CVE-2025-21743

usbnet: ipheth: fix possible overflow in DPE length check

High · published February 27, 2025

CVSS v3.1
7.1
EPSS
0%
Percentile
11.4
In the wild
Unconfirmed
What it is

In the Linux kernel, the following vulnerability has been resolved:

usbnet: ipheth: fix possible overflow in DPE length check

Originally, it was possible for the DPE length check to overflow if

wDatagramIndex + wDatagramLength > U16_MAX. This could lead to an OoB

read.

Move the wDatagramIndex term to the other side of the inequality.

An existing condition ensures that wDatagramIndex < urb->actual_length.

The record
Technical detail
CVSS v3.1
7.1 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00216 · 11.4th percentile
Published
2025-02-27T02:12Z
EPSS history
Timeline
  • 27 FEB 02:12Z
    usbnet: ipheth: fix possible overflow in DPE length check
    cvelistv5