Skip to main content

CVE-2009-3563

Severity Medium
Score 6.4/10

Summary

ntp_request.c in ntpd in NTP before 4.2.4p8, and 4.2.5, allows remote attackers to cause a denial of service (CPU and bandwidth consumption) by using MODE_PRIVATE to send a spoofed (1) request or (2) response packet that triggers a continuous exchange of MODE_PRIVATE error responses between two NTP daemons.

  • LOW
  • NETWORK
  • NONE
  • PARTIAL
  • NONE
  • PARTIAL

References

Advisory Timeline

  • Published