CVE-2016-1549

Severity

40%

Complexity

80%

Confidentiality

48%

A malicious authenticated peer can create arbitrarily-many ephemeral associations in order to win the clock selection algorithm in ntpd in NTP 4.2.8p4 and earlier and NTPsec 3e160db8dc248a0bcb053b56a80167dc742d2b74 and a5fb34b9cc89b92a8fef2f459004865c93bb7f92 and modify a victim's clock.

A malicious authenticated peer can create arbitrarily-many ephemeral associations in order to win the clock selection algorithm in ntpd in NTP 4.2.8p4 and earlier and NTPsec 3e160db8dc248a0bcb053b56a80167dc742d2b74 and a5fb34b9cc89b92a8fef2f459004865c93bb7f92 and modify a victim's clock.

CVSS 3.0 Base Score 6.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N).

CVSS 2.0 Base Score 4. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:S/C:N/I:P/A:N).

Overview

First reported 8 years ago

2017-01-06 21:59:00

Last updated 7 years ago

2018-03-28 01:29:00

Affected Software

NTP 4.2.8 Patch 4

4.2.8

References

http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html

88200

1035705

http://www.talosintelligence.com/reports/TALOS-2016-0083/

Mitigation, Technical Description, Third Party Advisory

FreeBSD-SA-16:16

GLSA-201607-15

https://security.netapp.com/advisory/ntap-20171004-0002/

https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us

https://www.synology.com/support/security/Synology_SA_18_13

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