SB20250226626 - Integer underflow in Linux kernel serial 8250 driver

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Main Vulnerability Database SB20250226626

SB20250226626 - Integer underflow in Linux kernel serial 8250 driver

Published: February 26, 2025 Updated: May 11, 2025

Security Bulletin ID SB20250226626
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Integer underflow (CVE-ID: CVE-2022-49613)

CWE-ID: CWE-191 - Integer underflow

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


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