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ntp: ntpd accepts unauthenticated packets with symmetric key crypto

🗓️ 21 Jul 2015 10:15:04Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 6 Views

The network time protocol daemon accepts packets with no authentication when using symmetric keys.

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Security Bulletin: Vulnerabilities in NTP affect IBM Security Network Protection (CVE-2015-1798, CVE-2015-1799, and CVE-2015-3405)
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16 Jun 201821:38
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Tenable Nessus
Mac OS X < 10.10.4 Multiple Vulnerabilities
12 Oct 201500:00
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux6ppc64ntp0:4.2.6p5-5.el6ntp-0:4.2.6p5-5.el6.ppc64.rpm
Red Hat Enterprise Linux6s390xntp0:4.2.6p5-5.el6ntp-0:4.2.6p5-5.el6.s390x.rpm
Red Hat Enterprise Linux6x86_64ntp0:4.2.6p5-5.el6ntp-0:4.2.6p5-5.el6.x86_64.rpm
Red Hat Enterprise Linux6anyntp0:4.2.6p5-5.el6.i686ntp-0:4.2.6p5-5.el6.i686.noarch.rpm
Red Hat Enterprise Linux6ppc64ntp-debuginfo0:4.2.6p5-5.el6ntp-debuginfo-0:4.2.6p5-5.el6.ppc64.rpm
Red Hat Enterprise Linux6s390xntp-debuginfo0:4.2.6p5-5.el6ntp-debuginfo-0:4.2.6p5-5.el6.s390x.rpm
Red Hat Enterprise Linux6x86_64ntp-debuginfo0:4.2.6p5-5.el6ntp-debuginfo-0:4.2.6p5-5.el6.x86_64.rpm
Red Hat Enterprise Linux6anyntp-debuginfo0:4.2.6p5-5.el6.i686ntp-debuginfo-0:4.2.6p5-5.el6.i686.noarch.rpm
Red Hat Enterprise Linux6anyntp-doc0:4.2.6p5-5.el6.noarchntp-doc-0:4.2.6p5-5.el6.noarch.noarch.rpm
Red Hat Enterprise Linux6ppc64ntp-perl0:4.2.6p5-5.el6ntp-perl-0:4.2.6p5-5.el6.ppc64.rpm
Rows per page

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25 Jun 2026 10:43Current
6.6Medium risk
Vulners AI Score6.6
CVSS 21.8
EPSS0.02219
6