CVE-2025-21743

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.1 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
LinuxCNA
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 2%
VendorProductVersion
linuxlinux_kernel
6.5 ≤
𝑥
< 6.6.78
linuxlinux_kernel
6.7 ≤
𝑥
< 6.12.14
linuxlinux_kernel
6.13 ≤
𝑥
< 6.13.3
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bullseye
5.10.223-1
not-affected
bookworm
6.1.129-1
not-affected
bullseye (security)
5.10.234-1
fixed
bookworm (security)
6.1.128-1
fixed
trixie
6.12.20-1
fixed
sid
6.12.21-1
fixed
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://git.kernel.org/stable/c/18bf6f5cce3172cb303c3f0551aa9443d5ed74f8
https://git.kernel.org/stable/c/c219427ed296f94bb4b91d08626776dc7719ee27
https://git.kernel.org/stable/c/d677e7dd59ad6837496f5a02d8e5d39824278dfd
https://git.kernel.org/stable/c/d824a964185910e317287f034c0a439c08b4fe49