SB20250226626 - Integer underflow in Linux kernel serial 8250 driver
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226626
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Integer underflow (CVE-ID: CVE-2022-49613)
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to integer underflow within the uart_proc_show() function in drivers/tty/serial/serial_core.c, within the serial8250_register_ports() function in drivers/tty/serial/8250/8250_core.c. A local user can execute arbitrary code.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/190ce5cdc55d1b66ea582ac2be6fd5a72e3cc486
- https://git.kernel.org/stable/c/5df66302f03f87ae8953785a882d78e911f00c55
- https://git.kernel.org/stable/c/d9cb6fabc90102f9e61fe35bd0160db88f4f53b4
- https://git.kernel.org/stable/c/f9b11229b79c0fb2100b5bb4628a101b1d37fbf6
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.132
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.56
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19