In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btintel: Check dsbr size from EFI variable Since the size of struct btintel_dsbr is already known, we can just start there instead of querying the EFI variable size. If the final result doesn't match what we expect also fail. This fixes a stack buffer overflow when the EFI variable is larger than struct btintel_dsbr.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

No data.

No data.

References
Link Providers
https://git.kernel.org/stable/c/3aa1dc3c9060e335e82e9c182bf3d1db29220b1b cve-icon cve-icon
https://git.kernel.org/stable/c/7b8526bb489780ccc0caffc446ecabec83cfe568 cve-icon cve-icon
https://git.kernel.org/stable/c/9427f6081f37c795a8bd29d0ee72a4da3bd64af8 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025071015-CVE-2025-38315-ccfc@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-38315 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-38315 cve-icon
History

Wed, 16 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00017}

 epss

{'score': 0.00022}

Sat, 12 Jul 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Moderate

Thu, 10 Jul 2025 08:00:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btintel: Check dsbr size from EFI variable Since the size of struct btintel_dsbr is already known, we can just start there instead of querying the EFI variable size. If the final result doesn't match what we expect also fail. This fixes a stack buffer overflow when the EFI variable is larger than struct btintel_dsbr.
Title Bluetooth: btintel: Check dsbr size from EFI variable
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2025-07-10T07:42:22.569Z

Updated: 2025-07-28T04:18:26.041Z

Reserved: 2025-04-16T04:51:24.003Z

Link: CVE-2025-38315

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-07-10T08:15:30.477

Modified: 2025-07-10T13:17:30.017

Link: CVE-2025-38315

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-07-10T00:00:00Z

Links: CVE-2025-38315 - Bugzilla