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Vulnerability DatabaseCVE-2025-39757
CVE-2025-39757:
Linux Kernel vulnerability analysis and mitigation
Overview
CVE-2025-39757 is a vulnerability discovered in the Linux kernel's ALSA USB audio subsystem, specifically affecting the UAC3 cluster segment descriptors validation. The vulnerability was disclosed on September 11, 2025, and affects the Linux kernel's audio handling capabilities (NVD).
Technical details
The vulnerability involves insufficient validation of UAC3 class segment descriptors in the USB audio subsystem. Specifically, the system fails to properly verify whether the sizes match with declared lengths and allocated buffer sizes, which could lead to out-of-bounds (OOB) accesses (NVD).
Impact
The vulnerability could allow malicious firmware to trigger unexpected out-of-bounds accesses in the system's memory, potentially compromising system security and stability (NVD).
Mitigation and workarounds
Multiple Linux distributions have marked this vulnerability for patching, with Ubuntu classifying it as having medium priority. Various kernel versions across different distributions are being updated to address this vulnerability (Ubuntu).
Additional resources
Source: This report was generated using AI
Related Linux Kernel vulnerabilities:
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