CVE-2025-38249None▾ SunlitIn 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 d…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 5.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
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.
Linux >= 9a2fe9b801f585baccf8352d82839dcd54b300cf < 24ff7d465c4284529bbfa207757bffb6f44b6403Linux >= 9a2fe9b801f585baccf8352d82839dcd54b300cf < 2dc1c3edf67abd30c757f8054a5da61927cdda21Linux >= 9a2fe9b801f585baccf8352d82839dcd54b300cf < c3fb926abe90d86f5e3055e0035f04d9892a118bLinux >= 9a2fe9b801f585baccf8352d82839dcd54b300cf < 6eb211788e1370af52a245d4d7da35c374c7b401Linux >= 9a2fe9b801f585baccf8352d82839dcd54b300cf < 74fcb3852a2f579151ce80b9ed96cd916ba0d5d8Linux >= 9a2fe9b801f585baccf8352d82839dcd54b300cf < 0ee87c2814deb5e42921281116ac3abcb326880bLinux >= 9a2fe9b801f585baccf8352d82839dcd54b300cf < 11e740dc1a2c8590eb7074b5c4ab921bb6224c36Linux >= 9a2fe9b801f585baccf8352d82839dcd54b300cf < fb4e2a6e8f28a3c0ad382e363aeb9cd822007b8aLinux 4.17Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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