CVE-2016-1548

Source
https://nvd.nist.gov/vuln/detail/CVE-2016-1548
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2016-1548.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2016-1548
Downstream
Related
Published
2017-01-06T21:59:00Z
Modified
2025-04-20T01:37:25Z
Severity
  • 7.2 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L CVSS Calculator
Summary
[none]
Details

An attacker can spoof a packet from a legitimate ntpd server with an origin timestamp that matches the peer->dst timestamp recorded for that server. After making this switch, the client in NTP 4.2.8p4 and earlier and NTPSec aa48d001683e5b791a743ec9c575aaf7d867a2b0c will reject all future legitimate server responses. It is possible to force the victim client to move time after the mode has been changed. ntpq gives no indication that the mode has been switched.

References

Affected packages