All errata/sisyphus/ALT-PU-2017-2335-2
ALT-PU-2017-2335-2

Package update ntp in branch sisyphus

Version4.2.8p10-alt1
Task#188931
Published2026-02-04
Max severityCRITICAL
Severity:

Closed issues (61)

BDU:2017-02016
HIGH7.5

Уязвимость параметра datalen драйвера refclock протокола сетевого времени NTP, позволяющая нарушителю выполнить произвольный код или вызвать отказ в обслуживании

Published: 2017-09-08Modified: 2021-03-23
CVSS 2.0HIGH 7.5
CVSS:2.0/AV:N/AC:L/Au:N/C:P/I:P/A:P
References
BDU:2017-02017
HIGH7.5

Уязвимость службы ограничения скорости протокола сетевого времени NTP, позволяющая нарушителю вызвать частичное нарушение конфиденциальности, целостности и доступности защищаемой информации

Published: 2017-09-08Modified: 2021-03-23
CVSS 2.0HIGH 7.5
CVSS:2.0/AV:N/AC:L/Au:N/C:P/I:P/A:P
References
BDU:2017-02039
HIGH7.8

Уязвимость функции CRYPTO_ASSOC демон-программы ntpd протокола сетевого времени NTP, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2017-09-13Modified: 2021-03-23
CVSS 2.0HIGH 7.8
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:C
References
BDU:2019-00217
MEDIUM4.3

Уязвимость демона ntpd реализации протокола синхронизации времени NTP, связанная с ошибками управления ключами, позволяющая нарушителю оказать воздействие на целостность данных

Published: 2019-01-22Modified: 2023-11-21
CVSS 3.xMEDIUM 4.3
CVSS:3.x/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CVSS 2.0LOW 3.5
CVSS:2.0/AV:N/AC:M/Au:S/C:N/I:P/A:N
References
BDU:2021-04147
MEDIUM6.5

Уязвимость опции unpeer реализации протокола синхронизации времени NTP, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2021-08-20
CVSS 3.xMEDIUM 6.5
CVSS:3.x/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0MEDIUM 6.8
CVSS:2.0/AV:N/AC:L/Au:S/C:N/I:N/A:C
References
BDU:2021-04148
MEDIUM6.5

Уязвимость реализации протокола синхронизации времени NTP, существующая из-за недостаточной проверки входных данных, позволяющая нарушителю вызвать отказ в обслуживании

Published: 2021-08-20
CVSS 3.xMEDIUM 6.5
CVSS:3.x/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0MEDIUM 6.8
CVSS:2.0/AV:N/AC:L/Au:S/C:N/I:N/A:C
References
BDU:2021-04149
HIGH7.8

Уязвимость драйвера Datum Programmable Time Server (DPTS) refclock реализации протокола синхронизации времени NTP, позволяющая нарушителю вызвать отказ в работе демона ntpd с помощью созданного устройства /dev/datum

Published: 2021-08-20
CVSS 3.xHIGH 7.8
CVSS:3.x/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0MEDIUM 6.8
CVSS:2.0/AV:L/AC:L/Au:S/C:C/I:C/A:C
References
CVE-2014-9750
MEDIUM5.8

ntp_crypto.c in ntpd in NTP 4.x before 4.2.8p1, when Autokey Authentication is enabled, allows remote attackers to obtain sensitive information from process memory or cause a denial of service (daemon crash) via a packet containing an extension field with an invalid value for the length of its value field.

Published: 2015-10-06Modified: 2025-04-12
CVSS 2.0MEDIUM 5.8
CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:N/A:P
References
CVE-2014-9751
MEDIUM6.8

The read_network_packet function in ntp_io.c in ntpd in NTP 4.x before 4.2.8p1 on Linux and OS X does not properly determine whether a source IP address is an IPv6 loopback address, which makes it easier for remote attackers to spoof restricted packets, and read or write to the runtime state, by leveraging the ability to reach the ntpd machine's network interface with a packet from the ::1 address.

Published: 2015-10-06Modified: 2025-04-12
CVSS 2.0MEDIUM 6.8
CVSS:2.0/AV:N/AC:M/Au:N/C:P/I:P/A:P
References
CVE-2015-5146
MEDIUM5.3

ntpd in ntp before 4.2.8p3 with remote configuration enabled allows remote authenticated users with knowledge of the configuration password and access to a computer entrusted to perform remote configuration to cause a denial of service (service crash) via a NULL byte in a crafted configuration directive packet.

