52 matches found
DEBIAN-CVE-2016-1548
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 will reject all future legitimat...
UBUNTU-CVE-2016-9042
An exploitable denial of service vulnerability exists in the origin timestamp check functionality of ntpd 4.2.8p9. A specially crafted unauthenticated network packet can be used to reset the expected origin timestamp for target peers. Legitimate replies from targeted peers will fail the origin...
CVE-2016-7431
NTP before 4.2.8p9 allows remote attackers to bypass the origin timestamp protection mechanism via an origin timestamp of zero. NOTE: this vulnerability exists because of a CVE-2015-8138 regression...
ntpd zero origin timestamp bypass vulnerability
Network Time Protocol NTP is a protocol used to synchronize a computer's time to its server or clock source e.g., quartz clock, GPS, etc.. Synchronizing a computer's clock to UTC ensures that data interactions in a network can proceed smoothly.NTPD Network Time Protocol daemon is an operating...
NTP.org ntpd contains multiple denial of service vulnerabilities
Overview NTP.org ntpd versions ntp-4.2.7p385 up to but not including ntp-4.2.8p9 and ntp-4.3.0 up to but not including ntp-4.3.94 contain multiple denial of service vulnerabilities. Description NTP.org's ntpd, versions ntp-4.2.7p385 up to but not including ntp-4.2.8p9 and ntp-4.3.0 up to but not...
USN-3096-1: NTP vulnerabilities
Aanchal Malhotra discovered that NTP incorrectly handled authenticated broadcast mode. A remote attacker could use this issue to perform a replay attack. CVE-2015-7973 Matt Street discovered that NTP incorrectly verified peer associations of symmetric keys. A remote attacker could use this issue ...
Updated ntp packages fix security vulnerability
ntpq and ntpdc disclose the origin timestamp to unauthenticated clients, which may allow an attacker to impersonate a legitimate peer CVE-2015-8139. An attacker who is able to spoof packets with correct origin timestamps from enough servers before the expected response packets arrive at the targe...
Security Advisory 0019
Security Advisory 0019 PDF Date: April 25th, 2018 Version: 1.1 Revision| Date| Changes ---|---|--- 1.0 | May 3rd, 2016 | Initial release 1.1 | April 25th, 2018 | Updated vulnerability information for CVE-2016-1549 Arista Products vulnerability report for security vulnerabilities announcement from...
UBUNTU-CVE-2016-1548
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 will reject all future legitimat...
SUSE-SU-2016:1175-1 Security update for ntp
ntp was updated to version 4.2.8p6 to fix 12 security issues. These security issues were fixed: - CVE-2015-8158: Fixed potential infinite loop in ntpq bsc962966. - CVE-2015-8138: Zero Origin Timestamp Bypass bsc963002. - CVE-2015-7979: Off-path Denial of Service DoS attack on authenticated...
Network Time Protocol Origin Timestamp Check Impersonation Vulnerability
CERT VU357792 Summary To distinguish legitimate peer responses from forgeries, a client attempts to verify a response packet by ensuring that the origin timestamp in an incoming packet matches the transmit timestamp it transmitted in its last request. A logic error exists that allows packets with...