vulnerability
Ubuntu: (Multiple Advisories) (CVE-2018-5733): DHCP vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:N/AC:L/Au:N/C:N/I:N/A:P) | Mar 1, 2018 | Apr 26, 2018 | Aug 18, 2025 |
Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
Mar 1, 2018
Added
Apr 26, 2018
Modified
Aug 18, 2025
Description
A malicious client which is allowed to send very large amounts of traffic (billions of packets) to a DHCP server can eventually overflow a 32-bit reference counter, potentially causing dhcpd to crash. Affects ISC DHCP 4.1.0 -> 4.1-ESV-R15, 4.2.0 -> 4.2.8, 4.3.0 -> 4.3.6, 4.4.0.
Solutions
ubuntu-upgrade-isc-dhcp-clientubuntu-upgrade-isc-dhcp-relayubuntu-upgrade-isc-dhcp-serverubuntu-upgrade-isc-dhcp-server-ldap
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