Skip to content
OpenAdvisories
Medium RHSA-2020:2663 2 CVEs

Red Hat Security Advisory: ntp security update

Published Sep 16, 2024 · Updated Jun 26, 2026

Ecosystem: Red Hat

Fixed packages 24

ReleasePackageFixed in
Red Hat · RHEL 7 enterprise_linux:7::client ntp 0:4.2.6p5-29.el7_8.2
Red Hat · RHEL 7 enterprise_linux:7::client ntp-debuginfo 0:4.2.6p5-29.el7_8.2
Red Hat · RHEL 7 enterprise_linux:7::client ntp-doc 0:4.2.6p5-29.el7_8.2
Red Hat · RHEL 7 enterprise_linux:7::client ntp-perl 0:4.2.6p5-29.el7_8.2
Red Hat · RHEL 7 enterprise_linux:7::client ntpdate 0:4.2.6p5-29.el7_8.2
Red Hat · RHEL 7 enterprise_linux:7::client sntp 0:4.2.6p5-29.el7_8.2
Red Hat · RHEL 7 enterprise_linux:7::computenode ntp 0:4.2.6p5-29.el7_8.2
Red Hat · RHEL 7 enterprise_linux:7::computenode ntp-debuginfo 0:4.2.6p5-29.el7_8.2
Red Hat · RHEL 7 enterprise_linux:7::computenode ntp-doc 0:4.2.6p5-29.el7_8.2
Red Hat · RHEL 7 enterprise_linux:7::computenode ntp-perl 0:4.2.6p5-29.el7_8.2
Red Hat · RHEL 7 enterprise_linux:7::computenode ntpdate 0:4.2.6p5-29.el7_8.2
Red Hat · RHEL 7 enterprise_linux:7::computenode sntp 0:4.2.6p5-29.el7_8.2
Red Hat · RHEL 7 enterprise_linux:7::server ntp 0:4.2.6p5-29.el7_8.2
Red Hat · RHEL 7 enterprise_linux:7::server ntp-debuginfo 0:4.2.6p5-29.el7_8.2
Red Hat · RHEL 7 enterprise_linux:7::server ntp-doc 0:4.2.6p5-29.el7_8.2
Red Hat · RHEL 7 enterprise_linux:7::server ntp-perl 0:4.2.6p5-29.el7_8.2
Red Hat · RHEL 7 enterprise_linux:7::server ntpdate 0:4.2.6p5-29.el7_8.2
Red Hat · RHEL 7 enterprise_linux:7::server sntp 0:4.2.6p5-29.el7_8.2
Red Hat · RHEL 7 enterprise_linux:7::workstation ntp 0:4.2.6p5-29.el7_8.2
Red Hat · RHEL 7 enterprise_linux:7::workstation ntp-debuginfo 0:4.2.6p5-29.el7_8.2
Red Hat · RHEL 7 enterprise_linux:7::workstation ntp-doc 0:4.2.6p5-29.el7_8.2
Red Hat · RHEL 7 enterprise_linux:7::workstation ntp-perl 0:4.2.6p5-29.el7_8.2
Red Hat · RHEL 7 enterprise_linux:7::workstation ntpdate 0:4.2.6p5-29.el7_8.2
Red Hat · RHEL 7 enterprise_linux:7::workstation sntp 0:4.2.6p5-29.el7_8.2

Vulnerabilities 2

  • Medium 5.9
    CVE-2020-11868

    ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows an off-path attacker to block unauthenticated synchronizati…

    ntp ntp Debian Ubuntu
  • Medium 5.9
    CVE-2020-13817

    ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows remote attackers to cause a denial of service (daemon exit …

    ntp ntp Debian Ubuntu

References

  • article
    https://access.redhat.com/security/updates/classification/#moderate
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1716665
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=1811627
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2020/rhsa-2020_2663.json
  • report
    https://access.redhat.com/security/cve/CVE-2020-11868
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2020-11868
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2020-11868
  • article
    http://support.ntp.org/bin/view/Main/NtpBug3592
  • report
    https://access.redhat.com/security/cve/CVE-2020-13817
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2020-13817
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2020-13817
  • article
    http://support.ntp.org/bin/view/Main/NtpBug3596