Published: 2017-08-24Modified: 2025-04-20
CVSS 2.0LOW 3.5
CVSS:2.0/AV:N/AC:M/Au:S/C:N/I:N/A:P
CVSS 3.xMEDIUM 5.3
CVSS:3.x/CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
References
CVE-2015-5300
HIGH7.5

The panic_gate check in NTP before 4.2.8p5 is only re-enabled after the first change to the system clock that was greater than 128 milliseconds by default, which allows remote attackers to set NTP to an arbitrary time when started with the -g option, or to alter the time by up to 900 seconds otherwise by responding to an unspecified number of requests from trusted sources, and leveraging a resulting denial of service (abort and restart).

Published: 2017-07-21Modified: 2025-04-20
CVSS 2.0MEDIUM 5.0
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS 3.xHIGH 7.5
CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2015-7691
HIGH7.5

The crypto_xmit function in ntpd 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 packets containing particular autokey operations. NOTE: This vulnerability exists due to an incomplete fix for CVE-2014-9750.

Published: 2017-08-07Modified: 2025-04-20
CVSS 2.0MEDIUM 5.0
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS 3.xHIGH 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2015-7692
HIGH7.5

The crypto_xmit function in ntpd 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). NOTE: This vulnerability exists due to an incomplete fix for CVE-2014-9750.

Published: 2017-08-07Modified: 2025-04-20
CVSS 2.0MEDIUM 5.0
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS 3.xHIGH 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2015-7701
HIGH7.5

Memory leak in the CRYPTO_ASSOC function in ntpd 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 (memory consumption).

Published: 2017-08-07Modified: 2025-04-20
CVSS 2.0MEDIUM 5.0
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS 3.xHIGH 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2015-7702
MEDIUM6.5

The crypto_xmit function in ntpd 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). NOTE: This vulnerability exists due to an incomplete fix for CVE-2014-9750.

Published: 2017-08-07Modified: 2025-04-20
CVSS 2.0MEDIUM 4.0
CVSS:2.0/AV:N/AC:L/Au:S/C:N/I:N/A:P
CVSS 3.xMEDIUM 6.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
CVE-2015-7703
HIGH7.5

The "pidfile" or "driftfile" directives in NTP ntpd 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77, when ntpd is configured to allow remote configuration, allows remote attackers with an IP address that is allowed to send configuration requests, and with knowledge of the remote configuration password to write to arbitrary files via the :config command.

Published: 2017-07-24Modified: 2025-04-20
CVSS 2.0MEDIUM 4.3
CVSS:2.0/AV:N/AC:M/Au:N/C:N/I:P/A:N
CVSS 3.xHIGH 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
References
CVE-2015-7704
HIGH7.5

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.

Published: 2017-08-07Modified: 2025-04-20
CVSS 2.0MEDIUM 5.0
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS 3.xHIGH 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2015-7705
CRITICAL9.8

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.

Published: 2017-08-07Modified: 2025-04-20
CVSS 2.0HIGH 7.5
CVSS:2.0/AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS 3.xCRITICAL 9.8
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
CVE-2015-7848
HIGH7.5

An integer overflow can occur in NTP-dev.4.3.70 leading to an out-of-bounds memory copy operation when processing a specially crafted private mode packet. The crafted packet needs to have the correct message authentication code and a valid timestamp. When processed by the NTP daemon, it leads to an immediate crash.

Published: 2017-01-06Modified: 2025-05-23
CVSS 2.0MEDIUM 5.0
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS 3.xHIGH 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2015-7849
HIGH8.8

Use-after-free vulnerability in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote authenticated users to possibly execute arbitrary code or cause a denial of service (crash) via crafted packets.

Published: 2017-08-07Modified: 2025-04-20
CVSS 2.0MEDIUM 6.5
CVSS:2.0/AV:N/AC:L/Au:S/C:P/I:P/A:P
CVSS 3.xHIGH 8.8
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
CVE-2015-7850
MEDIUM6.5

ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote authenticated users to cause a denial of service (infinite loop or crash) by pointing the key file at the log file.

