Vulnerabilities > NTP > NTP > 4.2.6

DATE CVE VULNERABILITY TITLE RISK
2015-10-06 CVE-2014-9751 Improper Input Validation vulnerability in multiple products
The read_network_packet function in ntp_io.c in ntpd in NTP 4.x before 4.2.8p1 on Linux and OS X does not properly determine whether a source IP address is an IPv6 loopback address, which makes it easier for remote attackers to spoof restricted packets, and read or write to the runtime state, by leveraging the ability to reach the ntpd machine's network interface with a packet from the ::1 address.
6.8
2015-10-06 CVE-2014-9750 Improper Input Validation vulnerability in NTP
ntp_crypto.c in ntpd in NTP 4.x before 4.2.8p1, when Autokey Authentication is enabled, allows remote attackers to obtain sensitive information from process memory or cause a denial of service (daemon crash) via a packet containing an extension field with an invalid value for the length of its value field.
5.8
2015-04-08 CVE-2015-1799 Code vulnerability in NTP
The symmetric-key feature in the receive function in ntp_proto.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 (synchronization loss) by spoofing the source IP address of a peer.
4.3
2014-12-20 CVE-2014-9296 Code vulnerability in NTP
The receive function in ntp_proto.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.
network
low complexity
ntp CWE-17
5.0
2014-12-20 CVE-2014-9295 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in NTP
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 crypto_recv function when the Autokey Authentication feature is used, (2) the ctl_putdata function, and (3) the configure function.
network
low complexity
ntp CWE-119
7.5
2014-12-20 CVE-2014-9294 Unspecified vulnerability in NTP
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.
network
low complexity
ntp
7.5
2014-12-20 CVE-2014-9293 Unspecified vulnerability in NTP
The config_auth function in ntpd in NTP before 4.2.7p11, when an auth key is not configured, improperly generates a key, which makes it easier for remote attackers to defeat cryptographic protection mechanisms via a brute-force attack.
network
low complexity
ntp
7.5