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openSUSE Important Fix for Kubernetes 1.23 Denial of Service Issues

opensuse
Calendar Grey June 10, 2026
Dist Opensuse Esm H88
# Security update for kubernetes1.23 Announcement ID: SUSE-SU-2026:2315-1 Release Date: 2026-06-09T1
An update that solves two vulnerabilities and has one security fix can now be installed.

Description

This update for kubernetes1.23 fixes the following issues

* CVE-2026-33814: golang.org/x/net/http2: infinite loop in HTTP/2 transport

when given bad SETTINGS_MAX_FRAME_SIZE (bsc#1265740).

* CVE-2026-35469: github.com/moby/spdystream: memory amplification in SPDY

frame parsing leads to denial of service (bsc#1262271).

Topics%20covered

Topics Covered

security advisory denial of service important OpenSUSE memory amplification cve-2026-33814

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 15.3

zypper in -t patch SUSE-2026-2315=1

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4

zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-2315=1

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4

zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-2315=1

* SUSE Linux Enterprise Server 15 SP4 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-2315=1

* SUSE Linux Enterprise Server for SAP Applications 15 SP4

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-2315=1

Package List

* openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64)

* kubernetes1.23-kubeadm-1.23.17-150300.7.17.1

* kubernetes1.23-kubelet-common-1.23.17-150300.7.17.1

* kubernetes1.23-controller-manager-1.23.17-150300.7.17.1

* kubernetes1.23-apiserver-1.23.17-150300.7.17.1

* kubernetes1.23-client-common-1.23.17-150300.7.17.1

* kubernetes1.23-scheduler-1.23.17-150300.7.17.1

* kubernetes1.23-proxy-1.23.17-150300.7.17.1

* kubernetes1.23-client-1.23.17-150300.7.17.1

* kubernetes1.23-kubelet-1.23.17-150300.7.17.1

* openSUSE Leap 15.3 (noarch)

* kubernetes1.23-client-fish-completion-1.23.17-150300.7.17.1

* kubernetes1.23-client-bash-completion-1.23.17-150300.7.17.1

* openSUSE Leap 15.3 (ppc64le)

* kubernetes1.23-apiserver-debuginfo-1.23.17-150300.7.17.1

* kubernetes1.23-client-debuginfo-1.23.17-150300.7.17.1

* kubernetes1.23-scheduler-debuginfo-1.23.17-150300.7.17.1

* kubernetes1.23-kubeadm-debuginfo-1.23.17-150300.7.17.1

* kubernetes1.23-proxy-debuginfo-1.23.17-150300.7.17.1

*...

Read the Full Advisory

References

* bsc#1251168

* bsc#1262271

* bsc#1265740

## References:

* https://www.suse.com/security/cve/CVE-2026-33814.html

* https://www.suse.com/security/cve/CVE-2026-35469.html

* https://bugzilla.suse.com/show_bug.cgi?id=1251168

* https://bugzilla.suse.com/show_bug.cgi?id=1262271

* https://bugzilla.suse.com/show_bug.cgi?id=1265740

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2315-1
Release Date: 2026-06-09T12:51:53Z
Affected Products: * openSUSE Leap 15.3 * SUSE Linux Enterprise High Performance Computing 15 SP4 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 * SUSE Linux Enterprise Server 15 SP4 * SUSE Linux Enterprise Server 15 SP4 LTSS * SUSE Linux Enterprise Server for SAP Applications 15 SP4

Topics%20covered

Topics Covered

security advisory denial of service important OpenSUSE memory amplification cve-2026-33814

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