Upstream information

CVE-2018-5732 at MITRE

Description

Failure to properly bounds-check a buffer used for processing DHCP options allows a malicious server (or an entity masquerading as a server) to cause a buffer overflow (and resulting crash) in dhclient by sending a response containing a specially constructed options section. Affects ISC DHCP versions 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 important 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 7.5
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Access Vector Network Network
Access Complexity Low Low
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact None None
Integrity Impact None None
Availability Impact High High
CVSSv3 Version 3.1 3
SUSE Bugzilla entries: 1083302 [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
SUSE Linux Enterprise High Performance Computing 12 SP5
SUSE Linux Enterprise Server 12 SP5
  • dhcp >= 4.3.3-10.16.4
  • dhcp-client >= 4.3.3-10.16.4
  • dhcp-relay >= 4.3.3-10.16.4
  • dhcp-server >= 4.3.3-10.16.4
SUSE Linux Enterprise Module for Basesystem 15
SUSE Linux Enterprise Module for Basesystem 15 SP1
  • dhcp >= 4.3.5-4.15
  • dhcp-client >= 4.3.5-4.15
  • dhcp-devel >= 4.3.5-4.15
SUSE Linux Enterprise Module for Server Applications 15
SUSE Linux Enterprise Module for Server Applications 15 SP1
  • dhcp-relay >= 4.3.5-4.15
  • dhcp-server >= 4.3.5-4.15
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
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 11 SP4
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 12 SP2
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 12 SP3
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 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
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 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
SUSE Linux Enterprise Software Development Kit 12 SP5
  • dhcp-devel >= 4.3.3-10.16.4
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 Server 11 SP1 dhcp Not affected
SUSE Linux Enterprise Server 11 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
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 SP3 dhcp Released