Vulnerability identifier: #VU91487

Vulnerability risk: Low

CVSSv3.1: 7.7 [AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-52517

CWE-ID: CWE-362

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 escalate privileges on the system.

The vulnerability exists due to a race condition within the sun6i_spi_max_transfer_size(), sun6i_spi_prepare_dma(), sun6i_spi_transfer_one(), sun6i_spi_handler() and sun6i_spi_probe() functions in drivers/spi/spi-sun6i.c. A local user can escalate privileges on the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
http://git.kernel.org/stable/c/bd1ec7f9983b5cd3c77e0f7cda3fa8aed041af2f
http://git.kernel.org/stable/c/36b29974a7ad2ff604c24ad348f940506c7b1209
http://git.kernel.org/stable/c/4e149d524678431638ff378ef6025e4e89b71097
http://git.kernel.org/stable/c/1f11f4202caf5710204d334fe63392052783876d

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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.