Information disclosure in Linux kernel scsi megaraid driver

1) Information disclosure

EUVDB-ID: #VU91337

Risk: Low

CVSSv3.1: 2.9 [AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-47329

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

CPE2.3

External links

http://git.kernel.org/stable/c/0c6226601c3e191a44a57d8f9f814b7e5c308959
http://git.kernel.org/stable/c/0680db6f41920b2c91c7df3cc9cd5968701a6f74
http://git.kernel.org/stable/c/04b6b9ea80906e3b41ff120b45db31768947cf72
http://git.kernel.org/stable/c/e623f79691c5104317669ab36ec316a90c05062f
http://git.kernel.org/stable/c/b5438f48fdd8e1c3f130d32637511efd32038152

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.