Information disclosure in Linux kernel - CVE-2021-47329
Published: June 8, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU91337
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-47329
CWE-ID: CWE-200
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to information disclosure within the megasas_alloc_fusion_context() function in drivers/scsi/megaraid/megaraid_sas_fusion.c, within the megasas_probe_one() and megasas_release_fusion() functions in drivers/scsi/megaraid/megaraid_sas_base.c. A local user can gain access to sensitive information.
How to mitigate CVE-2021-47329
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/0c6226601c3e191a44a57d8f9f814b7e5c308959
- https://git.kernel.org/stable/c/0680db6f41920b2c91c7df3cc9cd5968701a6f74
- https://git.kernel.org/stable/c/04b6b9ea80906e3b41ff120b45db31768947cf72
- https://git.kernel.org/stable/c/e623f79691c5104317669ab36ec316a90c05062f
- https://git.kernel.org/stable/c/b5438f48fdd8e1c3f130d32637511efd32038152
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.52
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.19
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.134