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openSUSE Unbound Important Remote Exec Issues Vuln 2026-2281-1

opensuse
Calendar Grey June 5, 2026
Dist Opensuse Esm H88
# Security update for unbound Announcement ID: SUSE-SU-2026:2281-1 Release Date: 2026-06-05T12:12:48
An update that solves 11 vulnerabilities can now be installed.

Description

This update for unbound fixes the following issues

* CVE-2026-32792: Packet of death with DNSCrypt (bsc#1265583).

* CVE-2026-33278: Possible remote code execution during DNSSEC validation

(bsc#1265587).

* CVE-2026-40622: "Ghost domain name" variant (bsc#1265581).

* CVE-2026-41292: Parsing a long list of incoming EDNS options degrades

performance (bsc#1265580).

* CVE-2026-42534: Jostle logic bypass degrades resolution performance

(bsc#1265585).

* CVE-2026-42923: Degradation of service with unbounded NSEC3 hash

calculations (bsc#1265589).

* CVE-2026-42944: Heap overflow and crash with multiple nsid, cookie, padding

EDNS options (bsc#1265578).

* CVE-2026-42959: Crash during DNSSEC validation of malicious content

(bsc#1265586).

* CVE-2026-42960: Possible cache poisoning attack while following delegation

(bsc#1265588).

* CVE-2026-44390: Unbounded name compression in certain cases causes

degradation of service (bsc#1265584).

*...

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Topics%20covered

Topics Covered

security advisory remote execution important service degradation OpenSUSE unbound

Patch

## 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:

* openSUSE Leap 15.6

zypper in -t patch SUSE-2026-2281=1

* SUSE Package Hub 15 15-SP7

zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP7-2026-2281=1

* SUSE Linux Enterprise Server 15 SP6 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-2281=1

* SUSE Linux Enterprise Server for SAP Applications 15 SP6

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-2281=1

* Basesystem Module 15-SP7

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-2281=1

Package List

* openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)

* unbound-python-debuginfo-1.20.0-150600.23.16.1

* libunbound-devel-mini-debugsource-1.20.0-150600.23.16.1

* libunbound-devel-mini-1.20.0-150600.23.16.1

* unbound-python-1.20.0-150600.23.16.1

* libunbound-devel-mini-debuginfo-1.20.0-150600.23.16.1

* unbound-debugsource-1.20.0-150600.23.16.1

* unbound-1.20.0-150600.23.16.1

* libunbound8-1.20.0-150600.23.16.1

* unbound-debuginfo-1.20.0-150600.23.16.1

* unbound-anchor-debuginfo-1.20.0-150600.23.16.1

* libunbound8-debuginfo-1.20.0-150600.23.16.1

* unbound-devel-1.20.0-150600.23.16.1

* unbound-anchor-1.20.0-150600.23.16.1

* openSUSE Leap 15.6 (noarch)

* unbound-munin-1.20.0-150600.23.16.1

* SUSE Package Hub 15 15-SP7 (aarch64 ppc64le s390x x86_64)

* unbound-python-debuginfo-1.20.0-150600.23.16.1

* unbound-python-1.20.0-150600.23.16.1

* unbound-debugsource-1.20.0-150600.23.16.1

* unbound-1.20.0-150600.23.16.1

* unbound-debuginfo-1.20.0-150600.23.16.1

* SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64...

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References

* bsc#1265578

* bsc#1265580

* bsc#1265581

* bsc#1265582

* bsc#1265583

* bsc#1265584

* bsc#1265585

* bsc#1265586

* bsc#1265587

* bsc#1265588

* bsc#1265589

## References:

* https://www.suse.com/security/cve/CVE-2026-32792.html

* https://www.suse.com/security/cve/CVE-2026-33278.html

* https://www.suse.com/security/cve/CVE-2026-40622.html

* https://www.suse.com/security/cve/CVE-2026-41292.html

* https://www.suse.com/security/cve/CVE-2026-42534.html

* https://www.suse.com/security/cve/CVE-2026-42923.html

* https://www.suse.com/security/cve/CVE-2026-42944.html

* https://www.suse.com/security/cve/CVE-2026-42959.html

* https://www.suse.com/security/cve/CVE-2026-42960.html

* https://www.suse.com/security/cve/CVE-2026-44390.html

* https://www.suse.com/security/cve/CVE-2026-44608.html

* https://bugzilla.suse.com/show_bug.cgi?id=1265578

* https://bugzilla.suse.com/show_bug.cgi?id=1265580

* https://bugzilla.suse.com/show_bug.cgi?id=1265581

* https://bugzilla.suse.com/show_bug.cgi?id=1265582

*...

Read the Full Advisory

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2281-1
Release Date: 2026-06-05T12:12:48Z
Affected Products: * Basesystem Module 15-SP7 * openSUSE Leap 15.6 * SUSE Linux Enterprise Desktop 15 SP7 * SUSE Linux Enterprise Real Time 15 SP7 * SUSE Linux Enterprise Server 15 SP6 * SUSE Linux Enterprise Server 15 SP6 LTSS * SUSE Linux Enterprise Server 15 SP7 * SUSE Linux Enterprise Server for SAP Applications 15 SP6 * SUSE Linux Enterprise Server for SAP Applications 15 SP7 * SUSE Package Hub 15 15-SP7

Topics%20covered

Topics Covered

security advisory remote execution important service degradation OpenSUSE unbound

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