UBUNTU-CVE-2021-47096

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    UBUNTU-CVE-2021-47096

    Published: 4 Mar 2024Last Modified: 24 Oct 2025
    Upstream:
    CVE-2021-47096

    Summary:

    Details: In the Linux kernel, the following vulnerability has been resolved: ALSA: rawmidi - fix the uninitalized user_pversion The user_pversion was uninitialized for the user space file structure in the open function, because the file private structure use kmalloc for the allocation. The kernel ALSA sequencer code clears the file structure, so no additional fixes are required. BugLink: https://github.com/alsa-project/alsa-lib/issues/178

    References: https://ubuntu.com/security/CVE-2021-47096, https://git.kernel.org/linus/39a8fc4971a00d22536aeb7d446ee4a97810611b, https://git.kernel.org/stable/c/b398fcbe4de1e1100867fdb6f447c6fbc8fe7085, https://git.kernel.org/stable/c/39a8fc4971a00d22536aeb7d446ee4a97810611b, https://www.cve.org/CVERecord?id=CVE-2021-47096

    Affected packages

    Package

    Name: linux-hwe-edge

    Purl: pkg:deb/ubuntu/[email protected]~16.04.1?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    4.8.0-28.30~16.04.1
    4.8.0-30.32~16.04.1
    4.8.0-32.34~16.04.1
    4.8.0-34.36~16.04.1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    UBUNTU-CVE-2021-47096 | CVE-DB