CVE-2018-5733
7.5
HIGH
CVSS 3.1
EPSS 14.5%
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.
How to fix CVE-2018-5733
To remediate CVE-2018-5733, upgrade the affected package to a fixed version below.
- Alpine/dhcp—upgrade to 4.4.1-r0 or later
- —upgrade to 4.3.5-3.1 or later
Is CVE-2018-5733 being exploited?
Moderate — EPSS is 14.5%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (2)
- from 0, < 4.4.1-r0
- from 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 |