Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2020-11868

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.

Published

2020-04-17T04:15:10.987

Last Modified

2025-05-05T17:15:57.667

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-346
Type: Secondary
CWE-346

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	ntp	ntp	≤ 4.2.7	Yes
Application	ntp	ntp	< 4.3.100	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Application	ntp	ntp	4.2.8	Yes
Operating System	redhat	enterprise_linux	7.0	Yes
Application	netapp	data_ontap	-	Yes
Application	netapp	hci_management_node	-	Yes
Application	netapp	solidfire	-	Yes
Application	netapp	vasa_provider_for_clustered_data_ontap	≥ 7.2	Yes
Application	netapp	vasa_provider_for_clustered_data_ontap	≥ 7.2	Yes
Application	netapp	virtual_storage_console	≥ 7.2	Yes
Operating System	netapp	clustered_data_ontap	-	Yes
Operating System	netapp	hci_storage_node_firmware	-	Yes
Hardware	netapp	hci_storage_node	-	No
Operating System	netapp	fabric-attached_storage_8300_firmware	-	Yes
Hardware	netapp	fabric-attached_storage_8300	-	No
Operating System	netapp	fabric-attached_storage_8700_firmware	-	Yes
Hardware	netapp	fabric-attached_storage_8700	-	No
Operating System	netapp	fabric-attached_storage_a400_firmware	-	Yes
Hardware	netapp	fabric-attached_storage_a400	-	No
Operating System	netapp	all_flash_fabric-attached_storage_8300_firmware	-	Yes
Hardware	netapp	all_flash_fabric-attached_storage_8300	-	No
Operating System	netapp	all_flash_fabric-attached_storage_8700_firmware	-	Yes
Hardware	netapp	all_flash_fabric-attached_storage_8700	-	No
Operating System	netapp	all_flash_fabric-attached_storage_a400_firmware	-	Yes
Hardware	netapp	all_flash_fabric-attached_storage_a400	-	No
Operating System	debian	debian_linux	8.0	Yes
Operating System	opensuse	leap	15.1	Yes
Operating System	opensuse	leap	15.2	Yes

References

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00005.html Mailing List, Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00044.html Mailing List, Third Party Advisory ([email protected])
http://support.ntp.org/bin/view/Main/NtpBug3592 Patch, Vendor Advisory ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=1716665 Issue Tracking, Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2020/05/msg00004.html Mailing List, Third Party Advisory ([email protected])
https://security.gentoo.org/glsa/202007-12 Third Party Advisory ([email protected])
https://security.netapp.com/advisory/ntap-20200424-0002/ Third Party Advisory ([email protected])
https://www.oracle.com//security-alerts/cpujul2021.html Patch, Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00005.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00044.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://support.ntp.org/bin/view/Main/NtpBug3592 Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=1716665 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2020/05/msg00004.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/202007-12 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20200424-0002/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.oracle.com//security-alerts/cpujul2021.html Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)