Upstream information

CVE-2016-2774 at MITRE

Description

ISC DHCP 4.1.x before 4.1-ESV-R13 and 4.2.x and 4.3.x before 4.3.4 does not restrict the number of concurrent TCP sessions, which allows remote attackers to cause a denial of service (INSIST assertion failure or request-processing outage) by establishing many sessions.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database SUSE
Base Score 7.1 4.3
Vector AV:N/AC:M/Au:N/C:N/I:N/A:C AV:N/AC:M/Au:N/C:N/I:N/A:P
Access Vector Network Network
Access Complexity Medium Medium
Authentication None None
Confidentiality Impact None None
Integrity Impact None None
Availability Impact Complete Partial
CVSS v3 Scores
  National Vulnerability Database
Base Score 5.9
Vector CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
CVSSv3 Version 3
SUSE Bugzilla entry: 969820 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
Image SLES12-SP4-Azure-BYOS
Image SLES12-SP4-EC2-HVM-BYOS
Image SLES12-SP4-GCE-BYOS
Image SLES12-SP4-OCI-BYOS
Image SLES12-SP4-SAP-Azure
Image SLES12-SP4-SAP-Azure-BYOS
Image SLES12-SP4-SAP-Azure-LI-BYOS-Production
Image SLES12-SP4-SAP-Azure-VLI-BYOS-Production
Image SLES12-SP4-SAP-EC2-HVM
Image SLES12-SP4-SAP-EC2-HVM-BYOS
Image SLES12-SP4-SAP-GCE
Image SLES12-SP4-SAP-GCE-BYOS
Image SLES12-SP4-SAP-OCI-BYOS
Image SLES12-SP5-Azure-BYOS
Image SLES12-SP5-Azure-Basic-On-Demand
Image SLES12-SP5-Azure-HPC-BYOS
Image SLES12-SP5-Azure-HPC-On-Demand
Image SLES12-SP5-Azure-SAP-BYOS
Image SLES12-SP5-Azure-SAP-On-Demand
Image SLES12-SP5-Azure-Standard-On-Demand
Image SLES12-SP5-EC2-BYOS
Image SLES12-SP5-EC2-ECS-On-Demand
Image SLES12-SP5-EC2-On-Demand
Image SLES12-SP5-EC2-SAP-BYOS
Image SLES12-SP5-EC2-SAP-On-Demand
Image SLES12-SP5-GCE-BYOS
Image SLES12-SP5-GCE-On-Demand
Image SLES12-SP5-GCE-SAP-BYOS
Image SLES12-SP5-GCE-SAP-On-Demand
Image SLES12-SP5-OCI-BYOS-BYOS
Image SLES12-SP5-OCI-BYOS-SAP-BYOS
Image SLES12-SP5-SAP-Azure-LI-BYOS-Production
Image SLES12-SP5-SAP-Azure-VLI-BYOS-Production
  • dhcp >= 4.3.3-9.1
  • dhcp-client >= 4.3.3-9.1
SUSE Liberty Linux 7
  • dhclient >= 4.2.5-47.el7
  • dhcp >= 4.2.5-47.el7
  • dhcp-common >= 4.2.5-47.el7
  • dhcp-devel >= 4.2.5-47.el7
  • dhcp-libs >= 4.2.5-47.el7
 Patchnames:
RHSA-2016:2590
SUSE Linux Enterprise Desktop 11 SP4
