CVE-2025-38249

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-38249
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.

7.1 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/0ee87c2814deb5e42921281116ac3abcb326880b Patch
https://git.kernel.org/stable/c/11e740dc1a2c8590eb7074b5c4ab921bb6224c36 Patch
https://git.kernel.org/stable/c/24ff7d465c4284529bbfa207757bffb6f44b6403 Patch
https://git.kernel.org/stable/c/2dc1c3edf67abd30c757f8054a5da61927cdda21 Patch
https://git.kernel.org/stable/c/6eb211788e1370af52a245d4d7da35c374c7b401 Patch
https://git.kernel.org/stable/c/74fcb3852a2f579151ce80b9ed96cd916ba0d5d8 Patch
https://git.kernel.org/stable/c/c3fb926abe90d86f5e3055e0035f04d9892a118b Patch
https://git.kernel.org/stable/c/fb4e2a6e8f28a3c0ad382e363aeb9cd822007b8a Patch
https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html Third Party Advisory Mailing List
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html Third Party Advisory Mailing List
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.16:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.16:rc3:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
History

18 Dec 2025, 17:11

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/0ee87c2814deb5e42921281116ac3abcb326880b - () https://git.kernel.org/stable/c/0ee87c2814deb5e42921281116ac3abcb326880b - Patch
References () https://git.kernel.org/stable/c/11e740dc1a2c8590eb7074b5c4ab921bb6224c36 - () https://git.kernel.org/stable/c/11e740dc1a2c8590eb7074b5c4ab921bb6224c36 - Patch
References () https://git.kernel.org/stable/c/24ff7d465c4284529bbfa207757bffb6f44b6403 - () https://git.kernel.org/stable/c/24ff7d465c4284529bbfa207757bffb6f44b6403 - Patch
References () https://git.kernel.org/stable/c/2dc1c3edf67abd30c757f8054a5da61927cdda21 - () https://git.kernel.org/stable/c/2dc1c3edf67abd30c757f8054a5da61927cdda21 - Patch
References () https://git.kernel.org/stable/c/6eb211788e1370af52a245d4d7da35c374c7b401 - () https://git.kernel.org/stable/c/6eb211788e1370af52a245d4d7da35c374c7b401 - Patch
References () https://git.kernel.org/stable/c/74fcb3852a2f579151ce80b9ed96cd916ba0d5d8 - () https://git.kernel.org/stable/c/74fcb3852a2f579151ce80b9ed96cd916ba0d5d8 - Patch
References () https://git.kernel.org/stable/c/c3fb926abe90d86f5e3055e0035f04d9892a118b - () https://git.kernel.org/stable/c/c3fb926abe90d86f5e3055e0035f04d9892a118b - Patch
References () https://git.kernel.org/stable/c/fb4e2a6e8f28a3c0ad382e363aeb9cd822007b8a - () https://git.kernel.org/stable/c/fb4e2a6e8f28a3c0ad382e363aeb9cd822007b8a - Patch
References () https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html - () https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html - Third Party Advisory, Mailing List
References () https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html - () https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html - Third Party Advisory, Mailing List
CPE cpe:2.3:o:linux:linux_kernel:6.16:rc2:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.16:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:*
First Time Linux
Debian
Debian debian Linux
Linux linux Kernel
CWE CWE-125
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.1

03 Nov 2025, 18:16

Type Values Removed Values Added
References
  • () https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html -
  • () https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html -

17 Jul 2025, 17:15

Type Values Removed Values Added
References
  • () https://git.kernel.org/stable/c/24ff7d465c4284529bbfa207757bffb6f44b6403 -
  • () https://git.kernel.org/stable/c/2dc1c3edf67abd30c757f8054a5da61927cdda21 -

10 Jul 2025, 15:15

Type Values Removed Values Added
References
  • () https://git.kernel.org/stable/c/c3fb926abe90d86f5e3055e0035f04d9892a118b -

10 Jul 2025, 13:17

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ALSA: usb-audio: Corregir lectura fuera de los límites en snd_usb_get_audioformat_uac3() En snd_usb_get_audioformat_uac3(), el valor de longitud devuelto por snd_usb_ctl_msg() se usa directamente para la asignación de memoria sin validación. Esta longitud la controla el dispositivo USB. El búfer asignado se convierte a un uac3_cluster_header_descriptor y se accede a sus campos sin verificar que el búfer sea lo suficientemente grande. Si el dispositivo devuelve una longitud menor de la esperada, esto conduce a una lectura fuera de los límites. Añada una comprobación de longitud para garantizar que el búfer sea lo suficientemente grande para uac3_cluster_header_descriptor.

09 Jul 2025, 11:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-07-09 11:15

Updated : 2025-12-18 17:11

NVD link : CVE-2025-38249

Mitre link : CVE-2025-38249

CVE.ORG link : CVE-2025-38249

JSON object : View

Products Affected

debian

  • debian_linux

linux

  • linux_kernel
CWE
CWE-125

Out-of-bounds Read