CVE-2016-2774
dhcp: unclosed TCP connections to OMAPI or failover ports can cause DoS
Severity
ModerateRed Hat Product Security
CVSS 2.0
Review impact separately from score.
Published · March 7, 2016
Updated · November 21, 2025
Description
A resource-consumption flaw was discovered in the DHCP server. dhcpd did not restrict the number of open connections to OMAPI and failover ports. A remote attacker able to establish TCP connections to one of these ports could use this flaw to cause dhcpd to exit unexpectedly, stop responding requests, or exhaust system sockets (denial of service).
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 · 2.6AV:N/AC:H/Au:N/C:N/I:N/A:P
CWE-400 · Uncontrolled Resource Consumption