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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

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 3.x Severity and Vector Strings:

NIST CVSS score
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

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://access.redhat.com/errata/RHSA-2019:2060 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2019:2060 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2019:3525 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2019:3525 Third Party Advisory 
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=896122 Exploit  Mailing List  Third Party Advisory 
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=896122 Exploit  Mailing List  Third Party Advisory 
https://lists.opensuse.org/opensuse-security-announce/2019-10/msg00048.html Mailing List  Third Party Advisory 
https://lists.opensuse.org/opensuse-security-announce/2019-10/msg00048.html Mailing List  Third Party Advisory 
https://lists.opensuse.org/opensuse-security-announce/2019-10/msg00049.html Mailing List  Third Party Advisory 
https://lists.opensuse.org/opensuse-security-announce/2019-10/msg00049.html Mailing List  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
NVD-CWE-noinfo Insufficient Information cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:isc:bind:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		From (including)
9.11.2
 cpe:2.3:a:isc:dhcpd:*:*:*:*:*:*:*:*
   Show Matching CPE(s) 		Up to (excluding)
4.4.1

Configuration 2 ( hide )
 cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
   Show Matching CPE(s)

Configuration 3 ( hide )
 cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*
   Show Matching CPE(s)
 cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
   Show Matching CPE(s)

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

4 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-6470
NVD Published Date:
11/01/2019
NVD Last Modified:
11/20/2024
Source:
Internet Systems Consortium (ISC)