Information disclosure in Linux kernel hw hfi1 driver

1) Information disclosure

EUVDB-ID: #VU91332

Risk: Low

CVSSv4.0: 1.1 [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-2023-52747

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

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 user_exp_rcv_setup() function in drivers/infiniband/hw/hfi1/file_ops.c. A local user can gain access to sensitive information.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 4.19 - 6.2 rc7

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:4.19:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:4.19.1:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:4.19.2:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:4.19.3:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:4.19.4:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:4.19.5:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:4.19.6:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:4.19.7:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:4.19.8:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:4.19.9:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/00d9e212b8a39e6ffcf31b9d2e503d2bf6009d45
https://git.kernel.org/stable/c/7896accedf5bf1277d2f305718e36dc8bac7e321
https://git.kernel.org/stable/c/79b595d9591426156a9e0635a5b5115508a36fef
https://git.kernel.org/stable/c/9bae58d58b6bb73b572356b31a62d2afc7378d12
https://git.kernel.org/stable/c/0a4f811f2e5d07bbd0c9226f4afb0a1270a831ae
https://git.kernel.org/stable/c/6601fc0d15ffc20654e39486f9bef35567106d68
https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.273
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.168
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.94
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.232
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.12
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2

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.