Buffer overflow in Linux kernel - CVE-2023-52731
Published: June 24, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU93144
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-52731
CWE-ID: CWE-119
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 perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the __releases() function in drivers/video/fbdev/core/fbmem.c, within the fb_deferred_io_open() and fb_deferred_io_cleanup() functions in drivers/video/fbdev/core/fb_defio.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2023-52731
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/87b9802ca824fcee7915e717e9a60471af62e8e9
- https://git.kernel.org/stable/c/f1d91f0e9d5a240a809698d7d9c5a538e7dcc149
- https://git.kernel.org/stable/c/3efc61d95259956db25347e2a9562c3e54546e20
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.149
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2