Published: 2017-08-07Modified: 2025-04-20
CVSS 2.0MEDIUM 4.0
CVSS:2.0/AV:N/AC:L/Au:S/C:N/I:N/A:P
CVSS 3.xMEDIUM 6.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
CVE-2015-7852
MEDIUM5.9

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.

Published: 2017-08-07Modified: 2025-04-20
CVSS 2.0MEDIUM 4.3
CVSS:2.0/AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSS 3.xMEDIUM 5.9
CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2015-7853
CRITICAL9.8

The datalen parameter in the refclock driver in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to execute arbitrary code or cause a denial of service (crash) via a negative input value.

Published: 2017-08-07Modified: 2025-04-20
CVSS 2.0HIGH 7.5
CVSS:2.0/AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS 3.xCRITICAL 9.8
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
CVE-2015-7854
HIGH8.8

Buffer overflow in the password management functionality in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote authenticated users to cause a denial of service (daemon crash) or possibly execute arbitrary code via a crafted key file.

Published: 2017-08-07Modified: 2025-04-20
CVSS 2.0MEDIUM 6.5
CVSS:2.0/AV:N/AC:L/Au:S/C:P/I:P/A:P
CVSS 3.xHIGH 8.8
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
CVE-2015-7855
MEDIUM6.5

The decodenetnum function in ntpd 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 (assertion failure) via a 6 or mode 7 packet containing a long data value.

Published: 2017-08-07Modified: 2025-04-20
CVSS 2.0MEDIUM 4.0
CVSS:2.0/AV:N/AC:L/Au:S/C:N/I:N/A:P
CVSS 3.xMEDIUM 6.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
CVE-2015-7973
MEDIUM6.5

NTP before 4.2.8p6 and 4.3.x before 4.3.90, when configured in broadcast mode, allows man-in-the-middle attackers to conduct replay attacks by sniffing the network.

Published: 2017-01-30Modified: 2025-04-20
CVSS 2.0MEDIUM 5.8
CVSS:2.0/AV:N/AC:M/Au:N/C:N/I:P/A:P
CVSS 3.xMEDIUM 6.5
CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
References
CVE-2015-7974
HIGH7.7

NTP 4.x before 4.2.8p6 and 4.3.x before 4.3.90 do not verify peer associations of symmetric keys when authenticating packets, which might allow remote attackers to conduct impersonation attacks via an arbitrary trusted key, aka a "skeleton key."

Published: 2016-01-26Modified: 2025-04-12
CVSS 2.0MEDIUM 4.0
CVSS:2.0/AV:N/AC:L/Au:S/C:N/I:P/A:N
CVSS 3.xHIGH 7.7
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
References
CVE-2015-7975
MEDIUM6.2

The nextvar function in NTP before 4.2.8p6 and 4.3.x before 4.3.90 does not properly validate the length of its input, which allows an attacker to cause a denial of service (application crash).

Published: 2017-01-30Modified: 2025-04-20
CVSS 2.0LOW 2.1
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:P
CVSS 3.xMEDIUM 6.2
CVSS:3.x/CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2015-7976
MEDIUM4.3

The ntpq saveconfig command in NTP 4.1.2, 4.2.x before 4.2.8p6, 4.3, 4.3.25, 4.3.70, and 4.3.77 does not properly filter special characters, which allows attackers to cause unspecified impact via a crafted filename.

Published: 2017-01-30Modified: 2025-04-20
CVSS 2.0MEDIUM 4.0
CVSS:2.0/AV:N/AC:L/Au:S/C:N/I:P/A:N
CVSS 3.xMEDIUM 4.3
CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
References
CVE-2015-7977
MEDIUM5.9

ntpd in NTP before 4.2.8p6 and 4.3.x before 4.3.90 allows remote attackers to cause a denial of service (NULL pointer dereference) via a ntpdc reslist command.

Published: 2017-01-30Modified: 2025-04-20
CVSS 2.0MEDIUM 4.3
CVSS:2.0/AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSS 3.xMEDIUM 5.9
CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2015-7978
HIGH7.5

NTP before 4.2.8p6 and 4.3.0 before 4.3.90 allows a remote attackers to cause a denial of service (stack exhaustion) via an ntpdc relist command, which triggers recursive traversal of the restriction list.

Published: 2017-01-30Modified: 2025-04-20
CVSS 2.0MEDIUM 5.0
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS 3.xHIGH 7.5
CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2015-7979
HIGH7.5

NTP before 4.2.8p6 and 4.3.x before 4.3.90 allows remote attackers to cause a denial of service (client-server association tear down) by sending broadcast packets with invalid authentication to a broadcast client.

