CVE-2018-8781

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    CVE-2018-8781

    Published: 23 Apr 2018Last Modified: 15 Mar 2026

    Summary:

    Details: The udl_fb_mmap function in drivers/gpu/drm/udl/udl_fb.c at the Linux kernel version 3.4 and up to and including 4.15 has an integer-overflow vulnerability allowing local users with access to the udldrmfb driver to obtain full read and write permissions on kernel physical pages, resulting in a code execution in kernel space.

    References: https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html, https://research.checkpoint.com/mmap-vulnerabilities-linux-kernel/, https://usn.ubuntu.com/3677-2/, https://www.debian.org/security/2018/dsa-4188, https://access.redhat.com/errata/RHSA-2018:3096, https://usn.ubuntu.com/3654-1/, https://usn.ubuntu.com/3654-2/, https://usn.ubuntu.com/3656-1/, https://usn.ubuntu.com/3674-1/, https://access.redhat.com/errata/RHSA-2018:2948, https://access.redhat.com/errata/RHSA-2018:3083, https://usn.ubuntu.com/3674-2/, https://usn.ubuntu.com/3677-1/, https://www.debian.org/security/2018/dsa-4187, https://patchwork.freedesktop.org/patch/211845/

    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
    CVE-2018-8781 | CVE-DB