetApp H300S Firmware | ||
NetApp H300S Firmware | ||
All of | ||
NetApp H500e Firmware | ||
NetApp H500e Firmware | ||
All of | ||
NetApp H700S | ||
NetApp H700S | ||
All of | ||
NetApp H300E | ||
NetApp H300E Firmware | ||
All of | ||
NetApp H500S Firmware | ||
NetApp H500e Firmware | ||
All of | ||
NetApp H700E | ||
NetApp H700E | ||
All of | ||
NetApp H410S | ||
NetApp H410S Firmware | ||
All of | ||
NetApp H410C | ||
NetApp H410C Firmware | ||
NetApp H300S Firmware | ||
NetApp H300S Firmware | ||
NetApp H500e Firmware | ||
NetApp H500e Firmware | ||
NetApp H700S | ||
NetApp H700S | ||
NetApp H300E | ||
NetApp H300E Firmware | ||
NetApp H500S Firmware | ||
NetApp H500e Firmware | ||
NetApp H700E | ||
NetApp H700E | ||
NetApp H410S | ||
NetApp H410S Firmware | ||
NetApp H410C | ||
NetApp H410C Firmware | ||
debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.128-1 6.12.20-1 6.12.21-1 |
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CVE-2021-42327 is considered a high severity vulnerability due to its potential for heap-based buffer overflow allowing remote code execution.
To fix CVE-2021-42327, upgrade to Linux kernel versions 5.10.223-1, 5.10.226-1, 6.1.123-1, 6.1.119-1, or 6.12.11-1 and later.
CVE-2021-42327 affects Linux kernel versions up to and including 5.14.14.
CVE-2021-42327 primarily affects systems running the Linux kernel, specifically those utilizing AMD GPU display drivers.
Yes, CVE-2021-42327 can be exploited remotely by an attacker who can write to the AMD GPU display drivers debug filesystem.