CVE-2018-14734

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    CVE-2018-14734

    Published: 29 Jul 2018Last Modified: 15 Mar 2026

    Summary:

    Details: drivers/infiniband/core/ucma.c in the Linux kernel through 4.17.11 allows ucma_leave_multicast to access a certain data structure after a cleanup step in ucma_process_join, which allows attackers to cause a denial of service (use-after-free).

    References: https://access.redhat.com/errata/RHSA-2019:2043, https://usn.ubuntu.com/3847-2/, https://usn.ubuntu.com/3847-3/, https://usn.ubuntu.com/3849-1/, https://usn.ubuntu.com/3849-2/, https://www.debian.org/security/2018/dsa-4308, https://access.redhat.com/errata/RHSA-2019:2029, https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html, https://usn.ubuntu.com/3797-1/, https://usn.ubuntu.com/3797-2/, https://usn.ubuntu.com/3847-1/, https://access.redhat.com/errata/RHSA-2019:0831, http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cb2595c1393b4a5211534e6f0a0fbad369e21ad8, https://github.com/torvalds/linux/commit/cb2595c1393b4a5211534e6f0a0fbad369e21ad8

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    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