#VU91353 Information disclosure in Linux kernel - CVE-2023-52652

Vulnerability identifier: #VU91353

Vulnerability 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-2023-52652

CWE-ID: CWE-200

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to information disclosure within the pci_vntb_probe() function in drivers/pci/endpoint/functions/pci-epf-vntb.c, within the EXPORT_SYMBOL() and ntb_register_device() functions in drivers/ntb/core.c. A local user can gain access to sensitive information.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/a62b9f3d7bbfac874cc0c638bc1776dcf1f8ec06
https://git.kernel.org/stable/c/6632a54ac8057cc0b0d789c6f73883e871bcd25c
https://git.kernel.org/stable/c/a039690d323221eb5865f1f31db3ec264e7a14b6
https://git.kernel.org/stable/c/e8025439ef8e16029dc313d78a351ef192469b7b
https://git.kernel.org/stable/c/913421f9f7fd8324dcc41753d0f28b52e177ef04
https://git.kernel.org/stable/c/aebfdfe39b9327a3077d0df8db3beb3160c9bdd0

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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.