UBUNTU-CVE-2017-18255

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    UBUNTU-CVE-2017-18255

    Published: 31 Mar 2018Last Modified: 26 Aug 2026
    Upstream:
    CVE-2017-18255

    Summary:

    Details: The perf_cpu_time_max_percent_handler function in kernel/events/core.c in the Linux kernel before 4.11 allows local users to cause a denial of service (integer overflow) or possibly have unspecified other impact via a large value, as demonstrated by an incorrect sample-rate calculation.

    References: https://ubuntu.com/security/CVE-2017-18255, http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1572e45a924f254d9570093abde46430c3172e3d, https://github.com/torvalds/linux/commit/1572e45a924f254d9570093abde46430c3172e3d, https://ubuntu.com/security/notices/USN-3696-1, https://ubuntu.com/security/notices/USN-3696-2, https://ubuntu.com/security/notices/USN-3754-1, https://www.cve.org/CVERecord?id=CVE-2017-18255

    Affected packages

    Package

    Name: linux

    Purl: pkg:deb/ubuntu/linux?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.13.0-157.207

    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