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01 Record

CVE-2015-7852

ntpq in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to cause a denial of service (crash) via crafted mode 6 response packets.

UnratedPUBLISHEDCNA: mitre

CNA base scoreUnratedNo CNA CVSS vector

02 Description

ntpq in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to cause a denial of service (crash) via crafted mode 6 response packets.

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 12.28% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 95.8% of scored records. A rank, not a probability.
NVD base score: 5.9 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-06-17.
Red Hat severity: Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2017-08-07 20:00Z9 YR AGO

Last updated

2024-08-06 07:59Z2 YR AGO

Reserved

2015-10-16

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-20Improper Input ValidationClass
CWE-193Off-by-one ErrorBase

Data version

5.1

Document digest

ba55246b1d912d9a3e16048f6891c696c2abccf6bb086bc72ab9349e81f157f1

05 Affected products

VendorProductVersionsPlatforms

debiandebian_linuxNot specified—

netappclustered_data_ontapNot specified—

netappdata_ontapNot specified—

netapponcommand_balanceNot specified—

netapponcommand_performance_managerNot specified—

netapponcommand_unified_managerNot specified—

ntpntpNot specified—

oraclelinuxNot specified—

redhatenterprise_linuxNot specified—

redhatenterprise_linux_desktopNot specified—

redhatenterprise_linux_serverNot specified—

redhatenterprise_linux_server_ausNot specified—

redhatenterprise_linux_server_eusNot specified—

redhatenterprise_linux_server_tusNot specified—

redhatenterprise_linux_workstationNot specified—

06 References

www.oracle.comhttp://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.htmlx_refsource_CONFIRM
support.ntp.orghttp://support.ntp.org/bin/view/Main/NtpBug2919x_refsource_CONFIRM
www.securityfocus.com77288http://www.securityfocus.com/bid/77288vdb-entryx_refsource_BID
rhn.redhat.comRHSA-2016:2583http://rhn.redhat.com/errata/RHSA-2016-2583.htmlvendor-advisoryx_refsource_REDHAT
www.securitytracker.com1033951http://www.securitytracker.com/id/1033951vdb-entryx_refsource_SECTRACK
rhn.redhat.comRHSA-2016:0780http://rhn.redhat.com/errata/RHSA-2016-0780.htmlvendor-advisoryx_refsource_REDHAT
www.debian.orgDSA-3388http://www.debian.org/security/2015/dsa-3388vendor-advisoryx_refsource_DEBIAN
security.gentoo.orgGLSA-201607-15https://security.gentoo.org/glsa/201607-15vendor-advisoryx_refsource_GENTOO
security.netapp.comhttps://security.netapp.com/advisory/ntap-20171004-0001/x_refsource_CONFIRM

07 Fixed in

Debian 11

ntp
Fixed in 1:4.2.8p4+dfsg-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 14.04 LTS

ntp
Fixed in 1:4.2.6.p5+dfsg-3ubuntu2.14.04.5

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.