CVE Vulnerability

CVE-2018-5732

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

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://kb.isc.org/docs/aa-01565 Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:isc:dhcp:4.1-esv:r3:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r12:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r2:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r8:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1.2:p1:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r10:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r1:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r5:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r9:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r4:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r6:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r7:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r11:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r13:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r14:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r15:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.4.0:*:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r3b1:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r5b1:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r5rc1:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r5rc2:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r8b1:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r8rc1:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r9b1:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r9rc1:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r10b1:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r10rc1:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r11b1:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r11rc1:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r11rc2:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r12-p1:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r12b1:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r13b1:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:r14b1:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:*
cpe:2.3:a:isc:dhcp:4.1-esv:-:*:*:*:*:*:*
Information

Published : 2019-10-09 04:15

Updated : 2020-01-09 09:14

NVD link : CVE-2018-5732

Mitre link : CVE-2018-5732

Products Affected
No products.
CWE
CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer