UBUNTU-CVE-2018-16658

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    UBUNTU-CVE-2018-16658

    Published: 7 Sept 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2018-16658
    Aliases:
    USN-3797-1
    USN-3797-2
    USN-3820-1

    Summary:

    Details: An issue was discovered in the Linux kernel before 4.18.6. An information leak in cdrom_ioctl_drive_status in drivers/cdrom/cdrom.c could be used by local attackers to read kernel memory because a cast from unsigned long to int interferes with bounds checking. This is similar to CVE-2018-10940.

    References: https://ubuntu.com/security/CVE-2018-16658, http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8f3fafc9c2f0ece10832c25f7ffcb07c97a32ad4, https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.6, https://ubuntu.com/security/notices/USN-3797-1, https://ubuntu.com/security/notices/USN-3797-2, https://ubuntu.com/security/notices/USN-3820-1, https://ubuntu.com/security/notices/USN-3820-2, https://ubuntu.com/security/notices/USN-3820-3, https://ubuntu.com/security/notices/USN-3822-1, https://ubuntu.com/security/notices/USN-3822-2, https://www.cve.org/CVERecord?id=CVE-2018-16658

    Affected packages

    Package

    Name: linux

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.13.0-162.212

    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