Published: 2017-01-30Modified: 2025-04-20
CVSS 2.0MEDIUM 5.0
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS 3.xHIGH 7.5
CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2015-8138
MEDIUM5.3

NTP before 4.2.8p6 and 4.3.x before 4.3.90 allows remote attackers to bypass the origin timestamp validation via a packet with an origin timestamp set to zero.

Published: 2017-01-30Modified: 2025-04-20
CVSS 2.0MEDIUM 5.0
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:P/A:N
CVSS 3.xMEDIUM 5.3
CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
References
CVE-2015-8139
MEDIUM5.3

ntpq in NTP before 4.2.8p7 allows remote attackers to obtain origin timestamps and then impersonate peers via unspecified vectors.

Published: 2017-01-30Modified: 2025-04-20
CVSS 2.0MEDIUM 5.0
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:P/A:N
CVSS 3.xMEDIUM 5.3
CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
References
CVE-2015-8140
MEDIUM4.8

The ntpq protocol in NTP before 4.2.8p7 allows remote attackers to conduct replay attacks by sniffing the network.

Published: 2017-01-30Modified: 2025-04-20
CVSS 2.0MEDIUM 5.8
CVSS:2.0/AV:N/AC:M/Au:N/C:N/I:P/A:P
CVSS 3.xMEDIUM 4.8
CVSS:3.x/CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
References
CVE-2015-8158
MEDIUM5.9

The getresponse function in ntpq in NTP versions before 4.2.8p9 and 4.3.x before 4.3.90 allows remote attackers to cause a denial of service (infinite loop) via crafted packets with incorrect values.

Published: 2017-01-30Modified: 2025-04-20
CVSS 2.0MEDIUM 4.3
CVSS:2.0/AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSS 3.xMEDIUM 5.9
CVSS:3.x/CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2016-1547
MEDIUM5.3

An off-path attacker can cause a preemptible client association to be demobilized in NTP 4.2.8p4 and earlier and NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92 by sending a crypto NAK packet to a victim client with a spoofed source address of an existing associated peer. This is true even if authentication is enabled.

Published: 2017-01-06Modified: 2025-04-20
CVSS 2.0MEDIUM 5.0
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS 3.xMEDIUM 5.3
CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
References
CVE-2016-2516
MEDIUM5.3

NTP before 4.2.8p7 and 4.3.x before 4.3.92, when mode7 is enabled, allows remote attackers to cause a denial of service (ntpd abort) by using the same IP address multiple times in an unconfig directive.

Published: 2017-01-30Modified: 2025-04-20
CVSS 2.0HIGH 7.1
CVSS:2.0/AV:N/AC:M/Au:N/C:N/I:N/A:C
CVSS 3.xMEDIUM 5.3
CVSS:3.x/CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
References
CVE-2016-2517
MEDIUM5.3

NTP before 4.2.8p7 and 4.3.x before 4.3.92 allows remote attackers to cause a denial of service (prevent subsequent authentication) by leveraging knowledge of the controlkey or requestkey and sending a crafted packet to ntpd, which changes the value of trustedkey, controlkey, or requestkey. NOTE: this vulnerability exists because of a CVE-2016-2516 regression.

Published: 2017-01-30Modified: 2025-04-20
CVSS 2.0MEDIUM 4.9
CVSS:2.0/AV:N/AC:H/Au:S/C:N/I:N/A:C
CVSS 3.xMEDIUM 5.3
CVSS:3.x/CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
References
CVE-2016-2518
MEDIUM5.3

The MATCH_ASSOC function in NTP before version 4.2.8p9 and 4.3.x before 4.3.92 allows remote attackers to cause an out-of-bounds reference via an addpeer request with a large hmode value.

Published: 2017-01-30Modified: 2025-04-20
CVSS 2.0MEDIUM 5.0
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS 3.xMEDIUM 5.3
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
References
CVE-2016-2519
MEDIUM5.9

ntpd in NTP before 4.2.8p7 and 4.3.x before 4.3.92 allows remote attackers to cause a denial of service (ntpd abort) by a large request data value, which triggers the ctl_getitem function to return a NULL value.

