SUSE-SU-2026:2974-1: important: Security update for dnsmasq

[SLE-UPDATES]

# Security update for dnsmasq

Announcement ID: SUSE-SU-2026:2974-1  
Release Date: 2026-07-14T11:36:52Z  
Rating: important  
References:

  * bsc#1268764
  * bsc#1268882

  
Cross-References:

  * CVE-2026-12725
  * CVE-2026-12969

  
CVSS scores:

  * CVE-2026-12725 ( SUSE ):  8.2
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-12725 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-12725 ( NVD ):  5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-12969 ( SUSE ):  6.9
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-12969 ( SUSE ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
  * CVE-2026-12969 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

  
Affected Products:

  * SUSE Linux Enterprise High Performance Computing 12 SP5
  * SUSE Linux Enterprise Server 12 SP5
  * SUSE Linux Enterprise Server 12 SP5 LTSS
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security
  * SUSE Linux Enterprise Server for SAP Applications 12 SP5

  
  
An update that solves two vulnerabilities can now be installed.

## Description:

This update for dnsmasq fixes the following issues:

  * CVE-2026-12725: heap buffer overflow in `log_query()` when logging
    unsupported DS/DNSKEY replies (bsc#1268764).
  * CVE-2026-12969: out-of-bounds read in `find_soa()` due to missing extrabytes
    validation (bsc#1268882).

Changes for dnsmasq:

  * Update to 2.93:
  * Fix a corner-case in DNSSEC validation with wildcards.
  * Fix DNSSEC failure with spurious RRSIGs.
  * Fix DNSSEC fail with CNAME replies to DS queries.
  * Fix regression in 2.92 release which broke DHCPv6 when a DHCP relay is in
    use.
  * Modify the inotify implementation so that inotify watches are only created
    after dnsmasq has changed permissions and userid.

## 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 12 SP5 LTSS  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-2026-2974=1

  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-2974=1

## Package List:

  * SUSE Linux Enterprise Server 12 SP5 LTSS (aarch64 ppc64le s390x x86_64)
    * dnsmasq-2.93-18.32.1
    * dnsmasq-debuginfo-2.93-18.32.1
    * dnsmasq-debugsource-2.93-18.32.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
    * dnsmasq-2.93-18.32.1
    * dnsmasq-debuginfo-2.93-18.32.1
    * dnsmasq-debugsource-2.93-18.32.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-12725.html
  * https://www.suse.com/security/cve/CVE-2026-12969.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1268764
  * https://bugzilla.suse.com/show_bug.cgi?id=1268882

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