Out-of-bounds Write Affecting kernel-livepatch-5_14_21-150500_13_58-rt package, versions <1-150500.11.3.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (21st percentile)

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  • Snyk IDSNYK-SLES155-KERNELLIVEPATCH514211505001358RT-7251110
  • published13 Jun 2024
  • disclosed12 Jun 2024

Introduced: 12 Jun 2024

CVE-2021-42327  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade SLES:15.5 kernel-livepatch-5_14_21-150500_13_58-rt to version 1-150500.11.3.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-5_14_21-150500_13_58-rt package and not the kernel-livepatch-5_14_21-150500_13_58-rt package as distributed by SLES. See How to fix? for SLES:15.5 relevant fixed versions and status.

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.

CVSS Scores

version 3.1