SUSE Linux Enterprise Software Development Kit 11 SP4
  • dhcp-devel >= 4.2.4.P2-0.27.1
 Patchnames:
sdksp4-dhcp-12688
SUSE Linux Enterprise Desktop 12 SP1
  • dhcp >= 4.3.3-9.1
  • dhcp-client >= 4.3.3-9.1
  • dhcp-devel >= 4.3.3-9.1
 Patchnames:
SUSE-SLE-DESKTOP-12-SP1-2016-1048
SUSE-SLE-SDK-12-SP1-2016-1048
SUSE Linux Enterprise Desktop 12
  • dhcp >= 4.2.6-14.6.1
  • dhcp-client >= 4.2.6-14.6.1
  • dhcp-devel >= 4.2.6-14.6.1
 Patchnames:
SUSE-SLE-DESKTOP-12-2016-1002
SUSE-SLE-SDK-12-2016-1002
SUSE Linux Enterprise Point of Sale 11 SP3
  • dhcp >= 4.2.4.P2-0.27.1
  • dhcp-client >= 4.2.4.P2-0.27.1
  • dhcp-relay >= 4.2.4.P2-0.27.1
  • dhcp-server >= 4.2.4.P2-0.27.1
 Patchnames:
sleposp3-dhcp-12688
SUSE Linux Enterprise Server 11 SP2-LTSS
  • dhcp >= 4.2.4.P2-0.11.15.1
  • dhcp-client >= 4.2.4.P2-0.11.15.1
  • dhcp-relay >= 4.2.4.P2-0.11.15.1
  • dhcp-server >= 4.2.4.P2-0.11.15.1
 Patchnames:
slessp2-dhcp-12637
SUSE Linux Enterprise Server 11 SP3-LTSS
  • dhcp >= 4.2.4.P2-0.27.1
  • dhcp-client >= 4.2.4.P2-0.27.1
  • dhcp-relay >= 4.2.4.P2-0.27.1
  • dhcp-server >= 4.2.4.P2-0.27.1
 Patchnames:
slessp3-dhcp-12688
SUSE Linux Enterprise Server 11 SP4
SUSE Linux Enterprise Server for SAP Applications 11 SP4
  • dhcp >= 4.2.4.P2-0.27.1
  • dhcp-client >= 4.2.4.P2-0.27.1
  • dhcp-devel >= 4.2.4.P2-0.27.1
  • dhcp-relay >= 4.2.4.P2-0.27.1
  • dhcp-server >= 4.2.4.P2-0.27.1
 Patchnames:
sdksp4-dhcp-12688
slessp4-dhcp-12688
SUSE Linux Enterprise Server 12 SP1
SUSE Linux Enterprise Server for SAP Applications 12 SP1
  • dhcp >= 4.3.3-9.1
  • dhcp-client >= 4.3.3-9.1
  • dhcp-devel >= 4.3.3-9.1
  • dhcp-relay >= 4.3.3-9.1
  • dhcp-server >= 4.3.3-9.1
 Patchnames:
SUSE-SLE-SDK-12-SP1-2016-1048
SUSE-SLE-SERVER-12-SP1-2016-1048
SUSE Linux Enterprise Server 12 SP2
  • dhcp >= 4.3.3-9.1
  • dhcp-client >= 4.3.3-9.1
  • dhcp-relay >= 4.3.3-9.1
  • dhcp-server >= 4.3.3-9.1
 Patchnames:
SUSE Linux Enterprise Server 12 SP2 GA dhcp-4.3.3-9.1
SUSE Linux Enterprise Server 12 SP3
  • dhcp >= 4.3.3-9.1
  • dhcp-client >= 4.3.3-9.1
  • dhcp-relay >= 4.3.3-9.1
  • dhcp-server >= 4.3.3-9.1
 Patchnames:
SUSE Linux Enterprise Server 12 SP3 GA dhcp-4.3.3-9.1
SUSE Linux Enterprise Server 12 SP4
  • dhcp >= 4.3.3-10.14.1
  • dhcp-client >= 4.3.3-10.14.1
  • dhcp-relay >= 4.3.3-10.14.1
  • dhcp-server >= 4.3.3-10.14.1
 Patchnames:
SUSE Linux Enterprise Server 12 SP4 GA dhcp-4.3.3-10.14.1
SUSE Linux Enterprise Server 12 SP5
  • dhcp >= 4.3.3-10.16.4
  • dhcp-client >= 4.3.3-10.16.4
  • dhcp-devel >= 4.3.3-9.1
  • dhcp-relay >= 4.3.3-10.16.4
  • dhcp-server >= 4.3.3-10.16.4
 Patchnames:
SUSE Linux Enterprise Server 12 SP5 GA dhcp-4.3.3-10.16.4
SUSE Linux Enterprise Software Development Kit 12 SP5 GA dhcp-4.3.3-10.16.4
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server for SAP Applications 12
  • dhcp >= 4.2.6-14.6.1
  • dhcp-client >= 4.2.6-14.6.1
  • dhcp-devel >= 4.2.6-14.6.1
  • dhcp-relay >= 4.2.6-14.6.1
  • dhcp-server >= 4.2.6-14.6.1
 Patchnames:
SUSE-SLE-SDK-12-2016-1002
SUSE-SLE-SERVER-12-2016-1002
SUSE Linux Enterprise Server for SAP Applications 12 SP5
SUSE Linux Enterprise Software Development Kit 12 SP5
  • dhcp-devel >= 4.3.3-9.1
 Patchnames:
SUSE Linux Enterprise Software Development Kit 12 SP5 GA dhcp-4.3.3-10.16.4
SUSE Linux Enterprise Software Development Kit 12 SP1
  • dhcp-devel >= 4.3.3-9.1
 Patchnames:
SUSE-SLE-SDK-12-SP1-2016-1048
SUSE Linux Enterprise Software Development Kit 12
  • dhcp-devel >= 4.2.6-14.6.1
 Patchnames:
SUSE-SLE-SDK-12-2016-1002
SUSE Manager 2.1
  • dhcp >= 4.2.4.P2-0.27.1
  • dhcp-client >= 4.2.4.P2-0.27.1
  • dhcp-relay >= 4.2.4.P2-0.27.1
  • dhcp-server >= 4.2.4.P2-0.27.1
 Patchnames:
sleman21-dhcp-12688
SUSE Manager Proxy 2.1
  • dhcp >= 4.2.4.P2-0.27.1
  • dhcp-client >= 4.2.4.P2-0.27.1
  • dhcp-relay >= 4.2.4.P2-0.27.1
  • dhcp-server >= 4.2.4.P2-0.27.1
 Patchnames:
slemap21-dhcp-12688
SUSE OpenStack Cloud 5
  • dhcp >= 4.2.4.P2-0.27.1
  • dhcp-client >= 4.2.4.P2-0.27.1
  • dhcp-relay >= 4.2.4.P2-0.27.1
  • dhcp-server >= 4.2.4.P2-0.27.1
 Patchnames:
sleclo50sp3-dhcp-12688

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. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise High Performance Computing 12 SP5 dhcp Released
SUSE Linux Enterprise Server 12 SP5 dhcp Released
SUSE Linux Enterprise Server 12 SP5-LTSS dhcp Affected
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 dhcp Affected
SUSE Linux Enterprise Server for SAP Applications 12 SP5 dhcp Released
Products past their end of life and not receiving proactive updates anymore.
