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CVSS: 7.5EPSS: 33%CPEs: 92EXPL: 0

21 Dec 2016 — 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. NTP en versiones anteriores a 4.2.8p9 limita la clasificación de respuestas recibidas desde las fuentes configuradas cuando la limitación de clasificación para todas las asociaciones está habilitado, lo que permite a atacantes remotos... • http://nwtime.org/ntp428p9_release • CWE-400: Uncontrolled Resource Consumption •

CVSS: 5.3EPSS: 25%CPEs: 1EXPL: 0

21 Jul 2016 — ntpq in NTP before 4.2.8p7 allows remote attackers to obtain origin timestamps and then impersonate peers via unspecified vectors. ntpq en NTP en versiones anteriores a 4.2.8p7 permite a atacantes remotos obtener timestamps de origen y luego suplantar a sus pares a través de vectores no especificados. Multiple vulnerabilities have been found in NTP, the worst of which could lead to Denial of Service. Versions less than 4.2.8_p8 are affected. • http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00059.html • CWE-284: Improper Access Control •

CVSS: 5.8EPSS: 32%CPEs: 1EXPL: 0

21 Jul 2016 — The ntpq protocol in NTP before 4.2.8p7 allows remote attackers to conduct replay attacks by sniffing the network. El protocolo ntpq en NTP en versiones anteriores a 4.2.8p7 permite a los atacantes remotos realizar ataques de repetición para rastrear la red. Multiple vulnerabilities have been found in NTP, the worst of which could lead to Denial of Service. Versions less than 4.2.8_p8 are affected. • http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00059.html • CWE-284: Improper Access Control •

CVSS: 7.5EPSS: 19%CPEs: 41EXPL: 0

06 Jun 2016 — 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. ntpd en NTP 4.x en versiones anteriores a 4.2.8p8 permite a atacantes remotos provocar una denegación de servicio (desmovilización de asociación efímera) mediante el envío de un paquete crypto-NAK falsificado con datos de autenticación incorrectos en un momento determinado. Potential security vu... • http://bugs.ntp.org/3045 • CWE-287: Improper Authentication •

CVSS: 7.5EPSS: 13%CPEs: 41EXPL: 0

06 Jun 2016 — 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. La función process_packet en ntp_proto.c en ntpd en NTP 4.x en versiones anteriores a 4.2.8p8 permite a atacantes remotos provocar una denegación de servicio (modificación de par variable) enviando paquetes falsif... • http://bugs.ntp.org/3044 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •

CVSS: 5.9EPSS: 8%CPEs: 37EXPL: 0

06 Jun 2016 — 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. ntpd en NTP 4.x en versiones anteriores a 4.2.8p8, cuando está habilitada la autoclave, permite a atacantes remotos provocar una denegación de servicio (limpiando el par variable y corte de asociación) enviando (1) un paquete crypto-NAK manipulado ... • http://bugs.ntp.org/3043 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •

CVSS: 5.3EPSS: 3%CPEs: 37EXPL: 0

06 Jun 2016 — 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. ntpd en NTP 4.x en versiones anteriores a 4.2.8p8 permite a atacantes remotos provocar una denegación de servicio (transición de modo intercalado y cambio de hora) a través de un paquete de difusión manipulado. NOTA: esta vulnerabilidad existe debido a una solución inco... • http://bugs.ntp.org/3042 •

CVSS: 5.3EPSS: 2%CPEs: 1EXPL: 0

02 May 2016 — 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. Un atacante fuera de ruta puede provocar que una asociación de clientes preventiva sea desmovilizada en NTP 4.2.8p4 y versiones anteriores y NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92 en... • http://rhn.redhat.com/errata/RHSA-2016-1552.html • CWE-20: Improper Input Validation •

CVSS: 7.1EPSS: 23%CPEs: 93EXPL: 0

02 May 2016 — 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. NTP en versiones anteriores a 4.2.8p7 y 4.3.x en versiones anteriores a 4.3.92, cuando mode7 está habilitado, permite a atacantes remotos provocar una denegación de servicio (anular ntpd) usando la misma dirección IP varias veces en una directiva unconfig. Aanchal Malhotra discovered that NTP incorrectly han... • http://support.ntp.org/bin/view/Main/NtpBug3011 • CWE-20: Improper Input Validation •

CVSS: 5.3EPSS: 4%CPEs: 93EXPL: 0

02 May 2016 — 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. NTP en versiones anteriores a 4.2.8p7 y 4.3.x en versiones anteriores a 4.3.92 permite a los atacantes remotos provocar una denegación de servicio (e... • http://support.ntp.org/bin/view/Main/NtpBug3010 • CWE-20: Improper Input Validation •