CVE-2020-11868

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.60%
Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory gentoo.org Vendor Advisory ntp.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://lists.debian.org/debian-lts-announce/2020/05/msg00004.html third party advisory mailing list
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00005.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00044.html mailing list third party advisory vendor advisory
https://security.gentoo.org/glsa/202007-12 third party advisory vendor advisory
https://www.oracle.com//security-alerts/cpujul2021.html third party advisory patch
http://support.ntp.org/bin/view/Main/NtpBug3592 patch vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1716665 issue tracking third party advisory
https://security.netapp.com/advisory/ntap-20200424-0002/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-11868?
CVE-2020-11868 has been scored as a high severity vulnerability.
How to fix CVE-2020-11868?
To fix CVE-2020-11868, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-11868 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-11868 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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