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Vulnerability Details : 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
Publish Date : 2019-10-09 Last Update Date : 2020-01-09
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- CVSS Scores & Vulnerability Types

CVSS Score
5.0
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Overflow
CWE ID 119

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2018:0469: dhcp security update (Important) oval:com.redhat.rhsa:def:20180469 unix
RHSA-2018:0483: dhcp security update (Important) oval:com.redhat.rhsa:def:20180483 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2018-5732

# Product Type Vendor Product Version Update Edition Language
1 Application ISC Dhcp * * * * Version Details Vulnerabilities
2 Application ISC Dhcp 4.1-esv R5 * * Version Details Vulnerabilities
3 Application ISC Dhcp 4.1-esv R15 * * Version Details Vulnerabilities
4 Application ISC Dhcp 4.1-esv R9rc1 * * Version Details Vulnerabilities
5 Application ISC Dhcp 4.1-esv R11 * * Version Details Vulnerabilities
6 Application ISC Dhcp 4.1-esv R8 * * Version Details Vulnerabilities
7 Application ISC Dhcp 4.1-esv R12b1 * * Version Details Vulnerabilities
8 Application ISC Dhcp 4.1-esv - * * Version Details Vulnerabilities
9 Application ISC Dhcp 4.1-esv R5b1 * * Version Details Vulnerabilities
10 Application ISC Dhcp 4.1-esv R2 * * Version Details Vulnerabilities
11 Application ISC Dhcp 4.1-esv R11b1 * * Version Details Vulnerabilities
12 Application ISC Dhcp 4.1-esv R8b1 * * Version Details Vulnerabilities
13 Application ISC Dhcp 4.1-esv R13 * * Version Details Vulnerabilities
14 Application ISC Dhcp 4.1-esv R1 * * Version Details Vulnerabilities
15 Application ISC Dhcp 4.1-esv R5rc1 * * Version Details Vulnerabilities
16 Application ISC Dhcp 4.1-esv R3 * * Version Details Vulnerabilities
17 Application ISC Dhcp 4.1-esv R11rc1 * * Version Details Vulnerabilities
18 Application ISC Dhcp 4.1-esv R8rc1 * * Version Details Vulnerabilities
19 Application ISC Dhcp 4.1-esv R13b1 * * Version Details Vulnerabilities
20 Application ISC Dhcp 4.1-esv R10 * * Version Details Vulnerabilities
21 Application ISC Dhcp 4.1-esv R5rc2 * * Version Details Vulnerabilities
22 Application ISC Dhcp 4.1-esv R11rc2 * * Version Details Vulnerabilities
23 Application ISC Dhcp 4.1-esv R3b1 * * Version Details Vulnerabilities
24 Application ISC Dhcp 4.1-esv R9 * * Version Details Vulnerabilities
25 Application ISC Dhcp 4.1-esv R14 * * Version Details Vulnerabilities
26 Application ISC Dhcp 4.1-esv R10b1 * * Version Details Vulnerabilities
27 Application ISC Dhcp 4.1-esv R6 * * Version Details Vulnerabilities
28 Application ISC Dhcp 4.1-esv R12 * * Version Details Vulnerabilities
29 Application ISC Dhcp 4.1-esv R4 * * Version Details Vulnerabilities
30 Application ISC Dhcp 4.1-esv R9b1 * * Version Details Vulnerabilities
31 Application ISC Dhcp 4.1-esv R14b1 * * Version Details Vulnerabilities
32 Application ISC Dhcp 4.1-esv R10rc1 * * Version Details Vulnerabilities
33 Application ISC Dhcp 4.1-esv R7 * * Version Details Vulnerabilities
34 Application ISC Dhcp 4.1-esv R12-p1 * * Version Details Vulnerabilities
35 Application ISC Dhcp 4.1.2 P1 * * Version Details Vulnerabilities
36 Application ISC Dhcp 4.4.0 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
ISC Dhcp 36

- References For CVE-2018-5732

https://kb.isc.org/docs/aa-01565 CONFIRM

- Metasploit Modules Related To CVE-2018-5732

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)
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