CVSS: 5.9EPSS: 2%CPEs: 37EXPL: 0CVE-2016-4955
https://notcve.org/view.php?id=CVE-2016-4955
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 o (2) un paquete con un valor MAC incorrecto en un momento determinado. • http://bugs.ntp.org/3043 http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00018.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00020.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00023.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00024.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00028.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00040.html http://lists.opensuse.org/ • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') •
CVSS: 7.5EPSS: 91%CPEs: 14EXPL: 0CVE-2016-4957
https://notcve.org/view.php?id=CVE-2016-4957
ntpd in NTP before 4.2.8p8 allows remote attackers to cause a denial of service (daemon crash) via a crypto-NAK packet. NOTE: this vulnerability exists because of an incorrect fix for CVE-2016-1547. ntpd en NTP en versiones anteriores a 4.2.8p8 permite a atacantes remotos provocar una denegación de servicio (caída del demonio) a través de un paquete crypto-NAK. NOTA: esta vulnerabilidad existe debido a una solución incorrecta para CVE-2016-1547. • http://bugs.ntp.org/3046 http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00018.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00023.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00024.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00028.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00040.html http://support.ntp.org/bin/view/Main/NtpBug3046 http://support.ntp.org/bin/view/Main/SecurityNot • CWE-476: NULL Pointer Dereference •
CVSS: 5.3EPSS: 2%CPEs: 37EXPL: 0CVE-2016-4956
https://notcve.org/view.php?id=CVE-2016-4956
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 incompleta para CVE-2016-1548. • http://bugs.ntp.org/3042 http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00018.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00020.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00023.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00024.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00028.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00040.html http://lists.opensuse.org/ •
CVSS: 3.7EPSS: 0%CPEs: 2EXPL: 0CVE-2016-1551
https://notcve.org/view.php?id=CVE-2016-1551
ntpd in NTP 4.2.8p3 and NTPsec a5fb34b9cc89b92a8fef2f459004865c93bb7f92 relies on the underlying operating system to protect it from requests that impersonate reference clocks. Because reference clocks are treated like other peers and stored in the same structure, any packet with a source ip address of a reference clock (127.127.1.1 for example) that reaches the receive() function will match that reference clock's peer record and will be treated as a trusted peer. Any system that lacks the typical martian packet filtering which would block these packets is in danger of having its time controlled by an attacker. ntpd en NTP 4.2.8p3 y NTPsec a5fb34b9cc89b92a8fef2f459004865c93bb7f92 confía en el sistema operativo subyacente para protegerlo de las solicitudes que suplantan relojes de referencia. Debido a que los relojes de referencia son tratados como otros pares y almacenados en la misma estructura, cualquier paquete con una dirección IP de origen de un reloj de referencia (127.127.1.1 por ejemplo) que alcance la función receive() coincidirá con el registro de par de referencia clock's y será tratado como un par de confianza. Cualquier sistema que carezca del típico filtrado de paquetes marcianos que bloquearía estos paquetes está en peligro de tener su tiempo controlado por un atacante. • http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html http://www.securityfocus.com/bid/88219 http://www.securitytracker.com/id/1035705 http://www.talosintelligence.com/reports/TALOS-2016-0132 https://security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.asc https://security.gentoo.org/glsa/201607-15 https://security.netapp.com/advisory/ntap-20171004-0002 • CWE-254: 7PK - Security Features •
CVSS: 5.3EPSS: 0%CPEs: 1EXPL: 0CVE-2016-1550 – ntp: libntp message digest disclosure
https://notcve.org/view.php?id=CVE-2016-1550
An exploitable vulnerability exists in the message authentication functionality of libntp in ntp 4.2.8p4 and NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92. An attacker can send a series of crafted messages to attempt to recover the message digest key. Existe una vulnerabilidad explotable en el mensaje de autenticación de la función del libntp en ntp 4.2.8p4 y NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92. Un atacante puede enviar series de mensajes manipulados para intentar el mensaje de dirección de clave. A flaw was found in the way NTP's libntp performed message authentication. • http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183647.html http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184669.html http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00034.html http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00037.html http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00052.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00001.html http://lists.opensuse.org/opensuse-security-announce/2016& • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •