CVE-2025-38249

HIGH

MEDIUM Priority: 0.01 BB Relevance: 39/100

Published: 2025-07-09 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Low Complexity No Interaction Conf. Impact

CVSS Vector Breakdown

AV: Local

AC: Low

PR: Low

UI: None

S: Unchanged

C: High

I: None

A: High

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Fix out-of-bounds read in snd_usb_get_audioformat_uac3() In snd_usb_get_audioformat_uac3(), the length value returned from snd_usb_ctl_msg() is used directly for memory allocation without validation. This length is controlled by the USB device. The allocated buffer is cast to a uac3_cluster_header_descriptor and its fields are accessed without verifying that the buffer is large enough. If the device returns a smaller than expected length, this leads to an out-of-bounds read. Add a length check to ensure the buffer is large enough for uac3_cluster_header_descriptor.

Weakness Classification (1)

CWE-125

Affected Software (14)

Vendor	Product	Version
Linux	Linux	9a2fe9b801f585baccf8352d82839dcd54b300cf < 24ff7d465c4284529bbfa207757bffb6f44b6403
Linux	Linux	9a2fe9b801f585baccf8352d82839dcd54b300cf < 2dc1c3edf67abd30c757f8054a5da61927cdda21
Linux	Linux	9a2fe9b801f585baccf8352d82839dcd54b300cf < c3fb926abe90d86f5e3055e0035f04d9892a118b
Linux	Linux	9a2fe9b801f585baccf8352d82839dcd54b300cf < 6eb211788e1370af52a245d4d7da35c374c7b401
Linux	Linux	9a2fe9b801f585baccf8352d82839dcd54b300cf < 74fcb3852a2f579151ce80b9ed96cd916ba0d5d8
Linux	Linux	9a2fe9b801f585baccf8352d82839dcd54b300cf < 0ee87c2814deb5e42921281116ac3abcb326880b
Linux	Linux	9a2fe9b801f585baccf8352d82839dcd54b300cf < 11e740dc1a2c8590eb7074b5c4ab921bb6224c36
Linux	Linux	9a2fe9b801f585baccf8352d82839dcd54b300cf < fb4e2a6e8f28a3c0ad382e363aeb9cd822007b8a
Linux	Linux	4.17
debian	debian_linux	11.0
linux	linux_kernel	4.17 – 5.4.296
linux	linux_kernel	6.16
linux	linux_kernel	6.16
linux	linux_kernel	6.16