CVSS: 7.7EPSS: 0%CPEs: 29EXPL: 1CVE-2015-7974 – ntp: missing key check allows impersonation between authenticated peers (VU#357792)
https://notcve.org/view.php?id=CVE-2015-7974
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." NTP 4.x en versiones anteriores a 4.2.8p6 y 4.3.x en versiones anteriores a 4.3.90 no verifica las asociaciones del par de las claves simétricas cuando autentica paquetes, lo que podría permitir a atacante remotos llevar a cabo ataques de suplantación de identidad a través de una clave de confianza arbitraria, también conocida como "skeleton key". A flaw was found in the way NTP verified trusted keys during symmetric key authentication. An authenticated client (A) could use this flaw to modify a packet sent between a server (B) and a client (C) using a key that is different from the one known to the client (A). • http://bugs.ntp.org/show_bug.cgi?id=2936 http://rhn.redhat.com/errata/RHSA-2016-2583.html http://support.ntp.org/bin/view/Main/NtpBug2936 http://www.debian.org/security/2016/dsa-3629 http://www.securityfocus.com/bid/81960 http://www.securitytracker.com/id/1034782 http://www.talosintel.com/reports/TALOS-2016-0071 https://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdf https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03750e • CWE-287: Improper Authentication CWE-304: Missing Critical Step in Authentication •
CVSS: 7.5EPSS: 1%CPEs: 33EXPL: 0CVE-2015-5219 – ntp: infinite loop in sntp processing crafted packet
https://notcve.org/view.php?id=CVE-2015-5219
The ULOGTOD function in ntp.d in SNTP before 4.2.7p366 does not properly perform type conversions from a precision value to a double, which allows remote attackers to cause a denial of service (infinite loop) via a crafted NTP packet. La función ULOGTOD en el archivo ntp.d en SNTP en versiones anteriores a la 4.2.7p366 no realiza apropiadamente las conversiones de tipo de un valor de precisión a uno doble, lo que permite a los atacantes remotos causar una denegación de servicio (bucle infinito) por medio de un paquete NTP creado. It was discovered that the sntp utility could become unresponsive due to being caught in an infinite loop when processing a crafted NTP packet. • http://aix.software.ibm.com/aix/efixes/security/ntp_advisory4.asc http://bk1.ntp.org/ntp-dev/?PAGE=patch&REV=51786731Gr4-NOrTBC_a_uXO4wuGhg http://lists.fedoraproject.org/pipermail/package-announce/2015-November/170926.html http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169167.html http://lists.fedoraproject.org/pipermail/package-announce/2015-September/166992.html http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.html http://lists.opensuse.org/opensuse-updates&#x • CWE-704: Incorrect Type Conversion or Cast CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •
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 •