CVE-2018-5733
HIGH7.5EPSS 10.3%Published: 1/16/2019Modified: 4/28/2026
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.
Affected packages (2)
- Alpine/dhcpfrom 0, < 4.4.1-r0
- Debian/isc-dhcpfrom 0, < 4.3.5-3.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |