CVE-2020-11868
- State
- Published
- Severity
- 5.9 Medium
- Published
- Apr 17, 2020
- Updated
- May 5, 2025
- Reserved
- Apr 17, 2020
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.0 | 5.9 Medium | CVSS:3.0/AC:H/AV:N/A:H/C:N/I:N/PR:N/S:U/UI:N | mitre |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CISA-ADP |
Weaknesses
- CWE-346 Origin Validation Error
Affected Products
| Product | Versions |
|---|---|
n/an/a |
|
References
- [debian-lts-announce] 20200505 [SECURITY] [DLA 2201-1] ntp security updatemailing-list
- openSUSE-SU-2020:0934vendor-advisory
- openSUSE-SU-2020:1007vendor-advisory
- GLSA-202007-12vendor-advisory
- https://www.oracle.com//security-alerts/cpujul2021.html
- http://support.ntp.org/bin/view/Main/NtpBug3592
- https://bugzilla.redhat.com/show_bug.cgi?id=1716665
- https://security.netapp.com/advisory/ntap-20200424-0002/
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