NULL pointer dereference in Ntp

CVE-2016-9311

ntpd in NTP before 4.2.8p9, when the trap service is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted packet.

EPSS: 0.112 (95.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

  • Ntp
  • N/a — versions n/a

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2016-9311?
CVE-2016-9311 is a medium-severity vulnerability in Ntp, classified under NULL Pointer Dereference. CVSS score: 5.9/10. Published 2017-01-13.
How severe is CVE-2016-9311?
Medium severity. CVSS v3 base score is 5.9 out of 10.
Is CVE-2016-9311 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.