SUSE-SU-2026:21204-1: important: Security update for bind

Tue Apr 21 12:32:54 UTC 2026

# Security update for bind

Announcement ID: SUSE-SU-2026:21204-1  
Release Date: 2026-04-16T10:12:49Z  
Rating: important  
References:

  * bsc#1259202
  * bsc#1260567
  * bsc#1260568
  * bsc#1260569
  * bsc#1260805

Cross-References:

  * CVE-2026-1519
  * CVE-2026-3104
  * CVE-2026-3119
  * CVE-2026-3591

CVSS scores:

  * CVE-2026-1519 ( 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-2026-1519 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-1519 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-3104 ( 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-2026-3104 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-3104 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-3119 ( SUSE ):  7.1
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-3119 ( SUSE ):  6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-3119 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-3591 ( SUSE ):  5.3
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-3591 ( SUSE ):  5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
  * CVE-2026-3591 ( NVD ):  5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Affected Products:

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

An update that solves four vulnerabilities and has one fix can now be installed.

## Description:

This update for bind fixes the following issues:

  * Update to release 9.20.21
  * CVE-2026-1519: maliciously crafted DNSSEC-validated zone can lead to denial
    of service (bsc#1260805).
  * CVE-2026-3104: memory leak in code preparing DNSSEC proofs of non-existence
    allows for DoS (bsc#1260567).
  * CVE-2026-3119: authenticated queries containing a TKEY record may cause
    `named` to terminate unexpectedly (bsc#1260568).
  * CVE-2026-3591: stack use-after-return flaw in SIG(0) handling code allows
    for ACL bypass (bsc#1260569).

## 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-16.0-573=1

  * SUSE Linux Enterprise Server for SAP applications 16.0  
    zypper in -t patch SUSE-SLES-16.0-573=1

## Package List:

  * SUSE Linux Enterprise Server 16.0 (aarch64 ppc64le s390x x86_64)
    * bind-modules-ldap-9.20.21-160000.1.1
    * bind-modules-sqlite3-9.20.21-160000.1.1
    * bind-modules-sqlite3-debuginfo-9.20.21-160000.1.1
    * bind-utils-debuginfo-9.20.21-160000.1.1
    * bind-modules-generic-9.20.21-160000.1.1
    * bind-modules-perl-9.20.21-160000.1.1
    * bind-utils-9.20.21-160000.1.1
    * bind-debuginfo-9.20.21-160000.1.1
    * bind-debugsource-9.20.21-160000.1.1
    * bind-modules-perl-debuginfo-9.20.21-160000.1.1
    * bind-modules-generic-debuginfo-9.20.21-160000.1.1
    * bind-modules-ldap-debuginfo-9.20.21-160000.1.1
    * bind-modules-mysql-9.20.21-160000.1.1
    * bind-9.20.21-160000.1.1
    * bind-modules-mysql-debuginfo-9.20.21-160000.1.1
  * SUSE Linux Enterprise Server 16.0 (noarch)
    * bind-doc-9.20.21-160000.1.1
  * SUSE Linux Enterprise Server for SAP applications 16.0 (ppc64le x86_64)
    * bind-modules-ldap-9.20.21-160000.1.1
    * bind-modules-sqlite3-9.20.21-160000.1.1
    * bind-modules-sqlite3-debuginfo-9.20.21-160000.1.1
    * bind-utils-debuginfo-9.20.21-160000.1.1
    * bind-modules-generic-9.20.21-160000.1.1
    * bind-modules-perl-9.20.21-160000.1.1
    * bind-utils-9.20.21-160000.1.1
    * bind-debuginfo-9.20.21-160000.1.1
    * bind-debugsource-9.20.21-160000.1.1
    * bind-modules-perl-debuginfo-9.20.21-160000.1.1
    * bind-modules-generic-debuginfo-9.20.21-160000.1.1
    * bind-modules-ldap-debuginfo-9.20.21-160000.1.1
    * bind-modules-mysql-9.20.21-160000.1.1
    * bind-9.20.21-160000.1.1
    * bind-modules-mysql-debuginfo-9.20.21-160000.1.1
  * SUSE Linux Enterprise Server for SAP applications 16.0 (noarch)
    * bind-doc-9.20.21-160000.1.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-1519.html
  * https://www.suse.com/security/cve/CVE-2026-3104.html
  * https://www.suse.com/security/cve/CVE-2026-3119.html
  * https://www.suse.com/security/cve/CVE-2026-3591.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1259202
  * https://bugzilla.suse.com/show_bug.cgi?id=1260567
  * https://bugzilla.suse.com/show_bug.cgi?id=1260568
  * https://bugzilla.suse.com/show_bug.cgi?id=1260569
  * https://bugzilla.suse.com/show_bug.cgi?id=1260805

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