# Security update for unbound

Announcement ID: SUSE-SU-2024:1991-1  
Rating: important  
References:

  * bsc#1202031
  * bsc#1202033
  * bsc#1203643
  * bsc#1219823
  * bsc#1219826
  * jsc#PED-8333

  
Cross-References:

  * CVE-2022-30698
  * CVE-2022-30699
  * CVE-2022-3204
  * CVE-2023-50387
  * CVE-2023-50868

  
CVSS scores:

  * CVE-2022-30698 ( SUSE ):  5.6 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
  * CVE-2022-30698 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
  * CVE-2022-30699 ( SUSE ):  5.6 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
  * CVE-2022-30699 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
  * CVE-2022-3204 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2022-3204 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2023-50387 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2023-50387 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2023-50868 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

  
Affected Products:

  * Basesystem Module 15-SP5
  * openSUSE Leap 15.5
  * SUSE Enterprise Storage 7.1
  * SUSE Linux Enterprise Desktop 15 SP4 LTSS 15-SP4
  * SUSE Linux Enterprise Desktop 15 SP5
  * SUSE Linux Enterprise High Performance Computing 15 SP2
  * SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS 15-SP2
  * SUSE Linux Enterprise High Performance Computing 15 SP3
  * SUSE Linux Enterprise High Performance Computing 15 SP4
  * SUSE Linux Enterprise High Performance Computing 15 SP5
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP3
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4
  * SUSE Linux Enterprise Micro 5.5
  * SUSE Linux Enterprise Real Time 15 SP5
  * SUSE Linux Enterprise Server 15 SP2
  * SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2
  * SUSE Linux Enterprise Server 15 SP3
  * SUSE Linux Enterprise Server 15 SP3 LTSS 15-SP3
  * SUSE Linux Enterprise Server 15 SP4
  * SUSE Linux Enterprise Server 15 SP4 LTSS 15-SP4
  * SUSE Linux Enterprise Server 15 SP5
  * SUSE Linux Enterprise Server for SAP Applications 15 SP2
  * SUSE Linux Enterprise Server for SAP Applications 15 SP3
  * SUSE Linux Enterprise Server for SAP Applications 15 SP4
  * SUSE Linux Enterprise Server for SAP Applications 15 SP5
  * SUSE Manager Proxy 4.3
  * SUSE Manager Retail Branch Server 4.3
  * SUSE Manager Server 4.3
  * SUSE Package Hub 15 15-SP5

  
  
An update that solves five vulnerabilities and contains one feature can now be
installed.

## Description:

This update for unbound fixes the following issues:

unbound was updated to 1.20.0:

  * A lot of bugfixes and added features. For a complete list take a look at the
    changelog located at: /usr/share/doc/packages/unbound/Changelog or
    https://www.nlnetlabs.nl/projects/unbound/download/

Some Noteworthy Changes:

  * Removed DLV. The DLV has been decommisioned since unbound 1.5.4 and has been
    advised to stop using it since. The use of dlv options displays a warning.
  * Remove EDNS lame procedure, do not re-query without EDNS after timeout.
  * Add DNS over HTTPS
  * libunbound has been upgraded to major version 8

Security Fixes: * CVE-2023-50387: DNSSEC verification complexity can be
exploited to exhaust CPU resources and stall DNS resolvers. [bsc#1219823] *
CVE-2023-50868: NSEC3 closest encloser proof can exhaust CPU. [bsc#1219826] *
CVE-2022-30698: Novel "ghost domain names" attack by introducing subdomain
delegations. [bsc#1202033] * CVE-2022-30699: Novel "ghost domain names" attack
by updating almost expired delegation information. [bsc#1202031] *
CVE-2022-3204: NRDelegation attack leads to uncontrolled resource consumption
(Non-Responsive Delegation Attack). [bsc#1203643]

Packaging Changes:

  * Use prefixes instead of sudo in unbound.service
  * Remove no longer necessary BuildRequires: libfstrm-devel and libprotobuf-c-
    devel

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP3  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP3-LTSS-2024-1991=1

  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2024-1991=1

  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2024-1991=1

  * SUSE Linux Enterprise Desktop 15 SP4 LTSS 15-SP4  
    zypper in -t patch SUSE-SLE-Product-SLED-15-SP4-LTSS-2024-1991=1

  * SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP2-LTSS-2024-1991=1

  * SUSE Linux Enterprise Server 15 SP3 LTSS 15-SP3  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP3-LTSS-2024-1991=1

  * SUSE Linux Enterprise Server 15 SP4 LTSS 15-SP4  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2024-1991=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP2  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP2-2024-1991=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP3  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP3-2024-1991=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP4  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2024-1991=1

