Home/CVE/A malicious authenticated peer can create arbitrarily-many ephemeral associations in order to win the clock selection al
CVE

CVE-2016-1549

A malicious authenticated peer can create arbitrarily-many ephemeral associations in order to win the clock selection al

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.

MEDIUM · CVSS 6.5 EPSS 0.00969
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
▤

Affected Products & Versions

1
ntpall versions
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.0 · cret@cert.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD06 Jan 2017 · 09:59 PM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
⚑

Vendor Advisories

17
suse-csafopenSUSE-SU-2024:10181-1
suse-csafopenSUSE-SU-2024:11102-1
suse-csafSUSE-SU-2018:3342-2
suse-csafSUSE-SU-2018:3386-1
suse-csafSUSE-SU-2018:3342-1
🔗

References & Sources

9
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
http://www.securityfocus.com/bid/88200
http://www.securitytracker.com/id/1035705
http://www.talosintelligence.com/reports/TALOS-2016-0083/MitigationTechnical DescriptionThird Party Advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.asc
https://security.gentoo.org/glsa/201607-15
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