Description

In the Linux kernel, the following vulnerability has been resolved:

ALSA: seq: oss: Fix races at processing SysEx messages

OSS sequencer handles the SysEx messages split in 6 bytes packets, and
ALSA sequencer OSS layer tries to combine those. It stores the data
in the internal buffer and this access is racy as of now, which may
lead to the out-of-bounds access.

As a temporary band-aid fix, introduce a mutex for serializing the
process of the SysEx message packets.

Classification

CVE ID: CVE-2024-57893

Affected Products

Vendor: Linux

Product: Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.05% (probability of being exploited)

EPSS Percentile: 17.81% (scored less or equal to compared to others)

EPSS Date: 2025-02-13 (when was this score calculated)

References

https://git.kernel.org/stable/c/cff1de87ed14fc0f2332213d2367100e7ad0753a
https://git.kernel.org/stable/c/d2392b79d8af3714ea8878b71c66dc49d3110f44
https://git.kernel.org/stable/c/9d382112b36382aa65aad765f189ebde9926c101
https://git.kernel.org/stable/c/0179488ca992d79908b8e26b9213f1554fc5bacc

Timeline