UBUNTU-CVE-2018-1000115

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    UBUNTU-CVE-2018-1000115

    Published: 5 Mar 2018Last Modified: 4 Feb 2026
    Aliases:
    USN-3588-1

    Summary:

    Details: Memcached version 1.5.5 contains an Insufficient Control of Network Message Volume (Network Amplification, CWE-406) vulnerability in the UDP support of the memcached server that can result in denial of service via network flood (traffic amplification of 1:50,000 has been reported by reliable sources). This attack appear to be exploitable via network connectivity to port 11211 UDP. This vulnerability appears to have been fixed in 1.5.6 due to the disabling of the UDP protocol by default.

    References: https://ubuntu.com/security/CVE-2018-1000115, https://blog.cloudflare.com/memcrashed-major-amplification-attacks-from-port-11211/, https://github.com/memcached/memcached/wiki/ReleaseNotes156, https://ubuntu.com/security/notices/USN-3588-1, https://www.cve.org/CVERecord?id=CVE-2018-1000115

    Affected packages

    Package

    Name: memcached

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.4.14-0ubuntu9.2

    Affected versions

    1.4.14-0ubuntu4
    1.4.14-0ubuntu8
    1.4.14-0ubuntu9
    1.4.14-0ubuntu9.1

    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