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Debian: CVE-2021-42327: linux -- security update

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Debian: CVE-2021-42327: linux -- security update

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:P)
Published
10/21/2021
Created
07/31/2024
Added
07/30/2024
Modified
07/30/2024

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.

Solution(s)

  • debian-upgrade-linux

References

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