# Security update for bind

Announcement ID: SUSE-SU-2024:0574-1  
Rating: important  
References:

  * bsc#1219823
  * bsc#1219826
  * bsc#1219851
  * bsc#1219852
  * bsc#1219853
  * bsc#1219854

  
Cross-References:

  * CVE-2023-4408
  * CVE-2023-50387
  * CVE-2023-50868
  * CVE-2023-5517
  * CVE-2023-5679
  * CVE-2023-6516

  
CVSS scores:

  * CVE-2023-4408 ( 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 ( 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
  * CVE-2023-5517 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2023-5679 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2023-6516 ( 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
  * Server Applications Module 15-SP5
  * SUSE Linux Enterprise Desktop 15 SP5
  * SUSE Linux Enterprise High Performance Computing 15 SP5
  * SUSE Linux Enterprise Real Time 15 SP5
  * SUSE Linux Enterprise Server 15 SP5
  * SUSE Linux Enterprise Server for SAP Applications 15 SP5

  
  
An update that solves six vulnerabilities can now be installed.

## Description:

This update for bind fixes the following issues:

Update to release 9.16.48:

  * CVE-2023-50387: Fixed a denial-of-service caused by DNS messages containing
    a lot of DNSSEC signatures (bsc#1219823).
  * CVE-2023-50868: Fixed a denial-of-service caused by NSEC3 closest encloser
    proof (bsc#1219826).
  * CVE-2023-4408: Fixed a denial-of-service caused by DNS messages with many
    different names (bsc#1219851).
  * CVE-2023-5517: Fixed a possible crash when nxdomain-redirect was enabled
    (bsc#1219852).
  * CVE-2023-5679: Fixed a possible crash when bad interaction between DNS64 and
    serve-stale, when both of these features are enabled (bsc#1219853).
  * CVE-2023-6516: Fixed excessive memory consumption when continuously trigger
    the cache database maintenance (bsc#1219854).

## 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:

  * openSUSE Leap 15.5  
    zypper in -t patch SUSE-2024-574=1 openSUSE-SLE-15.5-2024-574=1

  * Basesystem Module 15-SP5  
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP5-2024-574=1

  * Server Applications Module 15-SP5  
    zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP5-2024-574=1

## Package List:

  * openSUSE Leap 15.5 (aarch64 ppc64le s390x x86_64 i586)
    * bind-9.16.48-150500.8.16.1
    * bind-debugsource-9.16.48-150500.8.16.1
    * bind-utils-9.16.48-150500.8.16.1
    * bind-debuginfo-9.16.48-150500.8.16.1
    * bind-utils-debuginfo-9.16.48-150500.8.16.1
  * openSUSE Leap 15.5 (noarch)
    * python3-bind-9.16.48-150500.8.16.1
    * bind-doc-9.16.48-150500.8.16.1
  * Basesystem Module 15-SP5 (aarch64 ppc64le s390x x86_64)
    * bind-debugsource-9.16.48-150500.8.16.1
    * bind-utils-9.16.48-150500.8.16.1
    * bind-debuginfo-9.16.48-150500.8.16.1
    * bind-utils-debuginfo-9.16.48-150500.8.16.1
  * Basesystem Module 15-SP5 (noarch)
    * python3-bind-9.16.48-150500.8.16.1
  * Server Applications Module 15-SP5 (aarch64 ppc64le s390x x86_64)
    * bind-9.16.48-150500.8.16.1
    * bind-debugsource-9.16.48-150500.8.16.1
    * bind-debuginfo-9.16.48-150500.8.16.1
  * Server Applications Module 15-SP5 (noarch)
    * bind-doc-9.16.48-150500.8.16.1

## References:

  * https://www.suse.com/security/cve/CVE-2023-4408.html
  * https://www.suse.com/security/cve/CVE-2023-50387.html
  * https://www.suse.com/security/cve/CVE-2023-50868.html
  * https://www.suse.com/security/cve/CVE-2023-5517.html
  * https://www.suse.com/security/cve/CVE-2023-5679.html
  * https://www.suse.com/security/cve/CVE-2023-6516.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1219823
  * https://bugzilla.suse.com/show_bug.cgi?id=1219826
  * https://bugzilla.suse.com/show_bug.cgi?id=1219851
  * https://bugzilla.suse.com/show_bug.cgi?id=1219852
  * https://bugzilla.suse.com/show_bug.cgi?id=1219853
  * https://bugzilla.suse.com/show_bug.cgi?id=1219854