Linux Kernel up to 6.15-rc4 wifi brcmf_usb_dl_writeimage uninitialized pointer

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability has been found in Linux Kernel up to 6.15-rc4 and classified as problematic. Affected is the function brcmf_usb_dl_writeimage of the component wifi. This manipulation causes uninitialized pointer. This vulnerability is handled as CVE-2025-37990. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as problematic was found in Linux Kernel up to 6.15-rc4. Affected by this vulnerability is the function brcmf_usb_dl_writeimage of the component wifi. The manipulation with an unknown input leads to a uninitialized pointer vulnerability. The CWE definition for the vulnerability is CWE-824. The product accesses or uses a pointer that has not been initialized. The impact remains unknown. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: wifi: brcm80211: fmac: Add error handling for brcmf_usb_dl_writeimage() The function brcmf_usb_dl_writeimage() calls the function brcmf_usb_dl_cmd() but dose not check its return value. The 'state.state' and the 'state.bytes' are uninitialized if the function brcmf_usb_dl_cmd() fails. It is dangerous to use uninitialized variables in the conditions. Add error handling for brcmf_usb_dl_cmd() to jump to error handling path if the brcmf_usb_dl_cmd() fails and the 'state.state' and the 'state.bytes' are uninitialized. Improve the error message to report more detailed error information.

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2025-37990 since 04/16/2025. The exploitation appears to be easy. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 237223 (Debian dsa-5925 : affs-modules-6.1.0-33-4kc-malta-di - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.15.182, 6.1.138, 6.6.90, 6.12.28, 6.14.6 or 6.15-rc5 eliminates this vulnerability. Applying the patch 508be7c001437bacad7b9a43f08a723887bcd1ea/524b70441baba453b193c418e3142bd31059cc1f/08424a0922fb9e32a19b09d852ee87fb6c497538/bdb435ef9815b1ae28eefffa01c6959d0fcf1fa7/fa9b9f02212574ee1867fbefb0a675362a71b31d/8e089e7b585d95122c8122d732d1d5ef8f879396 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (237223), EUVD (EUVD-2025-15875) and CERT Bund (WID-SEC-2025-1114). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • Dell Avamar
  • Open Source Linux Kernel
  • Dell NetWorker
  • Dell Secure Connect Gateway

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Uninitialized pointer
CWE: CWE-824 / CWE-908
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 237223
Nessus Name: Debian dsa-5925 : affs-modules-6.1.0-33-4kc-malta-di - security update

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.15.182/6.1.138/6.6.90/6.12.28/6.14.6/6.15-rc5
Patch: 508be7c001437bacad7b9a43f08a723887bcd1ea/524b70441baba453b193c418e3142bd31059cc1f/08424a0922fb9e32a19b09d852ee87fb6c497538/bdb435ef9815b1ae28eefffa01c6959d0fcf1fa7/fa9b9f02212574ee1867fbefb0a675362a71b31d/8e089e7b585d95122c8122d732d1d5ef8f879396

Timelineinfo

04/16/2025 🔍
05/20/2025 +34 days 🔍
05/20/2025 +0 days 🔍
12/16/2025 +210 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-37990 (🔍)
GCVE (CVE): GCVE-0-2025-37990
GCVE (VulDB): GCVE-100-309781
EUVD: 🔍
CERT Bund: WID-SEC-2025-1114 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 05/20/2025 20:22
Updated: 12/16/2025 21:26
Changes: 05/20/2025 20:22 (58), 05/25/2025 03:55 (2), 06/04/2025 17:03 (1), 08/10/2025 04:10 (7), 09/27/2025 21:32 (1), 12/14/2025 20:20 (1), 12/16/2025 21:26 (11)
Complete: 🔍
Cache ID: 216::103

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