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    CVE-2018-20784

    In the Linux kernel before 4.20.2, kernel/sched/fair.c mishandles leaf cfs_rq's, which allows attackers to cause a denial of service (infinite loop in update_blocked_averages) or possibly have unspecified other impact by inducing a high load.

    Published:Dec 28, 2018
    Last Modified:Nov 21, 2024
    EPS:Feb 22, 2019
    EPSS Score:0.00768
    CVSS Score:9.8

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Linux For Real Time

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c40f7d74c741a907cfaeb73a7697081881c497d0
    https://access.redhat.com/errata/RHSA-2019:1959
    https://access.redhat.com/errata/RHSA-2019:1971
    https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.2
    https://github.com/torvalds/linux/commit/c40f7d74c741a907cfaeb73a7697081881c497d0
    https://usn.ubuntu.com/4115-1/
    https://usn.ubuntu.com/4118-1/
    https://usn.ubuntu.com/4211-1/
    https://usn.ubuntu.com/4211-2/
    http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c40f7d74c741a907cfaeb73a7697081881c497d0
    https://access.redhat.com/errata/RHSA-2019:1959
    https://access.redhat.com/errata/RHSA-2019:1971
    https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.2
    https://github.com/torvalds/linux/commit/c40f7d74c741a907cfaeb73a7697081881c497d0
    https://usn.ubuntu.com/4115-1/
    https://usn.ubuntu.com/4118-1/
    https://usn.ubuntu.com/4211-1/
    https://usn.ubuntu.com/4211-2/

    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