UBUNTU-CVE-2015-7975

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    UBUNTU-CVE-2015-7975

    Published: 31 Dec 2015Last Modified: 4 Feb 2026
    Upstream:
    CVE-2015-7975
    Aliases:
    USN-3096-1

    Summary:

    Details: The nextvar function in NTP before 4.2.8p6 and 4.3.x before 4.3.90 does not properly validate the length of its input, which allows an attacker to cause a denial of service (application crash).

    References: https://ubuntu.com/security/CVE-2015-7975, http://support.ntp.org/bin/view/Main/SecurityNotice#January_2016_NTP_4_2_8p6_Securit, http://www.talosintel.com/reports/TALOS-2016-0072/, https://ubuntu.com/security/notices/USN-3096-1, https://www.cve.org/CVERecord?id=CVE-2015-7975

    Affected packages

    Package

    Name: ntp

    Purl: pkg:deb/ubuntu/ntp@1:4.2.8p4+dfsg-3ubuntu5.3?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1:4.2.8p4+dfsg-3ubuntu5.3

    Affected versions

    1:4.2.6.p5+dfsg-3ubuntu8
    1:4.2.6.p5+dfsg-3ubuntu8.1
    1:4.2.6.p5+dfsg-3ubuntu9
    1:4.2.8p4+dfsg-3ubuntu1
    1:4.2.8p4+dfsg-3ubuntu2
    1:4.2.8p4+dfsg-3ubuntu3
    1:4.2.8p4+dfsg-3ubuntu4
    1:4.2.8p4+dfsg-3ubuntu5
    1:4.2.8p4+dfsg-3ubuntu5.1
    1:4.2.8p4+dfsg-3ubuntu5.2

    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