Upstream information

CVE-2019-6470 at MITRE

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.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 5
Vector AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database
Base Score 7.5
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Access Vector Network
Access Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
CVSSv3 Version 3.1
SUSE Bugzilla entry: 1134078 [IN_PROGRESS]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE CaaS Platform 3.0
  • dhcp >= 4.3.3-10.19.1
  • dhcp-client >= 4.3.3-10.19.1
Patchnames:
SUSE-CAASP-3.0-2019-2727
SUSE Linux Enterprise Desktop 12 SP4
  • dhcp >= 4.3.3-10.19.1
  • dhcp-client >= 4.3.3-10.19.1
Patchnames:
SUSE-SLE-DESKTOP-12-SP4-2019-2727
SUSE Linux Enterprise Module for Basesystem 15
  • dhcp >= 4.3.5-6.3.1
  • dhcp-client >= 4.3.5-6.3.1
  • dhcp-devel >= 4.3.5-6.3.1
Patchnames:
SUSE-SLE-Module-Basesystem-15-2019-2657
SUSE Linux Enterprise Module for Basesystem 15 SP1
  • dhcp >= 4.3.5-6.3.1
  • dhcp-client >= 4.3.5-6.3.1
  • dhcp-devel >= 4.3.5-6.3.1
Patchnames:
SUSE-SLE-Module-Basesystem-15-SP1-2019-2657
SUSE Linux Enterprise Module for Open Buildservice Development Tools 15
  • dhcp >= 4.3.5-6.3.1
  • dhcp-doc >= 4.3.5-6.3.1
Patchnames:
SUSE-SLE-Module-Development-Tools-OBS-15-2019-2657
SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 SP1
  • dhcp >= 4.3.5-6.3.1
  • dhcp-doc >= 4.3.5-6.3.1
Patchnames:
SUSE-SLE-Module-Development-Tools-OBS-15-SP1-2019-2657
SUSE Linux Enterprise Module for Server Applications 15
  • dhcp >= 4.3.5-6.3.1
  • dhcp-relay >= 4.3.5-6.3.1
  • dhcp-server >= 4.3.5-6.3.1
Patchnames:
SUSE-SLE-Module-Server-Applications-15-2019-2657
SUSE Linux Enterprise Module for Server Applications 15 SP1
  • dhcp >= 4.3.5-6.3.1
  • dhcp-relay >= 4.3.5-6.3.1
  • dhcp-server >= 4.3.5-6.3.1
Patchnames:
SUSE-SLE-Module-Server-Applications-15-SP1-2019-2657
SUSE Linux Enterprise Server 12 SP4
  • dhcp >= 4.3.3-10.19.1
  • dhcp-client >= 4.3.3-10.19.1
  • dhcp-relay >= 4.3.3-10.19.1
  • dhcp-server >= 4.3.3-10.19.1
Patchnames:
SUSE-SLE-SERVER-12-SP4-2019-2727
SUSE Linux Enterprise Server 12 SP5
  • dhcp >= 4.3.3-10.19.1
  • dhcp-client >= 4.3.3-10.19.1
  • dhcp-relay >= 4.3.3-10.19.1
  • dhcp-server >= 4.3.3-10.19.1
Patchnames:
SUSE-SLE-SERVER-12-SP5-2019-2727
SUSE Linux Enterprise Server for SAP Applications 12 SP4
  • dhcp >= 4.3.3-10.19.1
  • dhcp-client >= 4.3.3-10.19.1
  • dhcp-relay >= 4.3.3-10.19.1
  • dhcp-server >= 4.3.3-10.19.1
Patchnames:
SUSE-SLE-SERVER-12-SP4-2019-2727
SUSE Linux Enterprise Server for SAP Applications 12 SP5
  • dhcp >= 4.3.3-10.19.1
  • dhcp-client >= 4.3.3-10.19.1
  • dhcp-relay >= 4.3.3-10.19.1
  • dhcp-server >= 4.3.3-10.19.1
Patchnames:
SUSE-SLE-SERVER-12-SP5-2019-2727
SUSE Linux Enterprise Software Development Kit 12 SP4
  • dhcp >= 4.3.3-10.19.1
  • dhcp-devel >= 4.3.3-10.19.1
Patchnames:
SUSE-SLE-SDK-12-SP4-2019-2727
SUSE Linux Enterprise Software Development Kit 12 SP5
  • dhcp >= 4.3.3-10.19.1
  • dhcp-devel >= 4.3.3-10.19.1
Patchnames:
SUSE-SLE-SDK-12-SP5-2019-2727
openSUSE Leap 15.0
  • dhcp >= 4.3.5-lp150.5.3.1
  • dhcp-client >= 4.3.5-lp150.5.3.1
  • dhcp-client-debuginfo >= 4.3.5-lp150.5.3.1
  • dhcp-debuginfo >= 4.3.5-lp150.5.3.1
  • dhcp-debugsource >= 4.3.5-lp150.5.3.1
  • dhcp-devel >= 4.3.5-lp150.5.3.1
  • dhcp-doc >= 4.3.5-lp150.5.3.1
  • dhcp-relay >= 4.3.5-lp150.5.3.1
  • dhcp-relay-debuginfo >= 4.3.5-lp150.5.3.1
  • dhcp-server >= 4.3.5-lp150.5.3.1
  • dhcp-server-debuginfo >= 4.3.5-lp150.5.3.1
Patchnames:
openSUSE-2019-2340
openSUSE Leap 15.1
  • dhcp >= 4.3.5-lp151.6.3.1
  • dhcp-client >= 4.3.5-lp151.6.3.1
  • dhcp-client-debuginfo >= 4.3.5-lp151.6.3.1
  • dhcp-debuginfo >= 4.3.5-lp151.6.3.1
  • dhcp-debugsource >= 4.3.5-lp151.6.3.1
  • dhcp-devel >= 4.3.5-lp151.6.3.1
  • dhcp-doc >= 4.3.5-lp151.6.3.1
  • dhcp-relay >= 4.3.5-lp151.6.3.1
  • dhcp-relay-debuginfo >= 4.3.5-lp151.6.3.1
  • dhcp-server >= 4.3.5-lp151.6.3.1
  • dhcp-server-debuginfo >= 4.3.5-lp151.6.3.1
Patchnames:
openSUSE-2019-2341