  * SUSE Manager Proxy 4.3  
    zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Proxy-4.3-2024-1991=1

  * SUSE Manager Retail Branch Server 4.3  
    zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Retail-Branch-
Server-4.3-2024-1991=1

  * SUSE Manager Server 4.3  
    zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Server-4.3-2024-1991=1

  * SUSE Enterprise Storage 7.1  
    zypper in -t patch SUSE-Storage-7.1-2024-1991=1

  * openSUSE Leap 15.5  
    zypper in -t patch openSUSE-SLE-15.5-2024-1991=1

  * SUSE Linux Enterprise Micro 5.5  
    zypper in -t patch SUSE-SLE-Micro-5.5-2024-1991=1

  * Basesystem Module 15-SP5  
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP5-2024-1991=1

  * SUSE Package Hub 15 15-SP5  
    zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP5-2024-1991=1

  * SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS 15-SP2  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP2-LTSS-2024-1991=1

## Package List:

  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP3 (aarch64
    x86_64)
    * libunbound8-1.20.0-150100.10.13.1
    * unbound-devel-1.20.0-150100.10.13.1
    * unbound-debugsource-1.20.0-150100.10.13.1
    * unbound-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-1.20.0-150100.10.13.1
    * libunbound8-debuginfo-1.20.0-150100.10.13.1
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64
    x86_64)
    * libunbound8-1.20.0-150100.10.13.1
    * unbound-devel-1.20.0-150100.10.13.1
    * unbound-debugsource-1.20.0-150100.10.13.1
    * unbound-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-1.20.0-150100.10.13.1
    * libunbound8-debuginfo-1.20.0-150100.10.13.1
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64
    x86_64)
    * libunbound8-1.20.0-150100.10.13.1
    * unbound-devel-1.20.0-150100.10.13.1
    * unbound-debugsource-1.20.0-150100.10.13.1
    * unbound-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-1.20.0-150100.10.13.1
    * libunbound8-debuginfo-1.20.0-150100.10.13.1
  * SUSE Linux Enterprise Desktop 15 SP4 LTSS 15-SP4 (x86_64)
    * libunbound8-1.20.0-150100.10.13.1
    * unbound-devel-1.20.0-150100.10.13.1
    * unbound-debugsource-1.20.0-150100.10.13.1
    * unbound-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-1.20.0-150100.10.13.1
    * libunbound8-debuginfo-1.20.0-150100.10.13.1
  * SUSE Linux Enterprise Server 15 SP2 LTSS 15-SP2 (aarch64 ppc64le s390x
    x86_64)
    * libunbound8-1.20.0-150100.10.13.1
    * unbound-devel-1.20.0-150100.10.13.1
    * unbound-debugsource-1.20.0-150100.10.13.1
    * unbound-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-1.20.0-150100.10.13.1
    * libunbound8-debuginfo-1.20.0-150100.10.13.1
  * SUSE Linux Enterprise Server 15 SP3 LTSS 15-SP3 (aarch64 ppc64le s390x
    x86_64)
    * libunbound8-1.20.0-150100.10.13.1
    * unbound-devel-1.20.0-150100.10.13.1
    * unbound-debugsource-1.20.0-150100.10.13.1
    * unbound-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-1.20.0-150100.10.13.1
    * libunbound8-debuginfo-1.20.0-150100.10.13.1
  * SUSE Linux Enterprise Server 15 SP4 LTSS 15-SP4 (aarch64 ppc64le s390x
    x86_64)
    * libunbound8-1.20.0-150100.10.13.1
    * unbound-devel-1.20.0-150100.10.13.1
    * unbound-debugsource-1.20.0-150100.10.13.1
    * unbound-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-1.20.0-150100.10.13.1
    * libunbound8-debuginfo-1.20.0-150100.10.13.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP2 (ppc64le x86_64)
    * libunbound8-1.20.0-150100.10.13.1
    * unbound-devel-1.20.0-150100.10.13.1
    * unbound-debugsource-1.20.0-150100.10.13.1
    * unbound-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-1.20.0-150100.10.13.1
    * libunbound8-debuginfo-1.20.0-150100.10.13.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP3 (ppc64le x86_64)
    * libunbound8-1.20.0-150100.10.13.1
    * unbound-devel-1.20.0-150100.10.13.1
    * unbound-debugsource-1.20.0-150100.10.13.1
    * unbound-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-1.20.0-150100.10.13.1
