SUSE-SU-2026:20135-1: important: Security update for bind

[SLE-UPDATES]

# Security update for bind

Announcement ID: SUSE-SU-2026:20135-1  
Release Date: 2026-01-22T16:45:35Z  
Rating: important  
References:

  * bsc#1256997

  
Cross-References:

  * CVE-2025-13878

  
CVSS scores:

  * CVE-2025-13878 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2025-13878 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-13878 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

  
Affected Products:

  * SUSE Linux Enterprise Server 16.0
  * SUSE Linux Enterprise Server for SAP Applications 16.0

  
  
An update that solves one vulnerability can now be installed.

## Description:

This update for bind fixes the following issues:

Upgrade to release 9.20.18:

  * CVE-2025-13878: Fixed incorrect length checks for BRID and HHIT records
    (bsc#1256997)

Feature Changes: * Add more information to the rndc recursing output about
fetches. * Reduce the number of outgoing queries. * Provide more information
when memory allocation fails.

Bug Fixes: * Make DNSSEC key rollovers more robust. * Fix a catalog zone issue,
where member zones could fail to load. * Allow glue in delegations with
QTYPE=ANY. * Fix slow speed when signing a large delegation zone with NSEC3 opt-
out. * Reconfiguring an NSEC3 opt-out zone to NSEC caused the zone to be
invalid. * Fix a possible catalog zone issue during reconfiguration. * Fix the
charts in the statistics channel. * Adding NSEC3 opt-out records could leave
invalid records in chain. * Fix spurious timeouts while resolving names. * Fix
bug where zone switches from NSEC3 to NSEC after retransfer. * AMTRELAY type 0
presentation format handling was wrong. * Fix parsing bug in remote-servers with
key or TLS. * Fix DoT reconfigure/reload bug in the resolver. * Skip unsupported
algorithms when looking for a signing key. * Fix dnssec-keygen key collision
checking for KEY RRtype keys. * dnssec-verify now uses exit code 1 when failing
due to illegal options. * Prevent assertion failures of dig when a server is
specified before the -b option. * Skip buffer allocations if not logging.

## 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 Server 16.0  
    zypper in -t patch SUSE-SLES-16.0-180=1

  * SUSE Linux Enterprise Server for SAP Applications 16.0  
    zypper in -t patch SUSE-SLES-16.0-180=1

## Package List:

  * SUSE Linux Enterprise Server 16.0 (aarch64 ppc64le s390x x86_64)
    * bind-modules-ldap-debuginfo-9.20.18-160000.1.1
    * bind-9.20.18-160000.1.1
    * bind-debugsource-9.20.18-160000.1.1
    * bind-modules-generic-debuginfo-9.20.18-160000.1.1
    * bind-modules-mysql-9.20.18-160000.1.1
    * bind-modules-sqlite3-debuginfo-9.20.18-160000.1.1
    * bind-modules-sqlite3-9.20.18-160000.1.1
    * bind-modules-perl-debuginfo-9.20.18-160000.1.1
    * bind-modules-ldap-9.20.18-160000.1.1
    * bind-debuginfo-9.20.18-160000.1.1
    * bind-utils-debuginfo-9.20.18-160000.1.1
    * bind-modules-mysql-debuginfo-9.20.18-160000.1.1
    * bind-utils-9.20.18-160000.1.1
    * bind-modules-perl-9.20.18-160000.1.1
    * bind-modules-generic-9.20.18-160000.1.1
  * SUSE Linux Enterprise Server 16.0 (noarch)
    * bind-doc-9.20.18-160000.1.1
  * SUSE Linux Enterprise Server for SAP Applications 16.0 (ppc64le x86_64)
    * bind-modules-ldap-debuginfo-9.20.18-160000.1.1
    * bind-9.20.18-160000.1.1
    * bind-debugsource-9.20.18-160000.1.1
    * bind-modules-generic-debuginfo-9.20.18-160000.1.1
    * bind-modules-mysql-9.20.18-160000.1.1
    * bind-modules-sqlite3-debuginfo-9.20.18-160000.1.1
    * bind-modules-sqlite3-9.20.18-160000.1.1
    * bind-modules-perl-debuginfo-9.20.18-160000.1.1
    * bind-modules-ldap-9.20.18-160000.1.1
    * bind-debuginfo-9.20.18-160000.1.1
    * bind-utils-debuginfo-9.20.18-160000.1.1
    * bind-modules-mysql-debuginfo-9.20.18-160000.1.1
    * bind-utils-9.20.18-160000.1.1
    * bind-modules-perl-9.20.18-160000.1.1
    * bind-modules-generic-9.20.18-160000.1.1
  * SUSE Linux Enterprise Server for SAP Applications 16.0 (noarch)
    * bind-doc-9.20.18-160000.1.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-13878.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1256997

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