Upstream information

CVE-2018-5733 at MITRE

Description

A malicious client which is allowed to send very large amounts of traffic (billions of packets) to a DHCP server can eventually overflow a 32-bit reference counter, potentially causing dhcpd to crash. Affects ISC DHCP 4.1.0 -> 4.1-ESV-R15, 4.2.0 -> 4.2.8, 4.3.0 -> 4.3.6, 4.4.0.

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 SUSE
Base Score 7.5 5.9
Vector AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Access Vector Network Network
Access Complexity Low High
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact None None
Integrity Impact None None
Availability Impact High High
SUSE Bugzilla entries: 1083303 [RESOLVED / FIXED], 1085417 [RESOLVED / INVALID]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Desktop 12 SP2
  • dhcp >= 4.3.3-10.14.1
  • dhcp-client >= 4.3.3-10.14.1
Patchnames:
SUSE-SLE-DESKTOP-12-SP2-2018-542
SUSE Linux Enterprise Desktop 12 SP3
  • dhcp >= 4.3.3-10.14.1
  • dhcp-client >= 4.3.3-10.14.1
Patchnames:
SUSE-SLE-DESKTOP-12-SP3-2018-542
SUSE Linux Enterprise Desktop 12 SP4
  • dhcp >= 4.3.3-10.14.1
  • dhcp-client >= 4.3.3-10.14.1
Patchnames:
SUSE Linux Enterprise Desktop 12 SP4 GA dhcp
SUSE Linux Enterprise Module for Basesystem 15
  • dhcp >= 4.3.5-4.15
  • dhcp-client >= 4.3.5-4.15
  • dhcp-devel >= 4.3.5-4.15
Patchnames:
SUSE Linux Enterprise Module for Basesystem 15 GA dhcp
SUSE Linux Enterprise Module for Server Applications 15
  • dhcp-relay >= 4.3.5-4.15
  • dhcp-server >= 4.3.5-4.15
Patchnames:
SUSE Linux Enterprise Module for Server Applications 15 GA dhcp-relay
SUSE Linux Enterprise Point of Sale 11 SP3
  • dhcp >= 4.2.4.P2-0.28.8.1
  • dhcp-client >= 4.2.4.P2-0.28.8.1
  • dhcp-relay >= 4.2.4.P2-0.28.8.1
  • dhcp-server >= 4.2.4.P2-0.28.8.1
Patchnames:
sleposp3-dhcp-13533
SUSE Linux Enterprise Server 11 SP3-LTSS
  • dhcp >= 4.2.4.P2-0.28.8.1
  • dhcp-client >= 4.2.4.P2-0.28.8.1
  • dhcp-relay >= 4.2.4.P2-0.28.8.1
  • dhcp-server >= 4.2.4.P2-0.28.8.1
Patchnames:
slessp3-dhcp-13533
SUSE Linux Enterprise Server 11 SP4
  • dhcp >= 4.2.4.P2-0.28.8.1
  • dhcp-client >= 4.2.4.P2-0.28.8.1
  • dhcp-relay >= 4.2.4.P2-0.28.8.1
  • dhcp-server >= 4.2.4.P2-0.28.8.1
Patchnames:
slessp4-dhcp-13533
SUSE Linux Enterprise Server 12 SP2
  • 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-SLE-SERVER-12-SP2-2018-542
SUSE Linux Enterprise Server 12 SP3
  • 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-SLE-SERVER-12-SP3-2018-542
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
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2
  • 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-SLE-RPI-12-SP2-2018-542
SUSE Linux Enterprise Server for SAP Applications 11 SP3-LTSS
  • dhcp >= 4.2.4.P2-0.28.8.1
  • dhcp-client >= 4.2.4.P2-0.28.8.1
  • dhcp-relay >= 4.2.4.P2-0.28.8.1
  • dhcp-server >= 4.2.4.P2-0.28.8.1
Patchnames:
slessp3-dhcp-13533
SUSE Linux Enterprise Server for SAP Applications 11 SP4
  • dhcp >= 4.2.4.P2-0.28.8.1
  • dhcp-client >= 4.2.4.P2-0.28.8.1
  • dhcp-relay >= 4.2.4.P2-0.28.8.1
  • dhcp-server >= 4.2.4.P2-0.28.8.1
Patchnames:
slessp4-dhcp-13533
SUSE Linux Enterprise Server for SAP Applications 12 SP2
  • 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-SLE-SERVER-12-SP2-2018-542
SUSE Linux Enterprise Server for SAP Applications 12 SP3
  • 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-SLE-SERVER-12-SP3-2018-542
SUSE Linux Enterprise Software Development Kit 11 SP4
  • dhcp >= 4.2.4.P2-0.28.8.1
  • dhcp-devel >= 4.2.4.P2-0.28.8.1
Patchnames:
sdksp4-dhcp-13533
SUSE Linux Enterprise Software Development Kit 12 SP2
  • dhcp >= 4.3.3-10.14.1
  • dhcp-devel >= 4.3.3-10.14.1
Patchnames:
SUSE-SLE-SDK-12-SP2-2018-542
SUSE Linux Enterprise Software Development Kit 12 SP3
  • dhcp >= 4.3.3-10.14.1
  • dhcp-devel >= 4.3.3-10.14.1
Patchnames:
SUSE-SLE-SDK-12-SP3-2018-542
SUSE Linux Enterprise Software Development Kit 12 SP4
  • dhcp-devel >= 4.3.3-10.14.1
Patchnames:
SUSE Linux Enterprise Software Development Kit 12 SP4 GA dhcp-devel
openSUSE Leap 15.0
  • dhcp >= 4.3.5-lp150.4.1
  • dhcp-client >= 4.3.5-lp150.4.1
Patchnames:
openSUSE Leap 15.0 GA dhcp
openSUSE Leap 42.3
  • dhcp >= 4.3.3-11.6.1
  • dhcp-client >= 4.3.3-11.6.1
  • dhcp-client-debuginfo >= 4.3.3-11.6.1
  • dhcp-debuginfo >= 4.3.3-11.6.1
  • dhcp-debugsource >= 4.3.3-11.6.1
  • dhcp-devel >= 4.3.3-11.6.1
  • dhcp-doc >= 4.3.3-11.6.1
  • dhcp-relay >= 4.3.3-11.6.1
  • dhcp-relay-debuginfo >= 4.3.3-11.6.1
  • dhcp-server >= 4.3.3-11.6.1
  • dhcp-server-debuginfo >= 4.3.3-11.6.1
Patchnames:
openSUSE-2018-315


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 12 SP2 dhcp Released
SUSE Linux Enterprise Desktop 12 SP3 dhcp Released
SUSE Linux Enterprise SDK 11 SP4 dhcp Released
SUSE Linux Enterprise SDK 12 SP2 dhcp Released
SUSE Linux Enterprise SDK 12 SP3 dhcp Released
SUSE Linux Enterprise Server 11 SP3 LTSS dhcp Affected
SUSE Linux Enterprise Server 11 SP4 dhcp Released
SUSE Linux Enterprise Server 12 SP1 LTSS dhcp Affected
SUSE Linux Enterprise Server 12 SP2 dhcp Released
SUSE Linux Enterprise Server 12 SP3 dhcp Released