NVD

CVE-2018-5732 Detail

Modified

This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.

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

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

NIST: NVD

Base Score: 7.5 HIGH

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Nist CVSS score does not match with CNA score

CNA: Internet Systems Consortium (ISC)

Base Score: 7.5 HIGH

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: 5.0 MEDIUM

Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://kb.isc.org/docs/aa-01565	CVE, Internet Systems Consortium (ISC)	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-119	Improper Restriction of Operations within the Bounds of a Memory Buffer	NIST

Known Affected Software Configurations Switch to CPE 2.2

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Denotes Vulnerable Software
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Change History

4 change records found show changes

Reanalysis by NIST 1/09/2020 4:14:41 PM

Action

Type

Old Value

New Value

Changed

CPE Configuration

OR
     *cpe:2.3:a:isc:dhcp:4.1-esv:r1:*:*:*:*:*:*
     *cpe:2.3:a:isc:dhcp:4.1-esv:r10:*:*:*:*:*:*
     *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:r11:*:*:*:*:*:*
     *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:*:*:*:*:*:*
     *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:r13:*:*:*:*:*:*
     *cpe:2.3:a:isc:dhcp:4.1-esv:r13b1:*:*:*:*:*:*
     *cpe:2.3:a:isc:dhcp:4.1-esv:r14:*:*:*:*:*:*
     *cpe:2.3:a:isc:dhcp:4.1-esv:r14b1:*:*:*:*:*:*
     *cpe:2.3:a:isc:dhcp:4.1-esv:r15:*:*:*:*:*:*
     *cpe:2.3:a:isc:dhcp:4.1-esv:r15-p1:*:*:*:*:*:*
     *cpe:2.3:a:isc:dhcp:4.1-esv:r2:*:*:*:*:*:*
     *cpe:2.3:a:isc:dhcp:4.1-esv:r3:*:*:*:*:*:*
     *cpe:2.3:a:isc:dhcp:4.1-esv:r3b1:*:*:*:*:*:*
     *cpe:2.3:a:isc:dhcp:4.1-esv:r4:*:*:*:*:*:*
     *cpe:2.3:a:isc:dhcp:4.1-esv:r5:*:*:*:*:*:*
     *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:r6:*:*:*:*:*:*
     *cpe:2.3:a:isc:dhcp:4.1-esv:r7:*:*:*:*:*:*
     *cpe:2.3:a:isc:dhcp:4.1-esv:r8:*:*:*:*:*:*
     *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:r9:*:*:*:*:*:*
     *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:*:*:*:*:*:*:*:* versions from (including) 4.1.0 up to (including) 4.1.2
     *cpe:2.3:a:isc:dhcp:4.1.2:p1:*:*:*:*:*:*
     *cpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:* versions from (including) 4.2.0 up to (excluding) 4.2.8
     *cpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:* versions from (including) 4.3.0 up to (excluding) 4.3.6
     *cpe:2.3:a:isc:dhcp:4.4.0:*:*:*:*:*:*:*

