CVE-2018-20855

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    CVE-2018-20855

    Published: 26 Jul 2019Last Modified: 2 Apr 2026

    Summary:

    Details: An issue was discovered in the Linux kernel before 4.18.7. In create_qp_common in drivers/infiniband/hw/mlx5/qp.c, mlx5_ib_create_qp_resp was never initialized, resulting in a leak of stack memory to userspace.

    References: https://security.netapp.com/advisory/ntap-20190905-0002/, http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00055.html, http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00056.html, https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.7, https://github.com/torvalds/linux/commit/0625b4ba1a5d4703c7fb01c497bd6c156908af00, https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0625b4ba1a5d4703c7fb01c497bd6c156908af00

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -0625b4ba1a5d4703c7fb01c497bd6c156908af00

    Affected versions

    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