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
CaaS Platform 1.0 dhcp Not affected
CaaS Platform 2.0 dhcp Not affected
CaaS Platform 3.0 dhcp Released
SUSE Linux Enterprise Desktop 12 SP3 dhcp Not affected
SUSE Linux Enterprise Desktop 12 SP4 dhcp Released
SUSE Linux Enterprise High Performance Computing 12 dhcp Released
SUSE Linux Enterprise Module for Basesystem 15 GA dhcp Released
SUSE Linux Enterprise Module for Basesystem 15 SP1 dhcp Released
SUSE Linux Enterprise Module for Server Applications 15 GA dhcp Released
SUSE Linux Enterprise Module for Server Applications 15 SP1 dhcp Released
SUSE Linux Enterprise SDK 12 SP3 dhcp Not affected
SUSE Linux Enterprise SDK 12 SP4 dhcp Released
SUSE Linux Enterprise Server 11 SP3 LTSS dhcp Not affected
SUSE Linux Enterprise Server 11 SP4 LTSS dhcp Not affected
SUSE Linux Enterprise Server 12 GA LTSS dhcp Not affected
SUSE Linux Enterprise Server 12 SP1 LTSS dhcp Not affected
SUSE Linux Enterprise Server 12 SP2 LTSS dhcp Not affected
SUSE Linux Enterprise Server 12 SP3 dhcp Not affected
SUSE Linux Enterprise Server 12 SP4 dhcp Released
SUSE Linux Enterprise Server 12 SP5 dhcp Released
SUSE Linux Enterprise Server for SAP Applications 11 SP3 dhcp Not affected
SUSE Linux Enterprise Server for SAP Applications 12 GA dhcp Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 dhcp Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 dhcp Released