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 AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Access Vector Network
Access Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
SUSE Bugzilla entry: 969820 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Desktop 12
  • dhcp >= 4.2.6-14.6.1
  • dhcp-client >= 4.2.6-14.6.1
Patchnames:
SUSE-SLE-DESKTOP-12-2016-1002
SUSE Linux Enterprise Desktop 12 SP1
  • dhcp >= 4.3.3-9.1
  • dhcp-client >= 4.3.3-9.1
Patchnames:
SUSE-SLE-DESKTOP-12-SP1-2016-1048
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
  • 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:
slessp4-dhcp-12688
SUSE Linux Enterprise Server 12
  • dhcp >= 4.2.6-14.6.1
  • dhcp-client >= 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-SERVER-12-2016-1002
SUSE Linux Enterprise Server 12 SP1
  • 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-SLE-SERVER-12-SP1-2016-1048
SUSE Linux Enterprise Server for SAP Applications 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 for SAP Applications 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 for SAP Applications 11 SP4
  • 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:
slessp4-dhcp-12688
SUSE Linux Enterprise Server for SAP Applications 12
  • dhcp >= 4.2.6-14.6.1
  • dhcp-client >= 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-SERVER-12-2016-1002
SUSE Linux Enterprise Server for SAP Applications 12 SP1
  • 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-SLE-SERVER-12-SP1-2016-1048
SUSE Linux Enterprise Software Development Kit 11 SP4
  • dhcp >= 4.2.4.P2-0.27.1
  • dhcp-devel >= 4.2.4.P2-0.27.1
Patchnames:
sdksp4-dhcp-12688
SUSE Linux Enterprise Software Development Kit 12
  • dhcp >= 4.2.6-14.6.1
  • dhcp-devel >= 4.2.6-14.6.1
Patchnames:
SUSE-SLE-SDK-12-2016-1002
SUSE Linux Enterprise Software Development Kit 12 SP1
  • dhcp >= 4.3.3-9.1
  • dhcp-devel >= 4.3.3-9.1
Patchnames:
SUSE-SLE-SDK-12-SP1-2016-1048
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
openSUSE Leap 42.1
  • dhcp >= 4.3.3-7.1
  • dhcp-client >= 4.3.3-7.1
  • dhcp-client-debuginfo >= 4.3.3-7.1
  • dhcp-debuginfo >= 4.3.3-7.1
  • dhcp-debugsource >= 4.3.3-7.1
  • dhcp-devel >= 4.3.3-7.1
  • dhcp-doc >= 4.3.3-7.1
  • dhcp-relay >= 4.3.3-7.1
  • dhcp-relay-debuginfo >= 4.3.3-7.1
  • dhcp-server >= 4.3.3-7.1
  • dhcp-server-debuginfo >= 4.3.3-7.1
Patchnames:
openSUSE-2016-887


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
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 GA dhcp Released
SUSE Linux Enterprise Desktop 12 SP1 dhcp Released
SUSE Linux Enterprise Desktop 12 SP2 dhcp Released
SUSE Linux Enterprise SDK 11 SP2 dhcp Released
SUSE Linux Enterprise SDK 11 SP3 dhcp Released
SUSE Linux Enterprise SDK 11 SP4 dhcp Released
SUSE Linux Enterprise SDK 12 GA dhcp Released
SUSE Linux Enterprise SDK 12 SP1 dhcp Released
SUSE Linux Enterprise SDK 12 SP2 dhcp Released
SUSE Linux Enterprise Server 11 SP2 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 SP4 dhcp Released
SUSE Linux Enterprise Server 12 GA dhcp Released
SUSE Linux Enterprise Server 12 GA LTSS dhcp Released
SUSE Linux Enterprise Server 12 SP1 dhcp Released
SUSE Linux Enterprise Server 12 SP2 dhcp Released
SUSE Linux Enterprise Server for SAP Applications 11 SP2 dhcp Released
SUSE Linux Enterprise Server for VMWare 11 SP2 dhcp Released
SUSE Linux Enterprise Server for VMWare 11 SP3 dhcp Released