CVE-2015-7705

CRITICAL

NTP 4.2.0-4.2.8 - Denial of Service via Rate Limiting Bypass

Title source: llm

Description

The rate limiting feature in NTP 4.x before 4.2.8p4 and 4.3.x before 4.3.77 allows remote attackers to have unspecified impact via a large number of crafted requests.

References (36)

Core 36

Core References

Mailing List vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html

Third Party Advisory, US Government Resource third-party-advisory x_refsource_cert-vn

https://www.kb.cert.org/vuls/id/718152

Vendor Advisory vendor-advisory x_refsource_ubuntu

http://www.ubuntu.com/usn/USN-2783-1

Mailing List vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.html

Third Party Advisory, VDB Entry vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/77284

Third Party Advisory x_refsource_confirm

https://support.citrix.com/article/CTX220112

Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack

http://www.securitytracker.com/id/1033951

Release Notes, Vendor Advisory x_refsource_confirm

http://support.ntp.org/bin/view/Main/SecurityNotice#October_2015_NTP_4_2_8p4_Securit

Mailing List vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.html

Not Applicable x_refsource_misc

https://www.cs.bu.edu/~goldbe/NTPattack.html

Mailing List vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html

Technical Description x_refsource_misc

https://eprint.iacr.org/2015/1020.pdf

Third Party Advisory, VDB Entry x_refsource_confirm

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05270839

Issue Tracking, Third Party Advisory, VDB Entry x_refsource_confirm

https://bugzilla.redhat.com/show_bug.cgi?id=1274184

Vendor Advisory x_refsource_confirm

http://support.ntp.org/bin/view/Main/NtpBug2901

Mailing List vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.html

Third Party Advisory, VDB Entry vendor-advisory x_refsource_gentoo

https://security.gentoo.org/glsa/201607-15

Third Party Advisory x_refsource_confirm

https://security.netapp.com/advisory/ntap-20171004-0001/

Exploit, Third Party Advisory x_refsource_misc

http://packetstormsecurity.com/files/134137/Slackware-Security-Advisory-ntp-Updates.html

Mailing List vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00052.html

Various Sources vendor-advisory x_refsource_cisco

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151021-ntp

Mailing List vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00001.html

Various Sources x_refsource_confirm

https://bto.bluecoat.com/security-advisory/sa103

Mailing List vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00037.html

Mailing List vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00020.html

Mailing List vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-updates/2015-11/msg00093.html

Mailing List vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00034.html

Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq

http://www.securityfocus.com/archive/1/536796/100/0/threaded

Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq

http://www.securityfocus.com/archive/1/archive/1/536796/100/100/threaded

Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq

http://www.securityfocus.com/archive/1/536737/100/0/threaded

Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq

http://www.securityfocus.com/archive/1/archive/1/536737/100/100/threaded

Third Party Advisory x_refsource_confirm

https://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdf

Third Party Advisory, US Government Resource x_refsource_misc

https://us-cert.cisa.gov/ics/advisories/icsa-21-103-11

Vendor Advisory x_refsource_confirm

https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf

Third Party Advisory, US Government Resource x_refsource_misc

https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11

Various Sources x_refsource_misc

https://www.arista.com/en/support/advisories-notices/security-advisories/1212-security-advisory-0016

Scores

CVSS v3 9.8

EPSS 0.1737

EPSS Percentile 95.1%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE

CWE-20

Status published

Products (12)

citrix/xenserver 6.0.2

citrix/xenserver 6.2.0

citrix/xenserver 6.5

citrix/xenserver 7.0

netapp/clustered_data_ontap

netapp/data_ontap

netapp/oncommand_performance_manager

netapp/oncommand_unified_manager

ntp/ntp 4.2.8 (17 CPE variants)

ntp/ntp 4.2.0 - 4.2.8

... and 2 more

Published Aug 07, 2017

Tracked Since Feb 18, 2026