K61363039: NTP vulnerability CVE-2019-8936

Security Advisory Description NTP through 4.2.8p12 has a NULL Pointer Dereference. CVE-2019-8936 Impact There is no impact; F5 products are not affected by this vulnerability. Security Advisory Status F5 Product Development has evaluated the currently supported releases for potential vulnerabilit...

K55376430: NTP vulnerabilities CVE-2020-13817

Security Advisory Description The ntpd in the network time protocol NTP before 4.2.8p14, and in 4.3.x before 4.3.100, allows remote attackers to cause a denial-of-service DoS, either daemon exit or system time change, by predicting transmit timestamps for use in spoofed packets. The victim must b...

K44942017: NTP vulnerability CVE-2014-5209

Security Advisory Description An Information Disclosure vulnerability exists in NTP 4.2.7p25 private mode 6/7 messages via a GETRESTRICT control message, which could let a malicious user obtain sensitive information. CVE-2014-5209 Impact An attacker may be able to prompt the network time protocol...

K92800352: NTP vulnerability CVE-2016-4953

Security Advisory Description 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. CVE-2016-4953 Impact There is no impact; F5 products...

K82644737: NTP vulnerability CVE-2016-4954

Security Advisory Description 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...

K21230183: NTP vulnerability CVE-2015-7976

Security Advisory Description The ntpq saveconfig command in NTP 4.1.2, 4.2.x before 4.2.8p6, 4.3, 4.3.25, 4.3.70, and 4.3.77 does not properly filter special characters, which allows attackers to cause unspecified impact via a crafted filename. CVE-2015-7976 Impact A remote user who uses the ntp...

K11251130: NTP vulnerability CVE-2016-1547

Security Advisory Description 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...

K43205719: NTP input validation vulnerability CVE-2016-1550

Security Advisory Description 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. CVE-2016-1550...

K45427159: NTP authentication bypass vulnerability CVE-2016-1551

Security Advisory Description ntpd in NTP 4.2.8p3 and NTPsec a5fb34b9cc89b92a8fef2f459004865c93bb7f92 relies on the underlying operating system to protect it from requests that impersonate reference clocks. Because reference clocks are treated like other peers and stored in the same structure, an...

K20804323: NTP vulnerability CVE-2016-2518

Security Advisory Description 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. CVE-2016-2518 Using a crafted packet to create a peer association with hmode 7...

K24613253: NTP vulnerability CVE-2016-2516

Security Advisory Description 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. CVE-2016-2516 Impact An attacker may be able to compromise the...

K74363721: NTP vulnerability CVE-2015-7975

Security Advisory Description The nextvar function in NTP before 4.2.8p6 and 4.3.x before 4.3.90 does not properly validate the length of its input, which allows an attacker to cause a denial of service application crash. CVE-2015-7975 Impact A remote attacker could potentially use this flaw to...

K17522: NTP vulnerability CVE-2015-7851

Security Advisory Description Directory traversal vulnerability in the saveconfig function in ntpd in ntpcontrol.c in NTP before 4.2.8p4, when used on systems that do not use '' or '/' characters for directory separation such as OpenVMS, allows remote authenticated users to overwrite arbitrary...

K17521: NTP vulnerability CVE-2015-7849

Security Advisory Description 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. CVE-2015-7849 Impact There is no impact; F5 products...

K17527: NTP vulnerability CVE-2015-7705

Security Advisory Description 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. CVE-2015-7705 Impact An attacker with the ability to spoof multiple client requests may be able to...

K15936: NTP vulnerability CVE-2014-9295

Security Advisory Description Multiple stack-based buffer overflows in ntpd in NTP before 4.2.8 allow remote attackers to execute arbitrary code via a crafted packet, related to 1 the cryptorecv function when the Autokey Authentication feature is used, 2 the ctlputdata function, and 3 the configu...

K32262483: NTP vulnerability CVE-2017-6451

Security Advisory Description The mx4200send function in the legacy MX4200 refclock in NTP before 4.2.8p10 and 4.3.x before 4.3.94 does not properly handle the return value of the snprintf function, which allows local users to execute arbitrary code via unspecified vectors, which trigger an...

K31310492: NTP vulnerability CVE-2017-6460

Security Advisory Description Stack-based buffer overflow in the reslist function in ntpq in NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows remote servers have unspecified impact via a long flagstr variable in a restriction list response. CVE-2017-6460 Impact Allows remote servers to have...

K15933: NTP vulnerability CVE-2014-9296

Security Advisory Description The receive function in ntpproto.c in ntpd in NTP before 4.2.8 continues to execute after detecting a certain authentication error, which might allow remote attackers to trigger an unintended association change via crafted packets. CVE-2014-9296 Impact None. No F5...

K02360853: NTP vulnerabilities CVE-2015-5194 and CVE-2015-5195

Security Advisory Description CVE-2015-5194 The logconfigcommand function in ntpparser.y in ntpd in NTP before 4.2.7p42 allows remote attackers to cause a denial of service ntpd crash via crafted logconfig commands. CVE-2015-5195 ntpopenssl.m4 in ntpd in NTP before 4.2.7p112 allows remote attacke...