MGASA-2015-0152

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    MGASA-2015-0152

    Published: 15 Apr 2015Last Modified: 16 Apr 2026

    Summary: Updated ntp packages fix security vulnerabilities

    Details: Updated ntp packages fix security vulnerabilities: The symmetric-key feature in the receive function in ntp_proto.c in ntpd in NTP before 4.2.8p2 requires a correct MAC only if the MAC field has a nonzero length, which makes it easier for man-in-the-middle attackers to spoof packets by omitting the MAC (CVE-2015-1798). The symmetric-key feature in the receive function in ntp_proto.c in ntpd in NTP before 4.2.8p2 performs state-variable updates upon receiving certain invalid packets, which makes it easier for man-in-the-middle attackers to cause a denial of service (synchronization loss) by spoofing the source IP address of a peer (CVE-2015-1799).

    References: https://advisories.mageia.org/MGASA-2015-0152.html, https://bugs.mageia.org/show_bug.cgi?id=15646, http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities

    Affected packages

    Package

    Name: ntp

    Purl: pkg:rpm/mageia/ntp?arch=source&distro=mageia-4

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.2.6p5-15.5.mga4

    Affected versions

    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
    MGASA-2015-0152 | CVE-DB