CVE-2018-5732
HIGH7.5EPSS 2.5%isc-dhcp - security update
Published: 10/9/2019Modified: 4/28/2026
Description
Failure to properly bounds-check a buffer used for processing DHCP options allows a malicious server (or an entity masquerading as a server) to cause a buffer overflow (and resulting crash) in dhclient by sending a response containing a specially constructed options section. Affects ISC DHCP versions 4.1.0 -> 4.1-ESV-R15, 4.2.0 -> 4.2.8, 4.3.0 -> 4.3.6, 4.4.0
Affected packages (3)
- Alpine/dhcpfrom 0, < 4.4.1-r0
- Debian/isc-dhcpfrom 0, < 4.3.5-3.1
- Debian/isc-dhcpfrom 0, < 4.2.2.dfsg.1-5+deb70u9
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 |