ntp: infinite loop in sntp processing crafted packet

It was discovered that the sntp utility could become unresponsive due to being caught in an infinite loop when processing a crafted NTP packet...

ntp: slow memory leak in CRYPTO_ASSOC

A memory leak flaw was found in ntpd's CRYPTOASSOC. If ntpd was configured to use autokey authentication, an attacker could send packets to ntpd that would, after several days of ongoing attack, cause it to run out of memory...

[SECURITY] Fedora 23 Update: ntp-4.2.6p5-40.fc23

The Network Time Protocol NTP is used to synchronize a computer's time with another reference time source. This package includes ntpd a daemon which continuously adjusts system time and utilities used to query and configure the ntpd daemon. Perl scripts ntp-wait and ntptrace are in the ntp-perl...

[SECURITY] Fedora 24 Update: ntp-4.2.6p5-40.fc24

The Network Time Protocol NTP is used to synchronize a computer's time with another reference time source. This package includes ntpd a daemon which continuously adjusts system time and utilities used to query and configure the ntpd daemon. Perl scripts ntp-wait and ntptrace are in the ntp-perl...

ntpd System Time Modification Vulnerability

ntpd is an operating system daemon that uses the Network Time Protocol to keep synchronized with the system time of a time server. A security vulnerability in ntpd exists when the program uses trustedkey and does not have the feature introduced in ntp-4.2.8p6 enabled, allowing a remote attacker t...

ntpd system time modification vulnerability (CNVD-2016-02740)

ntpd is an operating system daemon that uses the Network Time Protocol to keep synchronized with the system time of a time server. A security vulnerability in ntpd allows a remote attacker to modify a client's system time by forging packets and changing the basic client/server mode to an...

ntpd crypto NAK Packet Denial of Service Vulnerability

ntpd is an operating system daemon that uses the Network Time Protocol to keep synchronized with the system time of a time server. A security vulnerability exists in ntpd that allows remote attackers to send crypto NAK packets with forged source addresses for denial-of-service attacks...

UBUNTU-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...

FreeBSD-SA-16:16.ntp

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-16:16.ntp Security Advisory The FreeBSD Project Topic: Multiple vulnerabilities of ntp Category: contrib Module: ntp Announced: 2016-04-29 Credits: Network Time...

UBUNTU-CVE-2016-1548

An attacker can spoof a packet from a legitimate ntpd server with an origin timestamp that matches the peer-dst timestamp recorded for that server. After making this switch, the client in NTP 4.2.8p4 and earlier and NTPSec aa48d001683e5b791a743ec9c575aaf7d867a2b0c will reject all future legitimat...

UBUNTU-CVE-2016-2518

The MATCHASSOC 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...

UBUNTU-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...

UBUNTU-CVE-2016-2516

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...

Multiple Vulnerabilities in Network Time Protocol Daemon Affecting Cisco Products: April 2016

Multiple Cisco products incorporate a version of the Network Time Protocol daemon ntpd package. Versions of this package are affected by one or more vulnerabilities that could allow an unauthenticated, remote attacker to cause a denial of service DoS condition or modify the time being advertised ...

ntpd Denial of Service Vulnerability (CNVD-2016-02667)

ntpd Network Time Protocol daemon is an operating system daemon that uses the Network Time Protocol NTP to keep synchronized with the system time of a time server. A security vulnerability exists in ntpd version 4.x prior to 4.2.8p7 and version 4.3 prior to 4.3.92. An attacker can exploit this...

ntpd denial of service vulnerability

ntpd Network Time Protocol daemon is an operating system daemon that uses the Network Time Protocol NTP to keep synchronized with the system time of a time server. A security vulnerability exists in ntpd versions 4.x prior to 4.2.8p7 and 4.3 prior to 4.3.92, which stems from the program failing t...

ntpd Information Disclosure Vulnerability

ntpd Network Time Protocol daemon is an operating system daemon that uses the Network Time Protocol NTP to keep synchronized with the system time of a time server. A security vulnerability exists in ntpd version 4.x before 4.2.8p7 and version 4.3 before 4.3.92. An attacker could exploit the...

ntpd Packet Injection Vulnerability

ntpd Network Time Protocol daemon is an operating system daemon that uses the Network Time Protocol NTP to keep synchronized with the system time of a time server. A security vulnerability exists in ntpd version 4.x before 4.2.8p7 and version 4.3 before 4.3.92. An attacker can exploit this...

ntpd Denial of Service Vulnerability (CNVD-2016-02669)

ntpd Network Time Protocol daemon is an operating system daemon that uses the Network Time Protocol NTP to keep synchronized with the system time of a time server. A security vulnerability exists in ntpd version 4.x before 4.2.8p7 and version 4.3 before 4.3.92. An attacker can exploit this...

PT-2016-4856 · Ntf +7 · Ntp +7

Name of the Vulnerable Software and Affected Versions: NTP versions 4.2.8p4 and earlier NTPSec version aa48d001683e5b791a743ec9c575aaf7d867a2b0c Description: An attacker can spoof a packet from a legitimate ntpd server with an origin timestamp that matches the peer-dst timestamp recorded for that...