Published: 2017-01-30Modified: 2025-04-20
CVSS 2.0MEDIUM 4.9
CVSS:2.0/AV:N/AC:H/Au:S/C:N/I:N/A:C
CVSS 3.xMEDIUM 5.9
CVSS:3.x/CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2016-4953
HIGH7.5

ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (ephemeral-association demobilization) by sending a spoofed crypto-NAK packet with incorrect authentication data at a certain time.

Published: 2016-07-05Modified: 2025-04-12
CVSS 2.0MEDIUM 5.0
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS 3.xHIGH 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2016-4954
HIGH7.5

The process_packet function in ntp_proto.c in ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (peer-variable modification) by sending spoofed packets from many source IP addresses in a certain scenario, as demonstrated by triggering an incorrect leap indication.

Published: 2016-07-05Modified: 2025-04-12
CVSS 2.0MEDIUM 5.0
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS 3.xHIGH 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2016-4955
MEDIUM5.9

ntpd in NTP 4.x before 4.2.8p8, when autokey is enabled, allows remote attackers to cause a denial of service (peer-variable clearing and association outage) by sending (1) a spoofed crypto-NAK packet or (2) a packet with an incorrect MAC value at a certain time.

Published: 2016-07-05Modified: 2025-04-12
CVSS 2.0MEDIUM 4.3
CVSS:2.0/AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSS 3.xMEDIUM 5.9
CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2016-4956
MEDIUM5.3

ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (interleaved-mode transition and time change) via a spoofed broadcast packet. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-1548.

Published: 2016-07-05Modified: 2025-04-12
CVSS 2.0MEDIUM 5.0
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS 3.xMEDIUM 5.3
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
References
CVE-2016-7426
HIGH7.5

NTP before 4.2.8p9 rate limits responses received from the configured sources when rate limiting for all associations is enabled, which allows remote attackers to cause a denial of service (prevent responses from the sources) by sending responses with a spoofed source address.

Published: 2017-01-13Modified: 2025-04-20
CVSS 2.0MEDIUM 4.3
CVSS:2.0/AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSS 3.xHIGH 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2016-7429
LOW3.7

NTP before 4.2.8p9 changes the peer structure to the interface it receives the response from a source, which allows remote attackers to cause a denial of service (prevent communication with a source) by sending a response for a source to an interface the source does not use.

Published: 2017-01-13Modified: 2025-04-20
CVSS 2.0MEDIUM 4.3
CVSS:2.0/AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSS 3.xLOW 3.7
CVSS:3.x/CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
References
CVE-2016-7433
MEDIUM5.3

NTP before 4.2.8p9 does not properly perform the initial sync calculations, which allows remote attackers to unspecified impact via unknown vectors, related to a "root distance that did not include the peer dispersion."

Published: 2017-01-13Modified: 2025-04-20
CVSS 2.0MEDIUM 5.0
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS 3.xMEDIUM 5.3
CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
References
CVE-2016-7434
HIGH7.5

The read_mru_list function in NTP before 4.2.8p9 allows remote attackers to cause a denial of service (crash) via a crafted mrulist query.

Published: 2017-01-13Modified: 2025-04-20
CVSS 2.0MEDIUM 4.3
CVSS:2.0/AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSS 3.xHIGH 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2016-9310
MEDIUM6.5

The control mode (mode 6) functionality in ntpd in NTP before 4.2.8p9 allows remote attackers to set or unset traps via a crafted control mode packet.

Published: 2017-01-13Modified: 2025-04-20
CVSS 2.0MEDIUM 6.4
CVSS:2.0/AV:N/AC:L/Au:N/C:P/I:N/A:P
CVSS 3.xMEDIUM 6.5
CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
References
CVE-2016-9311
MEDIUM5.9

ntpd in NTP before 4.2.8p9, when the trap service is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted packet.

Published: 2017-01-13Modified: 2025-04-20
CVSS 2.0HIGH 7.1
CVSS:2.0/AV:N/AC:M/Au:N/C:N/I:N/A:C
CVSS 3.xMEDIUM 5.9
CVSS:3.x/CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2017-6451
HIGH7.8

The mx4200_send function in the legacy MX4200 refclock in NTP before 4.2.8p10 and 4.3.x before 4.3.94 does not properly handle the return value of the snprintf function, which allows local users to execute arbitrary code via unspecified vectors, which trigger an out-of-bounds memory write.