OR
     *cpe:2.3:a:isc:dhcp:4.1-esv:-:*:*:*:*:*:*
     *cpe:2.3:a:isc:dhcp:4.1-esv:r1:*:*:*:*:*:*
     *cpe:2.3:a:isc:dhcp:4.1-esv:r10:*:*:*:*:*:*
     *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:r11:*:*:*:*:*:*
     *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:*:*:*:*:*:*
     *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:r13:*:*:*:*:*:*
     *cpe:2.3:a:isc:dhcp:4.1-esv:r13b1:*:*:*:*:*:*
     *cpe:2.3:a:isc:dhcp:4.1-esv:r14:*:*:*:*:*:*
     *cpe:2.3:a:isc:dhcp:4.1-esv:r14b1:*:*:*:*:*:*
     *cpe:2.3:a:isc:dhcp:4.1-esv:r15:*:*:*:*:*:*
     *cpe:2.3:a:isc:dhcp:4.1-esv:r2:*:*:*:*:*:*
     *cpe:2.3:a:isc:dhcp:4.1-esv:r3:*:*:*:*:*:*
     *cpe:2.3:a:isc:dhcp:4.1-esv:r3b1:*:*:*:*:*:*
     *cpe:2.3:a:isc:dhcp:4.1-esv:r4:*:*:*:*:*:*
     *cpe:2.3:a:isc:dhcp:4.1-esv:r5:*:*:*:*:*:*
     *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:r6:*:*:*:*:*:*
     *cpe:2.3:a:isc:dhcp:4.1-esv:r7:*:*:*:*:*:*
     *cpe:2.3:a:isc:dhcp:4.1-esv:r8:*:*:*:*:*:*
     *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:r9:*:*:*:*:*:*
     *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:*:*:*:*:*:*:*:* versions from (including) 4.1.0 up to (including) 4.1.2
     *cpe:2.3:a:isc:dhcp:4.1.2:p1:*:*:*:*:*:*
     *cpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:* versions from (including) 4.2.0 up to (excluding) 4.2.8
     *cpe:2.3:a:isc:dhcp:*:*:*:*:*:*:*:* versions from (including) 4.3.0 up to (excluding) 4.3.6
     *cpe:2.3:a:isc:dhcp:4.4.0:*:*:*:*:*:*:*

Initial Analysis by NIST 10/17/2019 9:43:31 PM

Action	Type	Old Value	New Value
Added	CVSS V3.1		NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Added	CVSS V2		NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Added	CWE		NIST CWE-119
Added	CPE Configuration		OR cpe:2.3:a:isc:dhcp:4.1-esv:r1::::::* cpe:2.3:a:isc:dhcp:4.1-esv:r10::::::* 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:r11::::::* 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::::::* 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:r13::::::* cpe:2.3:a:isc:dhcp:4.1-esv:r13b1::::::* cpe:2.3:a:isc:dhcp:4.1-esv:r14::::::* cpe:2.3:a:isc:dhcp:4.1-esv:r14b1::::::* cpe:2.3:a:isc:dhcp:4.1-esv:r15::::::* cpe:2.3:a:isc:dhcp:4.1-esv:r15-p1::::::* cpe:2.3:a:isc:dhcp:4.1-esv:r2::::::* cpe:2.3:a:isc:dhcp:4.1-esv:r3::::::* cpe:2.3:a:isc:dhcp:4.1-esv:r3b1::::::* cpe:2.3:a:isc:dhcp:4.1-esv:r4::::::* cpe:2.3:a:isc:dhcp:4.1-esv:r5::::::* 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:r6::::::* cpe:2.3:a:isc:dhcp:4.1-esv:r7::::::* cpe:2.3:a:isc:dhcp:4.1-esv:r8::::::* 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:r9::::::* 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::::::::* versions from (including) 4.1.0 up to (including) 4.1.2 cpe:2.3:a:isc:dhcp:4.1.2:p1::::::* cpe:2.3:a:isc:dhcp::::::::* versions from (including) 4.2.0 up to (excluding) 4.2.8 cpe:2.3:a:isc:dhcp::::::::* versions from (including) 4.3.0 up to (excluding) 4.3.6 cpe:2.3:a:isc:dhcp:4.4.0:::::::
Changed	Reference Type	https://kb.isc.org/docs/aa-01565 No Types Assigned	https://kb.isc.org/docs/aa-01565 Vendor Advisory

Quick Info

CVE Dictionary Entry:
CVE-2018-5732
NVD Published Date:
10/09/2019
NVD Last Modified:
11/20/2024
Source:
Internet Systems Consortium (ISC)

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Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

CVE-2018-5732 Detail

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Change History

CVE Modified by CVE 11/20/2024 11:09:16 PM

CVE Modified by Internet Systems Consortium (ISC) 5/14/2024 1:22:33 AM

Reanalysis by NIST 1/09/2020 4:14:41 PM

Initial Analysis by NIST 10/17/2019 9:43:31 PM

Quick Info