CVE-2018-8956
5.3
MEDIUM
CVSS 3.1
EPSS 2.0%
Description
ntpd in ntp 4.2.8p10, 4.2.8p11, 4.2.8p12 and 4.2.8p13 allow remote attackers to prevent a broadcast client from synchronizing its clock with a broadcast NTP server via soofed mode 3 and mode 5 packets. The attacker must either be a part of the same broadcast network or control a slave in that broadcast network that can capture certain required packets on the attacker's behalf and send them to the attacker.
How to fix CVE-2018-8956
To remediate CVE-2018-8956, upgrade the affected package to a fixed version below.
- —upgrade to 1:4.2.8p14+dfsg-1 or later
Is CVE-2018-8956 being exploited?
Low — EPSS is 2.0%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 1:4.2.8p14+dfsg-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |