SUSE-SU-2025:3903-1: important: Security update for bind

[SLE-SECURITY-UPDATES]

# Security update for bind

Announcement ID: SUSE-SU-2025:3903-1  
Release Date: 2025-10-31T17:08:28Z  
Rating: important  
References:

  * bsc#1252378
  * bsc#1252379
  * bsc#1252380

  
Cross-References:

  * CVE-2025-40778
  * CVE-2025-40780
  * CVE-2025-8677

  
CVSS scores:

  * CVE-2025-40778 ( SUSE ):  9.2
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N
  * CVE-2025-40778 ( SUSE ):  8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
  * CVE-2025-40778 ( NVD ):  8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
  * CVE-2025-40780 ( SUSE ):  9.2
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N
  * CVE-2025-40780 ( SUSE ):  8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
  * CVE-2025-40780 ( NVD ):  8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
  * CVE-2025-8677 ( 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-2025-8677 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-8677 ( NVD ):  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-SP7
  * Server Applications Module 15-SP7
  * SUSE Linux Enterprise Desktop 15 SP7
  * SUSE Linux Enterprise Real Time 15 SP7
  * SUSE Linux Enterprise Server 15 SP7
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7

  
  
An update that solves three vulnerabilities can now be installed.

## Description:

This update for bind fixes the following issues:

Upgrade to release 9.20.15:

  * CVE-2025-8677: DNSSEC validation fails if matching but invalid DNSKEY is
    found (bsc#1252378).
  * CVE-2025-40778: Address various spoofing attacks (bsc#1252379).
  * CVE-2025-40780: Cache-poisoning due to weak pseudo-random number generator
    (bsc#1252380).

## 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:

  * Server Applications Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP7-2025-3903=1

  * Basesystem Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2025-3903=1

## Package List:

  * Server Applications Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * bind-debugsource-9.20.15-150700.3.12.1
    * bind-9.20.15-150700.3.12.1
    * bind-debuginfo-9.20.15-150700.3.12.1
  * Server Applications Module 15-SP7 (noarch)
    * bind-doc-9.20.15-150700.3.12.1
  * Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * bind-debugsource-9.20.15-150700.3.12.1
    * bind-utils-debuginfo-9.20.15-150700.3.12.1
    * bind-debuginfo-9.20.15-150700.3.12.1
    * bind-utils-9.20.15-150700.3.12.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-40778.html
  * https://www.suse.com/security/cve/CVE-2025-40780.html
  * https://www.suse.com/security/cve/CVE-2025-8677.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1252378
  * https://bugzilla.suse.com/show_bug.cgi?id=1252379
  * https://bugzilla.suse.com/show_bug.cgi?id=1252380

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