CVSS: 6.5EPSS: 96%CPEs: 31EXPL: 1CVE-2015-7855 – NTP 4.2.8p3 - Denial of Service
https://notcve.org/view.php?id=CVE-2015-7855
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. La función decodenetnum en ntpd en NTP 4.2.x en versiones anteriores a 4.2.8p4, y 4.3.x en versiones anteriores a 4.3.77 permite que atacantes remotos provoquen una denegación de servicio (fallo de aserción) empleando un paquete en modo 6 o modo 7 que contiene un valor de datos largo. NTP version 4.2.8p3 suffers from a denial of service vulnerability. • https://www.exploit-db.com/exploits/40840 http://support.ntp.org/bin/view/Main/NtpBug2922 http://www.debian.org/security/2015/dsa-3388 http://www.securityfocus.com/bid/77283 http://www.securitytracker.com/id/1033951 https://bugzilla.redhat.com/show_bug.cgi?id=1274264 https://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdf https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05270839 https://security.gentoo.org/glsa/201607-15 https:/&# • CWE-20: Improper Input Validation •
CVSS: 9.8EPSS: 1%CPEs: 31EXPL: 0CVE-2015-7705
https://notcve.org/view.php?id=CVE-2015-7705
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. La funcionalidad de limitación de velocidad en NTP 4.x en versiones anteriores a la 4.2.8p4 y 4.3.x en versiones anteriores a la 4.3.77 permite que atacantes remotos provoquen errores sin especificar empleando un gran número de peticiones manipuladas. • http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.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/msg00048.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/2016-06 • CWE-20: Improper Input Validation •
CVSS: 6.5EPSS: 0%CPEs: 18EXPL: 1CVE-2015-7851
https://notcve.org/view.php?id=CVE-2015-7851
Directory traversal vulnerability in the save_config function in ntpd in ntp_control.c in NTP before 4.2.8p4, when used on systems that do not use '\' or '/' characters for directory separation such as OpenVMS, allows remote authenticated users to overwrite arbitrary files. La vulnerabilidad salto de directorio en la función save_config en ntpd en el archivo ntp_control.c en NTP versiones anteriores a 4.2.8p4, cuando es usado en sistemas que no utilizan caracteres "\" o '"/" para la separación de directorios como OpenVMS, permite a usuarios autenticados remotos sobrescribir archivos arbitrarios. • http://support.ntp.org/bin/view/Main/NtpBug2918 http://support.ntp.org/bin/view/Main/SecurityNotice http://www.talosintel.com/reports/TALOS-2015-0062 • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') •
CVSS: 6.8EPSS: 1%CPEs: 11EXPL: 0CVE-2014-9751 – ntp: drop packets with source address ::1
https://notcve.org/view.php?id=CVE-2014-9751
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. La función read_network_packet en ntp_io.c en ntpd en NTP 4.x en versiones anteriores a 4.2.8p1 en Linux y OS X no determina correctamente si una dirección IP fuente es una dirección IPv6 loopback, lo que facilita a atacantes remotos suplantar paquetes restringidos y leer o escribir en el estado runtime, aprovechando la habilidad para alcanzar la interfaz de red de la máquina ntpd con un paquete proveniente de la dirección ::1. It was found that because NTP's access control was based on a source IP address, an attacker could bypass source IP restrictions and send malicious control and configuration packets by spoofing ::1 addresses. • http://bugs.ntp.org/show_bug.cgi?id=2672 http://rhn.redhat.com/errata/RHSA-2015-1459.html http://support.ntp.org/bin/view/Main/SecurityNotice#December_2014_NTP_Security_Vulne http://www.debian.org/security/2015/dsa-3388 http://www.kb.cert.org/vuls/id/852879 http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html http://www.securityfocus.com/bid/72584 https://bugzilla.redhat.com/show_bug.cgi?id=1184572 https://support.hpe.com/hpsc/doc/public&#x • CWE-20: Improper Input Validation •
CVSS: 5.8EPSS: 1%CPEs: 9EXPL: 0CVE-2014-9750 – ntp: vallen in extension fields are not validated
https://notcve.org/view.php?id=CVE-2014-9750
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. ntp_crypto.c en ntpd en NTP 4.x en versiones anteriores a 4.2.8p1, cuando Autokey Authentication está habilitada, permite a atacantes remotos obtener información sensible de la memoria de proceso o causar una denegación de servicio (caída del demonio) a través de un paquete que contiene un campo extension con un valor no válido para la longitud de su campo de valor. A stack-based buffer overflow was found in the way the NTP autokey protocol was implemented. When an NTP client decrypted a secret received from an NTP server, it could cause that client to crash. • http://bugs.ntp.org/show_bug.cgi?id=2671 http://rhn.redhat.com/errata/RHSA-2015-1459.html http://support.ntp.org/bin/view/Main/SecurityNotice#December_2014_NTP_Security_Vulne http://www.debian.org/security/2015/dsa-3388 http://www.kb.cert.org/vuls/id/852879 http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html http://www.securityfocus.com/bid/72583 https://bugzilla.redhat.com/show_bug.cgi?id=1184573 https://support.hpe.com/hpsc/doc/public&#x • CWE-20: Improper Input Validation •