high
7.5
CWE
20
Advisory Published
CVE Published
Updated

CVE-2015-7704: Input Validation

First published: Tue Oct 13 2015(Updated: )

The ntpd client in NTP 4.x before 4.2.8p4 and 4.3.x before 4.3.77 allows remote attackers to cause a denial of service via a number of crafted "KOD" messages.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
redhat/ntp<4.2.8
4.2.8
NTP ntp>=4.2.0<4.2.8
NTP ntp>=4.3.0<4.3.77
NTP ntp=4.2.8
NTP ntp=4.2.8-p1
NTP ntp=4.2.8-p1-beta1
NTP ntp=4.2.8-p1-beta2
NTP ntp=4.2.8-p1-beta3
NTP ntp=4.2.8-p1-beta4
NTP ntp=4.2.8-p1-beta5
NTP ntp=4.2.8-p1-rc1
NTP ntp=4.2.8-p1-rc2
NTP ntp=4.2.8-p2
NTP ntp=4.2.8-p2-rc1
NTP ntp=4.2.8-p2-rc2
NTP ntp=4.2.8-p2-rc3
NTP ntp=4.2.8-p3
NTP ntp=4.2.8-p3-rc1
NTP ntp=4.2.8-p3-rc2
NTP ntp=4.2.8-p3-rc3
Debian GNU/Linux=7.0
Debian GNU/Linux=8.0
Debian GNU/Linux=9.0
NetApp OnCommand Performance Manager
NetApp OnCommand Unified Manager
NetApp Clustered Data ONTAP
NetApp Data ONTAP 7-Mode
redhat enterprise Linux desktop=6.0
redhat enterprise Linux desktop=7.0
redhat enterprise Linux server=6.0
redhat enterprise Linux server=7.0
redhat enterprise Linux server aus=6.5
redhat enterprise Linux server aus=6.6
redhat enterprise Linux server aus=7.3
redhat enterprise Linux server aus=7.4
redhat enterprise Linux server aus=7.6
redhat enterprise Linux server aus=7.7
redhat enterprise Linux server eus=6.5
redhat enterprise Linux server eus=6.6
redhat enterprise Linux server eus=6.7
redhat enterprise Linux server eus=7.1
redhat enterprise Linux server eus=7.3
redhat enterprise Linux server eus=7.4
redhat enterprise Linux server eus=7.5
redhat enterprise Linux server eus=7.6
redhat enterprise Linux server eus=7.7
redhat enterprise Linux server tus=6.5
redhat enterprise Linux server tus=6.6
redhat enterprise Linux server tus=7.3
redhat enterprise Linux server tus=7.6
redhat enterprise Linux server tus=7.7
redhat enterprise Linux workstation=6.0
redhat enterprise Linux workstation=7.0
McAfee Enterprise Security Manager<10.4.0
McAfee Enterprise Security Manager>=11.0.0<11.2.0
XenServer=6.0.2
XenServer=6.2.0
XenServer=6.5
XenServer=7.0

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2015-7704?

    CVE-2015-7704 has a severity rating that indicates it can lead to denial of service situations under specific conditions.

  • How do I fix CVE-2015-7704?

    To fix CVE-2015-7704, update NTP to versions higher than 4.2.8p4 or 4.3.77.

  • Which versions of NTP are affected by CVE-2015-7704?

    CVE-2015-7704 affects NTP versions prior to 4.2.8p4 and those in the 4.3.x branch before 4.3.77.

  • What type of attacks does CVE-2015-7704 enable?

    CVE-2015-7704 enables remote attackers to perform denial of service attacks via crafted Kiss-of-Death messages.

  • Can CVE-2015-7704 be exploited remotely?

    Yes, CVE-2015-7704 can be exploited remotely by sending specially crafted messages to vulnerable NTP clients.

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