Upstream information

CVE-2024-1931 at MITRE

Description

NLnet Labs Unbound version 1.18.0 up to and including version 1.19.1 contain a vulnerability that can cause denial of service by a certain code path that can lead to an infinite loop. Unbound 1.18.0 introduced a feature that removes EDE records from responses with size higher than the client's advertised buffer size. Before removing all the EDE records however, it would try to see if trimming the extra text fields on those records would result in an acceptable size while still retaining the EDE codes. Due to an unchecked condition, the code that trims the text of the EDE records could loop indefinitely. This happens when Unbound would reply with attached EDE information on a positive reply and the client's buffer size is smaller than the needed space to include EDE records. The vulnerability can only be triggered when the 'ede: yes' option is used; non default configuration. From version 1.19.2 on, the code is fixed to avoid looping indefinitely.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v3 Scores
  SUSE
Base Score 5.9
Vector CVSS:3.1/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 3.1
SUSE Bugzilla entry: 1221164 [NEW]

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
openSUSE Tumbleweed
  • libunbound8 >= 1.19.2-1.1
  • python3-unbound >= 1.19.2-1.1
  • unbound >= 1.19.2-1.1
  • unbound-anchor >= 1.19.2-1.1
  • unbound-devel >= 1.19.2-1.1
  • unbound-munin >= 1.19.2-1.1
Patchnames:
openSUSE Tumbleweed GA libunbound8-1.19.2-1.1


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Please note that this evaluation state might be work in progress, incomplete or outdated.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 general support and receiving all security fixes.
SUSE Enterprise Storage 7.1 unbound Not affected
SUSE Linux Enterprise Desktop 15 SP5 unbound Not affected
SUSE Linux Enterprise High Performance Computing 15 SP5 unbound Not affected
SUSE Linux Enterprise Micro 5.5 unbound Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP5 unbound Not affected
SUSE Linux Enterprise Module for Package Hub 15 SP5 unbound Not affected
SUSE Linux Enterprise Real Time 15 SP3 unbound Not affected
SUSE Linux Enterprise Server 15 SP5 unbound Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP4 unbound Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP5 unbound Not affected
SUSE Manager Proxy 4.3 unbound Not affected
SUSE Manager Retail Branch Server 4.3 unbound Not affected
SUSE Manager Server 4.3 unbound Not affected
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise Desktop 15 SP4 unbound Not affected
SUSE Linux Enterprise High Performance Computing 15 unbound Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1 unbound Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS unbound Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS unbound Not affected
SUSE Linux Enterprise High Performance Computing 15 SP2 unbound Not affected
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS unbound Not affected
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS unbound Not affected
SUSE Linux Enterprise High Performance Computing 15 SP3 unbound Not affected
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS unbound Not affected
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS unbound Not affected
SUSE Linux Enterprise High Performance Computing 15 SP4 unbound Not affected
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS unbound Not affected
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS unbound Not affected
SUSE Linux Enterprise High Performance Computing 15-ESPOS unbound Not affected
SUSE Linux Enterprise High Performance Computing 15-LTSS unbound Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP2 unbound Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP3 unbound Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP4 unbound Not affected
SUSE Linux Enterprise Server 15 SP2 unbound Not affected
SUSE Linux Enterprise Server 15 SP2-LTSS unbound Not affected
SUSE Linux Enterprise Server 15 SP3 unbound Not affected
SUSE Linux Enterprise Server 15 SP3-LTSS unbound Not affected
SUSE Linux Enterprise Server 15 SP4 unbound Not affected
SUSE Linux Enterprise Server 15 SP4-LTSS unbound Not affected
SUSE Linux Enterprise Server for SAP Applications 15 unbound Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP1 unbound Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP2 unbound Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP3 unbound Not affected
Products past their end of life and not receiving proactive updates anymore.
SUSE CaaS Platform 4.0 unbound Not affected
SUSE Enterprise Storage 6 unbound Not affected
SUSE Enterprise Storage 7 unbound Not affected
SUSE Linux Enterprise Desktop 15 unbound Not affected
SUSE Linux Enterprise Desktop 15 SP1 unbound Not affected
SUSE Linux Enterprise Desktop 15 SP2 unbound Not affected
SUSE Linux Enterprise Desktop 15 SP3 unbound Not affected
SUSE Linux Enterprise Module for Basesystem 15 unbound Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP1 unbound Not affected
SUSE Linux Enterprise Module for Package Hub 15 SP3 unbound Not affected
SUSE Linux Enterprise Module for Package Hub 15 SP4 unbound Not affected
SUSE Linux Enterprise Real Time 15 SP2 unbound Not affected
SUSE Linux Enterprise Real Time 15 SP4 unbound Not affected
SUSE Linux Enterprise Server 15 unbound Not affected
SUSE Linux Enterprise Server 15 SP1 unbound Not affected
SUSE Linux Enterprise Server 15 SP1-BCL unbound Not affected
SUSE Linux Enterprise Server 15 SP1-LTSS unbound Not affected
SUSE Linux Enterprise Server 15 SP2-BCL unbound Not affected
SUSE Linux Enterprise Server 15 SP3-BCL unbound Not affected
SUSE Linux Enterprise Server 15-LTSS unbound Not affected
SUSE Manager Proxy 4.0 unbound Not affected
SUSE Manager Proxy 4.1 unbound Not affected
SUSE Manager Proxy 4.2 unbound Not affected
SUSE Manager Retail Branch Server 4.0 unbound Not affected
SUSE Manager Retail Branch Server 4.1 unbound Not affected
SUSE Manager Retail Branch Server 4.2 unbound Not affected
SUSE Manager Server 4.0 unbound Not affected
SUSE Manager Server 4.1 unbound Not affected
SUSE Manager Server 4.2 unbound Not affected


SUSE Timeline for this CVE

CVE page created: Thu Mar 7 13:00:08 2024
CVE page last modified: Fri Apr 19 19:31:13 2024