UBUNTU-CVE-2018-8781

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    UBUNTU-CVE-2018-8781

    Published: 23 Apr 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2018-8781
    Aliases:
    USN-3654-1
    USN-3654-2
    USN-3656-1

    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://ubuntu.com/security/CVE-2018-8781, https://bugzilla.redhat.com/show_bug.cgi?id=1571062, https://patchwork.freedesktop.org/patch/211845/, https://ubuntu.com/security/notices/USN-3654-1, https://ubuntu.com/security/notices/USN-3654-2, https://ubuntu.com/security/notices/USN-3656-1, https://ubuntu.com/security/notices/USN-3677-1, https://ubuntu.com/security/notices/USN-3677-2, https://ubuntu.com/security/notices/USN-3674-1, https://ubuntu.com/security/notices/USN-3674-2, https://www.cve.org/CVERecord?id=CVE-2018-8781

    Affected packages

    Package

    Name: linux

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.13.0-151.201

    Affected versions

    3.11.0-12.19

    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