Alerts This Week
Warning Icon 1 1,213
Alerts This Week
Warning Icon 1 1,213

openSUSE BIND Important Denial of Service Fix 2026-21123-1

opensuse
Calendar Grey June 30, 2026
Dist Opensuse Esm H88
Update for openSUSE addresses 6 issues in BIND to enhance security and performance. Critical fixes included.
An update that solves 6 vulnerabilities and has 6 bug fixes can now be installed.

Description

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 openSUSE security update use the suse recommended installation methods

like YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

- openSUSE Leap 16.0

zypper in -t patch openSUSE-Leap-16.0-988=1

Topics%20covered

Topics Covered

security advisory denial of service bind important memory exhaustion OpenSUSE

Patch

Package List

- openSUSE Leap 16.0:

bind-9.20.23-160000.1.1

bind-doc-9.20.23-160000.1.1

bind-modules-bdbhpt-9.20.23-160000.1.1

bind-modules-generic-9.20.23-160000.1.1

bind-modules-ldap-9.20.23-160000.1.1

bind-modules-mysql-9.20.23-160000.1.1

bind-modules-perl-9.20.23-160000.1.1

bind-modules-sqlite3-9.20.23-160000.1.1

bind-utils-9.20.23-160000.1.1

References

* bsc#1265591

* bsc#1265592

* bsc#1265593

* bsc#1265594

* bsc#1265595

* bsc#1265596

References:

* https://www.suse.com/security/cve/CVE-2026-3039.html

* https://www.suse.com/security/cve/CVE-2026-3592.html

* https://www.suse.com/security/cve/CVE-2026-3593.html

* https://www.suse.com/security/cve/CVE-2026-5946.html

* https://www.suse.com/security/cve/CVE-2026-5947.html

* https://www.suse.com/security/cve/CVE-2026-5950.html

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: openSUSE-SU-2026:21123-1
Rating: important
Affected Products: openSUSE Leap 16.0 -------------------------------------------------------------

Topics%20covered

Topics Covered

security advisory denial of service bind important memory exhaustion OpenSUSE

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here