ALSA: usb-audio: Validate UAC3 cluster segment descriptors

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Summary

CVECVE-2025-39757
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-09-11 17:15:39 UTC
Updated2026-05-12 13:17:09 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Validate UAC3 cluster segment descriptors UAC3 class segment descriptors need to be verified whether their sizes match with the declared lengths and whether they fit with the allocated buffer sizes, too. Otherwise malicious firmware may lead to the unexpected OOB accesses.

Risk And Classification

Primary CVSS: v3.1 7.1 HIGH from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Problem Types: CWE-125

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 11785ef53228d23ec386f5fe4a34601536f0c891 799c06ad4c9c790c265e8b6b94947213f1fb389c git Not specified
CNA Linux Linux affected 11785ef53228d23ec386f5fe4a34601536f0c891 786571b10b1ae6d90e1242848ce78ee7e1d493c4 git Not specified
CNA Linux Linux affected 11785ef53228d23ec386f5fe4a34601536f0c891 275e37532e8ebe25e8a4069b2d9f955bfd202a46 git Not specified
CNA Linux Linux affected 11785ef53228d23ec386f5fe4a34601536f0c891 47ab3d820cb0a502bd0074f83bb3cf7ab5d79902 git Not specified
CNA Linux Linux affected 11785ef53228d23ec386f5fe4a34601536f0c891 1034719fdefd26caeec0a44a868bb5a412c2c1a5 git Not specified
CNA Linux Linux affected 11785ef53228d23ec386f5fe4a34601536f0c891 ae17b3b5e753efc239421d186cd1ff06e5ac296e git Not specified
CNA Linux Linux affected 11785ef53228d23ec386f5fe4a34601536f0c891 dfdcbcde5c20df878178245d4449feada7d5b201 git Not specified
CNA Linux Linux affected 11785ef53228d23ec386f5fe4a34601536f0c891 7ef3fd250f84494fb2f7871f357808edaa1fc6ce git Not specified
CNA Linux Linux affected 11785ef53228d23ec386f5fe4a34601536f0c891 ecfd41166b72b67d3bdeb88d224ff445f6163869 git Not specified
CNA Linux Linux affected 4.19 Not specified
CNA Linux Linux unaffected 4.19 semver Not specified
CNA Linux Linux unaffected 5.4.297 5.4.* semver Not specified
CNA Linux Linux unaffected 5.10.241 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.190 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.149 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.103 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.43 6.12.* semver Not specified
CNA Linux Linux unaffected 6.15.11 6.15.* semver Not specified
CNA Linux Linux unaffected 6.16.2 6.16.* semver Not specified
CNA Linux Linux unaffected 6.17 * original_commit_for_fix Not specified
ADP Siemens SIMATIC CN 4100 affected V5.0 custom Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/799c06ad4c9c790c265e8b6b94947213f1fb389c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2025/10/msg00008.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
git.kernel.org/stable/c/47ab3d820cb0a502bd0074f83bb3cf7ab5d79902 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/dfdcbcde5c20df878178245d4449feada7d5b201 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/ae17b3b5e753efc239421d186cd1ff06e5ac296e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/786571b10b1ae6d90e1242848ce78ee7e1d493c4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/7ef3fd250f84494fb2f7871f357808edaa1fc6ce 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/1034719fdefd26caeec0a44a868bb5a412c2c1a5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-032379.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/275e37532e8ebe25e8a4069b2d9f955bfd202a46 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/ecfd41166b72b67d3bdeb88d224ff445f6163869 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2025/10/msg00007.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
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