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CVE-2024-57893 – ALSA OSS Linux Kernel Data Out-of-Bounds Access Vuln

The following table lists the changes that have been made to the
CVE-2024-57893 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jan. 15, 2025

    Action Type Old Value New Value
    Added 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.
    Added Reference https://git.kernel.org/stable/c/0179488ca992d79908b8e26b9213f1554fc5bacc
    Added Reference https://git.kernel.org/stable/c/9d382112b36382aa65aad765f189ebde9926c101
    Added Reference https://git.kernel.org/stable/c/cff1de87ed14fc0f2332213d2367100e7ad0753a
    Added Reference https://git.kernel.org/stable/c/d2392b79d8af3714ea8878b71c66dc49d3110f44
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