SB2024062459 - Buffer overflow in Linux kernel fbdev core driver
Published: June 24, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024062459
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2023-52731)
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.
Remediation
Install update from vendor's website.
References
- 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