SB2025022777 - Out-of-bounds read in Linux kernel net usb driver



SB2025022777 - Out-of-bounds read in Linux kernel net usb driver

Published: February 27, 2025 Updated: May 11, 2025

Security Bulletin ID SB2025022777
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Out-of-bounds read (CVE-ID: CVE-2025-21743)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to an out-of-bounds read error within the ipheth_rcvbulk_callback_ncm() function in drivers/net/usb/ipheth.c. A local user can perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.