K15935: NTP vulnerability CVE-2014-9294

Security Advisory Description util/ntp-keygen.c in ntp-keygen in NTP before 4.2.7p230 uses a weak RNG seed, which makes it easier for remote attackers to defeat cryptographic protection mechanisms via a brute-force attack. CVE-2014-9294 Impact Theoretically, a remote attacker can determine a weak...

K01324833: NTP vulnerability CVE-2015-8158

Security Advisory Description The getresponse function in ntpq in NTP versions before 4.2.8p9 and 4.3.x before 4.3.90 allows remote attackers to cause a denial of service infinite loop via crafted packets with incorrect values. CVE-2015-8158 Impact When this vulnerability is exploited, an attacke...

K16392: NTP vulnerability CVE-2014-9750

Security Advisory Description The vallen packet value is not validated in several code paths in ntpcrypto.c which can lead to information leakage or a possible crash of ntpd. CVE-2014-9750 Note : The original candidate number referenced in this article, CVE-2014-9297, was rejected because it was...

K65271605: NTP vulnerability CVE-2016-1549

Security Advisory Description A malicious authenticated peer can create arbitrarily-many ephemeral associations in order to win the clock selection algorithm in ntpd in NTP 4.2.8p4 and earlier and NTPsec 3e160db8dc248a0bcb053b56a80167dc742d2b74 and a5fb34b9cc89b92a8fef2f459004865c93bb7f92 and...

K63675293: NTP vulnerability CVE-2016-1548

Security Advisory 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 server. After making this switch, the client in NTP 4.2.8p4 and earlier and NTPSec aa48d001683e5b791a743ec9c575aaf7d867a2b0c wi...

K80996302: Multiple NTP vulnerabilities

Security Advisory Description CVE-2016-7427 The broadcast mode replay prevention functionality in ntpd in NTP before 4.2.8p9 allows remote attackers to cause a denial of service reject broadcast mode packets via a crafted broadcast mode packet. CVE-2016-7428 ntpd in NTP before 4.2.8p9 allows remo...

K17524: NTP vulnerability CVE-2015-7854

Security Advisory Description 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. CVE-2015-7854 Impact...

K17254: NTP-keygen vulnerability CVE-2015-3405

Security Advisory Description flaw was found in the way the ntp-keygen utility generated MD5 symmetric keys on big-endian systems. An attacker could possibly use this flaw to guess generated MD5 keys, which could then be used to spoof an NTP client or server. CVE-2015-3405 - pending Impact There...

K61200338: NTP vulnerability CVE-2016-2517

Security Advisory Description NTP before 4.2.8p7 and 4.3.x before 4.3.92 allows remote attackers to cause a denial of service prevent subsequent authentication by leveraging knowledge of the controlkey or requestkey and sending a crafted packet to ntpd, which changes the value of trustedkey,...

K07082049: NTP vulnerability CVE-2017-6462

Security Advisory Description Buffer overflow in the legacy Datum Programmable Time Server DPTS refclock driver in NTP before 4.2.8p10 and 4.3.x before 4.3.94 allows local users to have unspecified impact via a crafted /dev/datum device. CVE-2017-6462 Impact This vulnerability allows local users ...

K51444934: NTP vulnerability CVE-2016-7426

Security Advisory Description NTP before 4.2.8p9 rate limits responses received from the configured sources when rate limiting for all associations is enabled, which allows remote attackers to cause a denial of service prevent responses from the sources by sending responses with a spoofed source...

K55405388: NTP vulnerability CVE-2016-9311

Security Advisory Description ntpd in NTP before 4.2.8p9, when the trap service is enabled, allows remote attackers to cause a denial of service NULL pointer dereference and crash via a crafted packet. CVE-2016-9311 Impact A remote attacker may be able to send a specially crafted packet to cause ...

K87922456: NTP vulnerability CVE-2016-9310

Security Advisory Description The control mode mode 6 functionality in ntpd in NTP before 4.2.8p9 allows remote attackers to set or unset traps via a crafted control mode packet. CVE-2016-9310 Impact In default configurations, F5 products are not vulnerable. If you remove the default restrict...

K17530: NTP vulnerabilities CVE-2015-7691, CVE-2015-7692, and CVE-2015-7702

Security Advisory Description 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...

K63326092: NTP vulnerability CVE-2016-7434

Security Advisory Description The readmrulist function in NTP before 4.2.8p9 allows remote attackers to cause a denial of service crash via a crafted mrulist query. CVE-2016-7434 Impact There is no impact; F5 products are not affected by this vulnerability. Security Advisory Status F5 Product...

K16506: NTP vulnerability CVE-2015-1799

Security Advisory Description The symmetric-key feature in the receive function in ntpproto.c in ntpd in NTP 3.x and 4.x before 4.2.8p2 performs state-variable updates upon receiving certain invalid packets, which makes it easier for man-in-the-middle attackers to cause a denial of service...

K17528: NTP vulnerability CVE-2015-7850

Security Advisory Description 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. CVE-2015-7850 Impact Under certain specific conditions, an attacker can send a se...

K17516: NTP vulnerability CVE-2015-7852

Security Advisory Description 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. CVE-2015-7852 Impact While the scope of the impact is limited, an attacker may be able to craft response packets...

K17515: NTP vulnerability CVE-2015-7855

Security Advisory Description 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 ...

K17526: NTP vulnerability CVE-2015-7848

Security Advisory Description An integer overflow can occur in NTP-dev.4.3.70 leading to an out-of-bounds memory copy operation when processing a specially crafted private mode packet. The crafted packet needs to have the correct message authentication code and a valid timestamp. When processed b...