Published: 2017-03-27Modified: 2025-04-20
CVSS 2.0MEDIUM 4.6
CVSS:2.0/AV:L/AC:L/Au:N/C:P/I:P/A:P
CVSS 3.xHIGH 7.8
CVSS:3.x/CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
CVE-2017-6452
HIGH7.8

Stack-based buffer overflow in the Windows installer for NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows local users to have unspecified impact via an application path on the command line.

Published: 2017-03-27Modified: 2025-04-20
CVSS 2.0MEDIUM 4.6
CVSS:2.0/AV:L/AC:L/Au:N/C:P/I:P/A:P
CVSS 3.xHIGH 7.8
CVSS:3.x/CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
CVE-2017-6455
HIGH7.0

NTP before 4.2.8p10 and 4.3.x before 4.3.94, when using PPSAPI, allows local users to gain privileges via a DLL in the PPSAPI_DLLS environment variable.

Published: 2017-03-27Modified: 2025-04-20
CVSS 2.0MEDIUM 4.4
CVSS:2.0/AV:L/AC:M/Au:N/C:P/I:P/A:P
CVSS 3.xHIGH 7.0
CVSS:3.x/CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
References
CVE-2017-6458
HIGH8.8

Multiple buffer overflows in the ctl_put* functions in NTP before 4.2.8p10 and 4.3.x before 4.3.94 allow remote authenticated users to have unspecified impact via a long variable.

Published: 2017-03-27Modified: 2025-04-20
CVSS 2.0MEDIUM 6.5
CVSS:2.0/AV:N/AC:L/Au:S/C:P/I:P/A:P
CVSS 3.xHIGH 8.8
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
CVE-2017-6459
MEDIUM5.5

The Windows installer for NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows local users to have unspecified impact via vectors related to an argument with multiple null bytes.

Published: 2017-03-27Modified: 2025-04-20
CVSS 2.0LOW 2.1
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:P
CVSS 3.xMEDIUM 5.5
CVSS:3.x/CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
CVE-2017-6460
HIGH8.8

Stack-based buffer overflow in the reslist function in ntpq in NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows remote servers have unspecified impact via a long flagstr variable in a restriction list response.

Published: 2017-03-27Modified: 2025-04-20
CVSS 2.0MEDIUM 6.5
CVSS:2.0/AV:N/AC:L/Au:S/C:P/I:P/A:P
CVSS 3.xHIGH 8.8
CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
CVE-2017-6462
HIGH7.8

Buffer overflow in the legacy Datum Programmable Time Server (DPTS) refclock driver in NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows local users to have unspecified impact via a crafted /dev/datum device.

Published: 2017-03-27Modified: 2025-04-20
CVSS 2.0MEDIUM 4.6
CVSS:2.0/AV:L/AC:L/Au:N/C:P/I:P/A:P
CVSS 3.xHIGH 7.8
CVSS:3.x/CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
CVE-2017-6463
MEDIUM6.5

NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows remote authenticated users to cause a denial of service (daemon crash) via an invalid setting in a :config directive, related to the unpeer option.

Published: 2017-03-27Modified: 2025-04-20
CVSS 2.0MEDIUM 4.0
CVSS:2.0/AV:N/AC:L/Au:S/C:N/I:N/A:P
CVSS 3.xMEDIUM 6.5
CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
CVE-2017-6464
MEDIUM6.5

NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows remote attackers to cause a denial of service (ntpd crash) via a malformed mode configuration directive.

Published: 2017-03-27Modified: 2025-04-20
CVSS 2.0MEDIUM 4.0
CVSS:2.0/AV:N/AC:L/Au:S/C:N/I:N/A:P
CVSS 3.xMEDIUM 6.5
CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
CVE-2018-7170
MEDIUM5.3

ntpd in ntp 4.2.x before 4.2.8p7 and 4.3.x before 4.3.92 allows authenticated users that know the private symmetric key to create arbitrarily-many ephemeral associations in order to win the clock selection of ntpd and modify a victim's clock via a Sybil attack. This issue exists because of an incomplete fix for CVE-2016-1549.

Published: 2018-03-06Modified: 2025-01-14
CVSS 2.0LOW 3.5
CVSS:2.0/AV:N/AC:M/Au:S/C:N/I:P/A:N
CVSS 3.xMEDIUM 5.3
CVSS:3.x/CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
References