Network Time Protocol Daemon (ntpd) 3.x / 4.x < 4.2.8p4 Multiple Vulnerabilities

The version of the remote NTP server is 3.x or 4.x prior to 4.2.8p4. It is, therefore, affected by the following vulnerabilities : - A flaw exists in the ntpcrypto.c file due to improper validation of the 'vallen' value in extension fields. An unauthenticated, remote attacker can exploit this, vi...

NTP Denial of Service Vulnerability (CNVD-2015-07019)

NTP Network Time Protocol is a network protocol that synchronizes the clocks of two computers by exchanging packets. A security vulnerability exists in NTP versions prior to 4.2.8p4 and 4.3.x prior to 4.3.77. due to the program failing to properly check packet length. An attacker could exploit th...

NTP Denial of Service Vulnerability (CNVD-2015-07018)

NTP Network Time Protocol is a network protocol that synchronizes the clocks of two computers by exchanging packets. A security vulnerability exists in NTP versions prior to 4.2.8p4 and 4.3.x prior to 4.3.77. due to the program failing to properly check packet length. An attacker could exploit th...

NTP Directory Traversal Vulnerability

NTP Network Time Protocol is a network protocol that synchronizes the clocks of two computers by exchanging packets. A security vulnerability exists in NTP versions prior to 4.2.8p4 and 4.3.x prior to 4.3.77. A remote attacker can exploit this vulnerability by sending NTP packets to overwrite the...

RHEL 6 / 7 : ntp (RHSA-2015:1930)

Updated ntp packages that fix two security issues are now available for Red Hat Enterprise Linux 6 and 7. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System CVSS base scores, which give detailed severity ratings, are available f...

RedHat Update for ntp RHSA-2015:1930-01

The remote host is missing an update for the SPDX-FileCopyrightText: 2015 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

CentOS Update for ntp CESA-2015:1930 centos6

Check the version of ntp SPDX-FileCopyrightText: 2015 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription scriptoid"1.3.6.1.4.1.25623.1.0.882308";...

ntp: MITM attacker can force ntpd to make a step larger than the panic threshold

It was found that ntpd did not correctly implement the threshold limitation for the '-g' option, which is used to set the time without any restrictions. A man-in-the-middle attacker able to intercept NTP traffic between a connecting client and an NTP server could use this flaw to force that clien...

ntp: disabling synchronization via crafted KoD packet

It was discovered that ntpd as a client did not correctly check timestamps in Kiss-of-Death packets. A remote attacker could use this flaw to send a crafted Kiss-of-Death packet to an ntpd client that would increase the client's polling interval value, and effectively disable synchronization with...

ntp, ntpdate, sntp security update

CentOS Errata and Security Advisory CESA-2015:1930 Updated ntp packages that fix two security issues are now available for Red Hat Enterprise Linux 6 and 7. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System CVSS base scores,...

FreeBSD-SA-15:25.ntp

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-15:25.ntp Security Advisory The FreeBSD Project Topic: Multiple vulnerabilities of ntp REVISED Category: contrib Module: ntp Announced: 2015-10-26, revised on...

UBUNTU-CVE-2015-7702

The cryptoxmit 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 crash. NOTE: This vulnerability exists due to an incomplete fix for CVE-2014-9750...

UBUNTU-CVE-2015-7701

Memory leak in the CRYPTOASSOC 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 memory consumption...

UBUNTU-CVE-2015-5300

The panicgate check in NTP before 4.2.8p5 is only re-enabled after the first change to the system clock that was greater than 128 milliseconds by default, which allows remote attackers to set NTP to an arbitrary time when started with the -g option, or to alter the time by up to 900 seconds...

UBUNTU-CVE-2015-7691

The cryptoxmit 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 crash via crafted packets containing particular autokey operations. NOTE: This vulnerability exists due to an incomplete fix for CVE-2014-9750...

UBUNTU-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...

UBUNTU-CVE-2015-7853

The datalen parameter in the refclock driver in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to execute arbitrary code or cause a denial of service crash via a negative input value...

UBUNTU-CVE-2015-7871

Crypto-NAK packets in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to bypass authentication...

UBUNTU-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...

UBUNTU-CVE-2015-7692

The cryptoxmit 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 crash. NOTE: This vulnerability exists due to an incomplete fix for CVE-2014-9750...