CVE-2016-1548
ntp: ntpd switching to interleaved mode with spoofed packets
Severity
ModerateRed Hat Product Security
CVSS 2.0
Review impact separately from score.
Published · April 26, 2016
Updated · May 7, 2026
Description
It was found that an ntpd client could be forced to change from basic client/server mode to the interleaved symmetric mode. A remote attacker could use a spoofed packet that, when processed by an ntpd client, would cause that client to reject all future legitimate server responses, effectively disabling time synchronization on that client.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 2.0 · 6.4AV:N/AC:L/Au:N/C:N/I:P/A:P
CWE not specified