National Vulnerability Database

National Vulnerability Database

National Vulnerability
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Search Parameters:
  • Contains Software Flaws (CVE)
  • CPE Product Version: cpe:/a:ntp:ntp:4.2.5:p172
There are 31 matching records.
Displaying matches 1 through 20.
Vuln ID Summary CVSS Severity
CVE-2019-8936

NTP through 4.2.8p12 has a NULL Pointer Dereference.

Published: May 15, 2019; 12:29:01 PM -04:00
V3: 7.5 HIGH
V2: 5.0 MEDIUM
CVE-2018-7170

ntpd in ntp 4.2.x before 4.2.8p7 and 4.3.x before 4.3.92 allows authenticated users that know the private symmetric key to create arbitrarily-many ephemeral associations in order to win the clock selection of ntpd and modify a victim's clock via a Sybil attack. This issue exists because of an incomplete fix for CVE-2016-1549.

Published: March 06, 2018; 03:29:01 PM -05:00
V3: 5.3 MEDIUM
V2: 3.5 LOW
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.

Published: August 07, 2017; 04:29:00 PM -04:00
V3: 9.8 CRITICAL
V2: 7.5 HIGH
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.

Published: August 07, 2017; 04:29:00 PM -04:00
V3: 6.5 MEDIUM
V2: 4.0 MEDIUM
CVE-2015-7854

Buffer overflow in the password management functionality in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote authenticated users to cause a denial of service (daemon crash) or possibly execute arbitrary code via a crafted key file.

Published: August 07, 2017; 04:29:00 PM -04:00
V3: 8.8 HIGH
V2: 6.5 MEDIUM
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.

Published: August 07, 2017; 04:29:00 PM -04:00
V3: 9.8 CRITICAL
V2: 7.5 HIGH
CVE-2015-7852

ntpq 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 mode 6 response packets.

Published: August 07, 2017; 04:29:00 PM -04:00
V3: 5.9 MEDIUM
V2: 4.3 MEDIUM
CVE-2015-7850

ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote authenticated users to cause a denial of service (infinite loop or crash) by pointing the key file at the log file.

Published: August 07, 2017; 04:29:00 PM -04:00
V3: 6.5 MEDIUM
V2: 4.0 MEDIUM
CVE-2015-7849

Use-after-free vulnerability in ntpd in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote authenticated users to possibly execute arbitrary code or cause a denial of service (crash) via crafted packets.

Published: August 07, 2017; 04:29:00 PM -04:00
V3: 8.8 HIGH
V2: 6.5 MEDIUM
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.

Published: August 07, 2017; 04:29:00 PM -04:00
V3: 9.8 CRITICAL
V2: 7.5 HIGH
CVE-2015-7704

The ntpd client in NTP 4.x before 4.2.8p4 and 4.3.x before 4.3.77 allows remote attackers to cause a denial of service via a number of crafted "KOD" messages.

Published: August 07, 2017; 04:29:00 PM -04:00
V3: 7.5 HIGH
V2: 5.0 MEDIUM
CVE-2015-7702

The crypto_xmit 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.

Published: August 07, 2017; 04:29:00 PM -04:00
V3: 6.5 MEDIUM
V2: 4.0 MEDIUM
CVE-2015-7701

Memory leak in the CRYPTO_ASSOC 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).

Published: August 07, 2017; 04:29:00 PM -04:00
V3: 7.5 HIGH
V2: 7.8 HIGH
CVE-2015-7692

The crypto_xmit 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.

Published: August 07, 2017; 04:29:00 PM -04:00
V3: 7.5 HIGH
V2: 5.0 MEDIUM
CVE-2015-7691

The crypto_xmit 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.

Published: August 07, 2017; 04:29:00 PM -04:00
V3: 7.5 HIGH
V2: 5.0 MEDIUM
CVE-2015-7703

The "pidfile" or "driftfile" directives in NTP ntpd 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77, when ntpd is configured to allow remote configuration, allows remote attackers with an IP address that is allowed to send configuration requests, and with knowledge of the remote configuration password to write to arbitrary files via the :config command.

Published: July 24, 2017; 10:29:00 AM -04:00
V3: 7.4 HIGH
V2: 5.8 MEDIUM
CVE-2016-4957

ntpd in NTP before 4.2.8p8 allows remote attackers to cause a denial of service (daemon crash) via a crypto-NAK packet. NOTE: this vulnerability exists because of an incorrect fix for CVE-2016-1547.

Published: July 04, 2016; 09:59:04 PM -04:00
V3: 8.6 HIGH
V2: 5.0 MEDIUM
CVE-2016-4956

ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (interleaved-mode transition and time change) via a spoofed broadcast packet. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-1548.

Published: July 04, 2016; 09:59:03 PM -04:00
V3: 5.8 MEDIUM
V2: 5.0 MEDIUM
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.

Published: July 04, 2016; 09:59:02 PM -04:00
V3: 4.0 MEDIUM
V2: 2.6 LOW
CVE-2016-4954

The process_packet function in ntp_proto.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.

Published: July 04, 2016; 09:59:01 PM -04:00
V3: 4.0 MEDIUM
V2: 4.3 MEDIUM