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SUSE BIND Important Memory Exhaustion Amplification Vulnern 2026-22198-1

suse
Calendar Grey June 23, 2026
Dist Suse Esm H88
Install an important update for BIND to fix six issues, including memory exhaustion and amplification risks.
An update that solves six vulnerabilities can now be installed.

Summary

## This update for bind fixes the following issues Upgrade to release 9.20.23: * CVE-2026-3039: BIND 9 server memory exhaustion during GSS-API TKEY negotiation (bsc#1265591). * CVE-2026-3592: Amplification vulnerabilities via self-pointed glue records (bsc#1265592). * CVE-2026-3593: Heap use-after-free vulnerability in BIND 9 DNS-over-HTTPS implementation (bsc#1265593). * CVE-2026-5946: Invalid handling of CLASS != IN (bsc#1265594). * CVE-2026-5947: SIG(0) validation during query flood may lead to undefined behavior (bsc#1265595). * CVE-2026-5950: Unbounded resend loop in BIND 9 resolver (bsc#1265596). ## 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 SuSE bind important memory exhaustion amplification

References

* bsc#1265591

* bsc#1265592

* bsc#1265593

* bsc#1265594

* bsc#1265595

* bsc#1265596

Cross-

* CVE-2026-3039

* CVE-2026-3592

* CVE-2026-3593

* CVE-2026-5946

* CVE-2026-5947

* CVE-2026-5950

CVSS scores:

* CVE-2026-3039 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-3039 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-3592 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

* CVE-2026-3592 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

* CVE-2026-3593 ( SUSE ): 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H

* CVE-2026-3593 ( NVD ): 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H

* CVE-2026-3593 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:22198-1
Release Date: 2026-06-20T06:54:39Z
Rating: important

Topics%20covered

Topics Covered

security advisory SuSE bind important memory exhaustion amplification

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