CVSS: 5.3EPSS: 0%CPEs: 1EXPL: 0CVE-2016-1547 – ntp: crypto-NAK preemptable association denial of service
https://notcve.org/view.php?id=CVE-2016-1547
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 enviando un paquete NAK encriptado a un cliente víctima con una dirección fuente suplantada de un asociado existente. Esto es cierto incluso si la autenticación está habilitada. A denial of service flaw was found in the way NTP handled preemptable client associations. • http://rhn.redhat.com/errata/RHSA-2016-1552.html http://www.debian.org/security/2016/dsa-3629 http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html http://www.securityfocus.com/bid/88276 http://www.securitytracker.com/id/1035705 http://www.talosintelligence.com/reports/TALOS-2016-0081 https://access.redhat.com/errata/RHSA-2016:1141 https://cert-portal.siemens.com/productcert/pdf/ssa- • CWE-20: Improper Input Validation •
CVSS: 5.3EPSS: 0%CPEs: 125EXPL: 0CVE-2016-2518 – ntp: out-of-bounds references on crafted packet
https://notcve.org/view.php?id=CVE-2016-2518
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. La función MATCH_ASSOC en NTP en versiones anteriores 4.2.8p9 y 4.3.x en versiones anteriores a 4.3.92 permite a atacantes remotos provocar una referencia fuera de los límites a través de una solicitud addpeer con un valor hmode grande. An out-of-bounds access flaw was found in the way ntpd processed certain packets. An authenticated attacker could use a crafted packet to create a peer association with hmode of 7 and larger, which could potentially (although highly unlikely) cause ntpd to crash. • 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-125: Out-of-bounds Read •
CVSS: 7.5EPSS: 8%CPEs: 90EXPL: 0CVE-2015-7978 – ntp: stack exhaustion in recursive traversal of restriction list
https://notcve.org/view.php?id=CVE-2015-7978
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. NTP en versiones anteriores a 4.2.8p6 y 4.3.0 en versiones anteriores a 4.3.90 permite a atacantes remotos provocar una denegación de servicio (agotamiento de la pila) a través de un comando ntpdc relist, lo que desencadena el recorrido recursivo de la lista de restricciones. A stack-based buffer overflow flaw was found in the way ntpd processed 'ntpdc reslist' commands that queried restriction lists with a large amount of entries. A remote attacker could use this flaw to crash ntpd. • http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177507.html http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176434.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00059.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00060.html http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.html http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00038.html http://lists.opensuse.org/opensuse-security-announce&# • CWE-121: Stack-based Buffer Overflow CWE-400: Uncontrolled Resource Consumption •
CVSS: 7.5EPSS: 9%CPEs: 90EXPL: 0CVE-2015-7979 – ntp: off-path denial of service on authenticated broadcast mode
https://notcve.org/view.php?id=CVE-2015-7979
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. NTP en versiones anteriores a 4.2.8p6 y 4.3.x en versiones anteriores a 4.3.90 permite a atacantes remotos causar una denegación de servicio (asociación cliente-servidor) por el envío de paquetes de difusión con autenticación no válida a un cliente transmisor. It was found that when NTP was configured in broadcast mode, a remote attacker could broadcast packets with bad authentication to all clients. The clients, upon receiving the malformed packets, would break the association with the broadcast server, causing them to become out of sync over a longer period of time. • http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177507.html http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176434.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00059.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00060.html http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.html http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00038.html http://lists.opensuse.org/opensuse-security-announce&# • CWE-19: Data Processing Errors CWE-20: Improper Input Validation •
CVSS: 5.9EPSS: 1%CPEs: 90EXPL: 0CVE-2015-8158 – ntp: potential infinite loop in ntpq
https://notcve.org/view.php?id=CVE-2015-8158
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. La función getresponse en ntpq en NTP versiones anteriores a 4.2.8p9 y 4.3.x en versiones anteriores a 4.3.90 permite a los atacantes remotos causar una denegación de servicio (bucle infinito) a través de paquetes creados con valores incorrectos. A flaw was found in the way the ntpq client processed certain incoming packets in a loop in the getresponse() function. A remote attacker could potentially use this flaw to crash an ntpq client instance. • http://rhn.redhat.com/errata/RHSA-2016-2583.html http://support.ntp.org/bin/view/Main/NtpBug2948 http://www.debian.org/security/2016/dsa-3629 http://www.securityfocus.com/bid/81814 http://www.securitytracker.com/id/1034782 https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03750en_us https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03766en_us https://security.FreeBSD.org/advisories/FreeBSD-SA-16:09. • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •