UBUNTU-CVE-2019-25044

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    UBUNTU-CVE-2019-25044

    Published: 14 May 2021Last Modified: 24 Oct 2025
    Upstream:
    CVE-2019-25044

    Summary:

    Details: The block subsystem in the Linux kernel before 5.2 has a use-after-free that can lead to arbitrary code execution in the kernel context and privilege escalation, aka CID-c3e2219216c9. This is related to blk_mq_free_rqs and blk_cleanup_queue.

    References: https://ubuntu.com/security/CVE-2019-25044, https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c3e2219216c92919a6bd1711f340f5faa98695e6, https://syzkaller.appspot.com/bug?id=36fe241584203cf394d44560a42e3430434f1213, https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2, https://sites.google.com/view/syzscope/kasan-use-after-free-read-in-blk_mq_free_rqs, https://www.cve.org/CVERecord?id=CVE-2019-25044

    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-2019-25044 | CVE-DB