CVE-2018-5733
dhcp: Reference count overflow in dhcpd allows denial of service
Severity
ModerateRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · February 28, 2018
Updated · June 30, 2026
Description
A denial of service flaw was found in the way dhcpd handled reference counting when processing client requests. A malicious DHCP client could use this flaw to trigger a reference count overflow on the server side, potentially causing dhcpd to crash, by sending large amounts of traffic.
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 3.0 · 5.9CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-190 · Integer Overflow or Wraparound