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CVE-2020-11868

Published: Apr 17, 2020Updated: May 5, 2025 Sources: CVE List NVD BDU csafCWE-346
NVD MITRE
7.5CVSSHIGH
EPSS Score
2.1%
Top 20.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

ntpd in ntp before 4.2.8p14 and 4.3.x before 4.3.100 allows an off-path attacker to block unauthenticated synchronization via a server mode packet with a spoofed source IP address, because transmissions are rescheduled even when a packet lacks a valid origin timestamp.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-346

Affected Products

ntpntp
On-prem
Networking Infrastructure / dns-dhcp-ntp
enterprise linuxredhat
On-premOS
Operating Systems / linux-distro
data ontapnetappHardware Firmware
hci management nodenetappHardware Firmware
solidfirenetappHardware Firmware
ntposs-projectNetworking Infrastructureaka ntp daemon
redhatcommercialUSOperating Systemsaka red hat
netappcommercialUSHardware Firmware
and 19 more affected products View all →

Exploitability

Official Patch Available

References

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00005.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00044.html
lists.opensuse.org
http://support.ntp.org/bin/view/Main/NtpBug3592
support.ntp.org
and 28 more references View all →

Timeline

Published
Apr 17, 2020
Last Updated
May 5, 2025

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