NVD

CVE-2019-6470 Detail

Description

There had existed in one of the ISC BIND libraries a bug in a function that was used by dhcpd when operating in DHCPv6 mode. There was also a bug in dhcpd relating to the use of this function per its documentation, but the bug in the library function prevented this from causing any harm. All releases of dhcpd from ISC contain copies of this, and other, BIND libraries in combinations that have been tested prior to release and are known to not present issues like this. Some third-party packagers of ISC software have modified the dhcpd source, BIND source, or version matchup in ways that create the crash potential. Based on reports available to ISC, the crash probability is large and no analysis has been done on how, or even if, the probability can be manipulated by an attacker. Affects: Builds of dhcpd versions prior to version 4.4.1 when using BIND versions 9.11.2 or later, or BIND versions with specific bug fixes backported to them. ISC does not have access to comprehensive version lists for all repackagings of dhcpd that are vulnerable. In particular, builds from other vendors may also be affected. Operators are advised to consult their vendor documentation.

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: 6.5 MEDIUM

Vector: CVSS:3.1/AV:A/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://access.redhat.com/errata/RHSA-2019:2060	CVE, Internet Systems Consortium (ISC)	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3525	CVE, Internet Systems Consortium (ISC)	Third Party Advisory
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=896122	CVE, Internet Systems Consortium (ISC)	Exploit Mailing List Third Party Advisory
https://lists.opensuse.org/opensuse-security-announce/2019-10/msg00048.html	CVE, Internet Systems Consortium (ISC)	Mailing List Third Party Advisory
https://lists.opensuse.org/opensuse-security-announce/2019-10/msg00049.html	CVE, Internet Systems Consortium (ISC)	Mailing List Third Party Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
NVD-CWE-noinfo	Insufficient Information	NIST

Known Affected Software Configurations Switch to CPE 2.2

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Denotes Vulnerable Software
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Change History

5 change records found show changes

Modified Analysis by NIST 4/11/2025 10:55:14 AM

Action

Type

Old Value

New Value

Changed

CPE Configuration

OR
          *cpe:2.3:a:isc:dhcpd:*:*:*:*:*:*:*:* versions up to (excluding) 4.4.1
          *cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:* versions from (including) 9.11.2

OR
          *cpe:2.3:a:isc:dhcpd:*:*:*:*:*:*:*:* versions up to (excluding) 4.4.1

Changed

CPE Configuration

OR
          *cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
          *cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
          *cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*

Record truncated, showing 2048 of 4221 characters.
View Entire Change Record

OR
          *cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
          *cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
          *cpe:2.3:o:redhat:enterprise_linux_for_scientific_computing:7.0:*:*:*:*:*:*:*
          *cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
          *cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:7.0:*:*:*:*:*:*:*
          *cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian:7.0:*:*:*:*:*:*:*
          *cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:7.0:*:*:*:*:*:*:*
          *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
          *cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:*:*:*:*:*:*:*
          *cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:*:*:*:*:*:*:*
          *cpe:2.3:o:redhat:enterprise_linux_eus:8.1:*:*:*:*:*:*:*
          *cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:*
          *cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:*
          *cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:*
          *cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:*
          *cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:*:*:*:*:*:*:*
          *cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4:*:*:*:*:*:*:*
          *cpe:2.3:o:redhat:enterprise_linux_server_for_power_little_endian_update_services_for_sap_solutions:8.1:*:*:*:*:*:*:*
          *cpe:2.3:o:redhat:enterprise_linux_for_arm_64:8.0:*:*:*:*:*:*:*
          *cpe:2.3:o:redhat:enterprise_linux_eus:8.6:*:*:*:*:*:*:*
          *cpe:2.3:o:redhat:enterprise_linux_eus:8.8:*:*:*:*:*:*:*
          *cpe:2.3:o:redhat:enterprise_linux_server_aus:8.6:*:*:*:*:*:*:*
          *cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.6_s390x:*:*:*:*:*:*:*
          *cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.8_s390x:*:*:*:*:*:*:*
          *cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.4_ppc64le:*:*:*:*:*:*:*
          *cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_e

Initial Analysis by NIST 11/06/2019 4:52:25 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 NVD-CWE-noinfo
Added	CPE Configuration		OR cpe:2.3:a:isc:bind::::::::* versions from (including) 9.11.2 cpe:2.3:a:isc:dhcpd::::::::* versions up to (excluding) 4.4.1
Added	CPE Configuration		OR cpe:2.3:o:opensuse:leap:15.0::::::: cpe:2.3:o:opensuse:leap:15.1:::::::
Added	CPE Configuration		OR cpe:2.3:o:redhat:enterprise_linux_desktop:7.0::::::: cpe:2.3:o:redhat:enterprise_linux_server:7.0::::::: cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:::::::
Changed	Reference Type	https://access.redhat.com/errata/RHSA-2019:2060 No Types Assigned	https://access.redhat.com/errata/RHSA-2019:2060 Third Party Advisory
Changed	Reference Type	https://access.redhat.com/errata/RHSA-2019:3525 No Types Assigned	https://access.redhat.com/errata/RHSA-2019:3525 Third Party Advisory
Changed	Reference Type	https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=896122 No Types Assigned	https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=896122 Exploit, Mailing List, Third Party Advisory
Changed	Reference Type	https://lists.opensuse.org/opensuse-security-announce/2019-10/msg00048.html No Types Assigned	https://lists.opensuse.org/opensuse-security-announce/2019-10/msg00048.html Mailing List, Third Party Advisory
Changed	Reference Type	https://lists.opensuse.org/opensuse-security-announce/2019-10/msg00049.html No Types Assigned	https://lists.opensuse.org/opensuse-security-announce/2019-10/msg00049.html Mailing List, Third Party Advisory

Quick Info

CVE Dictionary Entry:
CVE-2019-6470
NVD Published Date:
11/01/2019
NVD Last Modified:
04/11/2025
Source:
Internet Systems Consortium (ISC)

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Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

CVE-2019-6470 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

Modified Analysis by NIST 4/11/2025 10:55:14 AM

CVE Modified by CVE 11/20/2024 11:46:30 PM

CVE Modified by Internet Systems Consortium (ISC) 5/14/2024 2:04:41 AM

Initial Analysis by NIST 11/06/2019 4:52:25 PM

CVE Modified by Internet Systems Consortium (ISC) 11/05/2019 8:15:24 PM

Quick Info