HPE Helion OpenStack 8 dhcp Released
SLES for SAP Applications 11 SP2 dhcp Released
SUSE CaaS Platform 3.0 dhcp Affected
SUSE Enterprise Storage 5 dhcp Released
SUSE Linux Enterprise Desktop 11 SP2 dhcp Released
SUSE Linux Enterprise Desktop 11 SP3 dhcp Released
SUSE Linux Enterprise Desktop 11 SP4 dhcp Released
SUSE Linux Enterprise Desktop 12 dhcp Released
SUSE Linux Enterprise Desktop 12 SP1 dhcp Released
SUSE Linux Enterprise Desktop 12 SP2 dhcp Released
SUSE Linux Enterprise Desktop 12 SP3 dhcp Affected
SUSE Linux Enterprise Desktop 12 SP4 dhcp Affected
SUSE Linux Enterprise Point of Sale 11 SP3 dhcp Released
SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT dhcp Affected
SUSE Linux Enterprise Point of Service 11 SP3 dhcp Unsupported
SUSE Linux Enterprise Point of Service Image Server 12 SP2 dhcp Released
SUSE Linux Enterprise Server 11 SP1-LTSS dhcp Affected
SUSE Linux Enterprise Server 11 SP2 dhcp Released
SUSE Linux Enterprise Server 11 SP2 LTSS dhcp Released
SUSE Linux Enterprise Server 11 SP2-LTSS dhcp Released
SUSE Linux Enterprise Server 11 SP3 dhcp Released
SUSE Linux Enterprise Server 11 SP3 LTSS dhcp Released
SUSE Linux Enterprise Server 11 SP3-LTSS dhcp Released
SUSE Linux Enterprise Server 11 SP4 dhcp Released
SUSE Linux Enterprise Server 11 SP4 LTSS dhcp Affected
SUSE Linux Enterprise Server 11 SP4-LTSS dhcp Released
SUSE Linux Enterprise Server 12 dhcp Released
SUSE Linux Enterprise Server 12 SP1 dhcp Released
SUSE Linux Enterprise Server 12 SP1-LTSS dhcp Affected
SUSE Linux Enterprise Server 12 SP2 dhcp Released
SUSE Linux Enterprise Server 12 SP2-BCL dhcp Released
SUSE Linux Enterprise Server 12 SP2-ESPOS dhcp Released
SUSE Linux Enterprise Server 12 SP2-LTSS dhcp Released
SUSE Linux Enterprise Server 12 SP3 dhcp Affected
SUSE Linux Enterprise Server 12 SP3-BCL dhcp Released
SUSE Linux Enterprise Server 12 SP3-ESPOS dhcp Released
SUSE Linux Enterprise Server 12 SP3-LTSS dhcp Released
SUSE Linux Enterprise Server 12 SP4 dhcp Affected
SUSE Linux Enterprise Server 12 SP4-ESPOS dhcp Released
SUSE Linux Enterprise Server 12 SP4-LTSS dhcp Released
SUSE Linux Enterprise Server 12-LTSS dhcp Released
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 dhcp Affected
SUSE Linux Enterprise Server for SAP Applications 11 SP2 dhcp Released
SUSE Linux Enterprise Server for SAP Applications 11 SP3 dhcp Released
SUSE Linux Enterprise Server for SAP Applications 11 SP4 dhcp Released
SUSE Linux Enterprise Server for SAP Applications 12 dhcp Released
SUSE Linux Enterprise Server for SAP Applications 12 SP1 dhcp Released
SUSE Linux Enterprise Server for SAP Applications 12 SP2 dhcp Released
SUSE Linux Enterprise Server for SAP Applications 12 SP3 dhcp Released
SUSE Linux Enterprise Server for SAP Applications 12 SP4 dhcp Released
SUSE Linux Enterprise Software Development Kit 11 SP2 dhcp Released
SUSE Linux Enterprise Software Development Kit 11 SP3 dhcp Released
SUSE Linux Enterprise Software Development Kit 11 SP4 dhcp Released
SUSE Linux Enterprise Software Development Kit 12 dhcp Released
SUSE Linux Enterprise Software Development Kit 12 SP1 dhcp Released
SUSE Linux Enterprise Software Development Kit 12 SP2 dhcp Released
SUSE Linux Enterprise Software Development Kit 12 SP3 dhcp Affected
SUSE Linux Enterprise Software Development Kit 12 SP4 dhcp Affected
SUSE Linux Enterprise Software Development Kit 12 SP5 dhcp Released
SUSE Manager 2.1 dhcp Released
SUSE Manager Proxy 2.1 dhcp Released
SUSE OpenStack Cloud 5 dhcp Released
SUSE OpenStack Cloud 7 dhcp Released
SUSE OpenStack Cloud 8 dhcp Released
SUSE OpenStack Cloud 9 dhcp Released
SUSE OpenStack Cloud Crowbar 8 dhcp Released
SUSE OpenStack Cloud Crowbar 9 dhcp Released

SUSE Timeline for this CVE

CVE page created: Mon Mar 7 11:32:12 2016
CVE page last modified: Thu Nov 14 17:05:02 2024