CVE-2024-57893high

CVE-2024-57893: high-severity vulnerability in Linux

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

Published · Updated

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.8epss 0.2%
exploitation probability
0.2%top 93% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · Linux
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References
https://git.kernel.org/stable/c/0179488ca992d79908b8e26b9213f1554fc5bacchttps://git.kernel.org/stable/c/9d382112b36382aa65aad765f189ebde9926c101https://git.kernel.org/stable/c/cff1de87ed14fc0f2332213d2367100e7ad0753ahttps://git.kernel.org/stable/c/d2392b79d8af3714ea8878b71c66dc49d3110f44https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html