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SUSE dnsmasq Important Buffer Overflow Out Of Bounds Fix 2026-3028-1

suse
Calendar Grey July 15, 2026
Scroller Suse
SUSE has released an important update for dnsmasq that addresses two vulnerabilities to enhance system security.
SUSE has released an important update for dnsmasq addressing two critical vulnerabilities, along with various improvements and fixes for affected products across several SUSE Linux...

Summary

## 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".

Topics%20covered

Topics Covered

security advisory buffer overflow SuSE important out-of-bounds dnsmasq

References

* bsc#1268764

* bsc#1268882

Cross-

* 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:

* Basesystem Module 15-SP7

* openSUSE Leap 15.4

* SUSE Linux Enterprise Desktop 15 SP7

* SUSE Linux Enterprise High Performance Computing 15 SP4

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:3028-1
Release Date: 2026-07-15T09:51:44Z
Rating: important

Topics%20covered

Topics Covered

security advisory buffer overflow SuSE important out-of-bounds dnsmasq

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