UBUNTU-CVE-2015-7973

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    UBUNTU-CVE-2015-7973

    Published: 31 Dec 2015Last Modified: 4 Feb 2026
    Upstream:
    CVE-2015-7973
    Aliases:
    USN-3096-1

    Summary:

    Details: NTP before 4.2.8p6 and 4.3.x before 4.3.90, when configured in broadcast mode, allows man-in-the-middle attackers to conduct replay attacks by sniffing the network.

    References: https://ubuntu.com/security/CVE-2015-7973, http://support.ntp.org/bin/view/Main/SecurityNotice#January_2016_NTP_4_2_8p6_Securit, http://www.talosintel.com/reports/TALOS-2016-0070/, https://ubuntu.com/security/notices/USN-3096-1, https://www.cve.org/CVERecord?id=CVE-2015-7973

    Affected packages

    Package

    Name: ntp

    Purl: pkg:deb/ubuntu/ntp@1:4.2.6.p5+dfsg-3ubuntu2.14.04.10?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1:4.2.6.p5+dfsg-3ubuntu2.14.04.10

    Affected versions

    1:4.2.6.p5+dfsg-3ubuntu2
    1:4.2.6.p5+dfsg-3ubuntu2.14.04.1
    1:4.2.6.p5+dfsg-3ubuntu2.14.04.2
    1:4.2.6.p5+dfsg-3ubuntu2.14.04.3
    1:4.2.6.p5+dfsg-3ubuntu2.14.04.5
    1:4.2.6.p5+dfsg-3ubuntu2.14.04.6
    1:4.2.6.p5+dfsg-3ubuntu2.14.04.7
    1:4.2.6.p5+dfsg-3ubuntu2.14.04.8

    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