    * libunbound8-debuginfo-1.20.0-150100.10.13.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP4 (ppc64le x86_64)
    * libunbound8-1.20.0-150100.10.13.1
    * unbound-devel-1.20.0-150100.10.13.1
    * unbound-debugsource-1.20.0-150100.10.13.1
    * unbound-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-1.20.0-150100.10.13.1
    * libunbound8-debuginfo-1.20.0-150100.10.13.1
  * SUSE Manager Proxy 4.3 (x86_64)
    * libunbound8-1.20.0-150100.10.13.1
    * unbound-devel-1.20.0-150100.10.13.1
    * unbound-debugsource-1.20.0-150100.10.13.1
    * unbound-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-1.20.0-150100.10.13.1
    * libunbound8-debuginfo-1.20.0-150100.10.13.1
  * SUSE Manager Retail Branch Server 4.3 (x86_64)
    * libunbound8-1.20.0-150100.10.13.1
    * unbound-devel-1.20.0-150100.10.13.1
    * unbound-debugsource-1.20.0-150100.10.13.1
    * unbound-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-1.20.0-150100.10.13.1
    * libunbound8-debuginfo-1.20.0-150100.10.13.1
  * SUSE Manager Server 4.3 (ppc64le s390x x86_64)
    * libunbound8-1.20.0-150100.10.13.1
    * unbound-devel-1.20.0-150100.10.13.1
    * unbound-debugsource-1.20.0-150100.10.13.1
    * unbound-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-1.20.0-150100.10.13.1
    * libunbound8-debuginfo-1.20.0-150100.10.13.1
  * SUSE Enterprise Storage 7.1 (aarch64 x86_64)
    * libunbound8-1.20.0-150100.10.13.1
    * unbound-devel-1.20.0-150100.10.13.1
    * unbound-debugsource-1.20.0-150100.10.13.1
    * unbound-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-1.20.0-150100.10.13.1
    * libunbound8-debuginfo-1.20.0-150100.10.13.1
  * openSUSE Leap 15.5 (aarch64 ppc64le s390x x86_64)
    * unbound-python-debuginfo-1.20.0-150100.10.13.1
    * unbound-1.20.0-150100.10.13.1
    * unbound-python-1.20.0-150100.10.13.1
    * libunbound8-1.20.0-150100.10.13.1
    * unbound-devel-1.20.0-150100.10.13.1
    * unbound-debugsource-1.20.0-150100.10.13.1
    * unbound-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-1.20.0-150100.10.13.1
    * libunbound8-debuginfo-1.20.0-150100.10.13.1
  * openSUSE Leap 15.5 (noarch)
    * unbound-munin-1.20.0-150100.10.13.1
  * SUSE Linux Enterprise Micro 5.5 (aarch64 s390x x86_64)
    * libunbound8-1.20.0-150100.10.13.1
    * unbound-debugsource-1.20.0-150100.10.13.1
    * unbound-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-1.20.0-150100.10.13.1
    * libunbound8-debuginfo-1.20.0-150100.10.13.1
  * Basesystem Module 15-SP5 (aarch64 ppc64le s390x x86_64)
    * libunbound8-1.20.0-150100.10.13.1
    * unbound-devel-1.20.0-150100.10.13.1
    * unbound-debugsource-1.20.0-150100.10.13.1
    * unbound-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-1.20.0-150100.10.13.1
    * libunbound8-debuginfo-1.20.0-150100.10.13.1
  * SUSE Package Hub 15 15-SP5 (aarch64 ppc64le s390x x86_64)
    * unbound-python-debuginfo-1.20.0-150100.10.13.1
    * unbound-1.20.0-150100.10.13.1
    * unbound-python-1.20.0-150100.10.13.1
    * unbound-debugsource-1.20.0-150100.10.13.1
    * unbound-debuginfo-1.20.0-150100.10.13.1
  * SUSE Linux Enterprise High Performance Computing 15 SP2 LTSS 15-SP2 (aarch64
    x86_64)
    * libunbound8-1.20.0-150100.10.13.1
    * unbound-devel-1.20.0-150100.10.13.1
    * unbound-debugsource-1.20.0-150100.10.13.1
    * unbound-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-debuginfo-1.20.0-150100.10.13.1
    * unbound-anchor-1.20.0-150100.10.13.1
    * libunbound8-debuginfo-1.20.0-150100.10.13.1

## References:

  * https://www.suse.com/security/cve/CVE-2022-30698.html
  * https://www.suse.com/security/cve/CVE-2022-30699.html
  * https://www.suse.com/security/cve/CVE-2022-3204.html
  * https://www.suse.com/security/cve/CVE-2023-50387.html
  * https://www.suse.com/security/cve/CVE-2023-50868.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1202031
  * https://bugzilla.suse.com/show_bug.cgi?id=1202033
  * https://bugzilla.suse.com/show_bug.cgi?id=1203643
  * https://bugzilla.suse.com/show_bug.cgi?id=1219823
  * https://bugzilla.suse.com/show_bug.cgi?id=1219826
  * https://jira.suse.com/browse/PED-8333