CVE-2016-4955

ntpd in NTP 4.x before 4.2.8p8, when autokey is enabled, allows remote attackers to cause a denial of service peer-variable clearing and association outage by sending 1 a spoofed crypto-NAK packet or 2 a packet with an incorrect MAC value at a certain time. Mitigation Disable autokey...

CVE-2016-4954

The processpacket function in ntpproto.c in ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service peer-variable modification by sending spoofed packets from many source IP addresses in a certain scenario, as demonstrated by triggering an incorrect leap indication...

CVE-2016-4953

ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service ephemeral-association demobilization by sending a spoofed crypto-NAK packet with incorrect authentication data at a certain time...

NTP.org ntpd is vulnerable to denial of service and other vulnerabilities

Overview NTP.org's reference implementation of NTP server, ntpd, contains multiple vulnerabilities. Description NTP.org's reference implementation of NTP server, ntpd, contains multiple vulnerabilities. A brief overview follows, but details may be found in NTP's security advisory listing and in t...

Medium: ntp

Issue Overview: It was found that an ntpd client could be forced to change from basic client/server mode to the interleaved symmetric mode. A remote attacker could use a spoofed packet that, when processed by an ntpd client, would cause that client to reject all future legitimate server responses...

SUSE-SU-2016:1471-1 Security update for ntp

This update for ntp fixes the following issues: - Separate the creation of ntp.keys and key 1 in it to avoid problems when upgrading installations that have the file, but no key 1, which is needed e.g. by 'rcntp addserver'. - Update to 4.2.8p7 bsc977446: CVE-2016-1547, bsc977459: Validate...

openSUSE Security Update : ntp (openSUSE-2016-649)

This update for ntp fixes the following issues : - Update to 4.2.8p7 boo977446 : - CVE-2016-1547, boo977459: Validate crypto-NAKs, AKA: CRYPTO-NAK DoS. - CVE-2016-1548, boo977461: Interleave-pivot - CVE-2016-1549, boo977451: Sybil vulnerability: ephemeral association attack. - CVE-2016-1550,...

OracleVM 3.3 / 3.4 : ntp (OVMSA-2016-0082)

The remote OracleVM system is missing necessary patches to address critical security updates : - don't allow spoofed packets to demobilize associations CVE-2015-7979, CVE-2016-1547 - don't allow spoofed packet to enable symmetric interleaved mode CVE-2016-1548 - check mode of new source in config...

Oracle Linux 6 / 7 : ntp (ELSA-2016-1141)

The remote Oracle Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2016-1141 advisory. - don't allow spoofed packets to demobilize associations CVE-2015-7979, CVE-2016-1547 - don't allow spoofed packet to enable symmetric interleaved...

CentOS 6 / 7 : ntp (CESA-2016:1141)

An update for ntp is now available for Red Hat Enterprise Linux 6 and Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

RHEL 6 / 7 : ntp (RHSA-2016:1141)

The remote Redhat Enterprise Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2016:1141 advisory. The Network Time Protocol NTP is used to synchronize a computer's time with another referenced time source. These packages include the...

Moderate: Red Hat Security Advisory: ntp security update

An update for ntp is now available for Red Hat Enterprise Linux 6 and Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

ntp security update

4.2.6p5-10.el68.1 - don't allow spoofed packets to demobilize associations CVE-2015-7979, CVE-2016-1547 - don't allow spoofed packet to enable symmetric interleaved mode CVE-2016-1548 - check mode of new source in config command CVE-2016-2518 - make MAC check resilient against timing attack...

F5 Networks BIG-IP : NTP vulnerability (K17515)

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. CVE-2015-7855 Impact A locally authenticated user may be able to disrupt ntpd...

SOL41613034 - NTP vulnerability CVE-2016-2519

Vulnerability Recommended Actions If you are running a version listed in the Versions known to be vulnerable column, you can eliminate this vulnerability by upgrading to a version listed in the Versions known to be not vulnerable column. If the table lists only an older version than what you are...

F5 Networks BIG-IP : NTP vulnerability (K17525)

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. CVE-2015-7853 Impact Running a custom refclock driver in ntpd could overflow a data...

SOL20804323 - NTP vulnerability CVE-2016-2518

Vulnerability Recommended Actions If you are running a version listed in the Versions known to be vulnerable column, you can eliminate this vulnerability by upgrading to a version listed in the Versions known to be not vulnerable column. If the table lists only an older version than what you are...

SOL45427159 - NTP authentication bypass vulnerability CVE-2016-1551

Vulnerability Recommended Actions If you are running a version listed in the Versions known to be vulnerable column, you can eliminate this vulnerability by upgrading to a version listed in the Versions known to be not vulnerable column. If the table lists only an older version than what you are...

SOL11251130 - NTP vulnerability CVE-2016-1547

Vulnerability Recommended Actions If you are running a version listed in the Versions known to be vulnerable column, you can eliminate this vulnerability by upgrading to a version listed in the Versions known to be not vulnerable column. If the table lists only an older version than what you are...

F5 Networks BIG-IP : NTP vulnerability (K17517)

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. CVE-2015-7701 Impact An attacker could send packets to ntpd that may, after several days of ongoing attack, cause it to run...