UBUNTU-CVE-2018-19407

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    UBUNTU-CVE-2018-19407

    Published: 20 Nov 2018Last Modified: 22 Apr 2026
    Upstream:
    CVE-2018-19407
    Aliases:
    USN-3871-1
    USN-3871-3
    USN-3871-4

    Summary:

    Details: The vcpu_scan_ioapic function in arch/x86/kvm/x86.c in the Linux kernel through 4.19.2 allows local users to cause a denial of service (NULL pointer dereference and BUG) via crafted system calls that reach a situation where ioapic is uninitialized.

    References: https://ubuntu.com/security/CVE-2018-19407, https://lore.kernel.org/lkml/[email protected]/, https://ubuntu.com/security/notices/USN-3871-1, https://ubuntu.com/security/notices/USN-3872-1, https://ubuntu.com/security/notices/USN-3871-3, https://ubuntu.com/security/notices/USN-3871-4, https://ubuntu.com/security/notices/USN-3878-1, https://ubuntu.com/security/notices/USN-3879-1, https://ubuntu.com/security/notices/USN-3879-2, https://ubuntu.com/security/notices/USN-3871-5, https://ubuntu.com/security/notices/USN-3878-2, https://www.cve.org/CVERecord?id=CVE-2018-19407

    Affected packages

    Package

    Name: linux-aws

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.4.0-1038.41

    Affected versions

    4.4.0-1002.2
    4.4.0-1003.3
    4.4.0-1005.5
    4.4.0-1006.6
    4.4.0-1009.9
    4.4.0-1010.10
    4.4.0-1011.11
    4.4.0-1012.12
    4.4.0-1014.14
    4.4.0-1016.16
    4.4.0-1017.17
    4.4.0-1019.19
    4.4.0-1022.22
    4.4.0-1023.23
    4.4.0-1024.25
    4.4.0-1025.26
    4.4.0-1027.30
    4.4.0-1028.31
    4.4.0-1029.32
    4.4.0-1031.34
    4.4.0-1032.35
    4.4.0-1034.37
    4.4.0-1036.39
    4.4.0-1037.40

    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
    UBUNTU-CVE-2018-19407 | CVE-DB