CVE-2018-5732
HIGHISC DHCP <4.1-ESV-R15, 4.2.8, 4.3.6, 4.4 - Buffer Overflow
Title source: llmDescription
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
References (1)
Core 1
Core References
Vendor Advisory x_refsource_confirm
https://kb.isc.org/docs/aa-01565
Scores
CVSS v3
7.5
EPSS
0.0252
EPSS Percentile
85.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-119
Status
published
Products (4)
isc/dhcp
4.1-esv (33 CPE variants)
isc/dhcp
4.1.2 p1
isc/dhcp
4.4.0
isc/dhcp
4.1.0 - 4.1.2
Published
Oct 09, 2019
Tracked Since
Feb 18, 2026