SUSE-SU-2026:0356-1: important: Security update for qemu

SLE-SECURITY-UPDATES null at suse.de
Mon Feb 2 12:30:03 UTC 2026 


# Security update for qemu

Announcement ID: SUSE-SU-2026:0356-1  
Release Date: 2026-02-01T21:18:57Z  
Rating: important  
References:

  * bsc#1250984

  
Cross-References:

  * CVE-2025-11234

  
CVSS scores:

  * CVE-2025-11234 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2025-11234 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2025-11234 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

  
Affected Products:

  * openSUSE Leap 15.3
  * SUSE Linux Enterprise Micro 5.2
  * SUSE Linux Enterprise Micro for Rancher 5.2

  
  
An update that solves one vulnerability can now be installed.

## Description:

This update for qemu fixes the following issues:

  * CVE-2025-11234: Fixed use-after-free in websocket handshake code can lead to
    denial of service (bsc#1250984).

## 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-2026-356=1

  * SUSE Linux Enterprise Micro 5.2  
    zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-356=1

  * SUSE Linux Enterprise Micro for Rancher 5.2  
    zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-356=1

## Package List:

  * openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64 i586)
    * qemu-extra-debuginfo-5.2.0-150300.142.1
    * qemu-block-gluster-5.2.0-150300.142.1
    * qemu-s390x-debuginfo-5.2.0-150300.142.1
    * qemu-vhost-user-gpu-debuginfo-5.2.0-150300.142.1
    * qemu-hw-usb-redirect-5.2.0-150300.142.1
    * qemu-ivshmem-tools-debuginfo-5.2.0-150300.142.1
    * qemu-ppc-5.2.0-150300.142.1
    * qemu-block-curl-debuginfo-5.2.0-150300.142.1
    * qemu-block-ssh-debuginfo-5.2.0-150300.142.1
    * qemu-block-iscsi-5.2.0-150300.142.1
    * qemu-block-dmg-debuginfo-5.2.0-150300.142.1
    * qemu-linux-user-debugsource-5.2.0-150300.142.1
    * qemu-5.2.0-150300.142.1
    * qemu-chardev-spice-debuginfo-5.2.0-150300.142.1
    * qemu-hw-s390x-virtio-gpu-ccw-5.2.0-150300.142.1
    * qemu-hw-usb-smartcard-debuginfo-5.2.0-150300.142.1
    * qemu-ivshmem-tools-5.2.0-150300.142.1
    * qemu-audio-pa-debuginfo-5.2.0-150300.142.1
    * qemu-ui-gtk-5.2.0-150300.142.1
    * qemu-hw-display-virtio-gpu-debuginfo-5.2.0-150300.142.1
    * qemu-audio-spice-debuginfo-5.2.0-150300.142.1
    * qemu-ui-spice-core-5.2.0-150300.142.1
    * qemu-ui-spice-core-debuginfo-5.2.0-150300.142.1
    * qemu-ui-curses-5.2.0-150300.142.1
    * qemu-block-nfs-5.2.0-150300.142.1
    * qemu-block-curl-5.2.0-150300.142.1
    * qemu-block-nfs-debuginfo-5.2.0-150300.142.1
    * qemu-hw-display-qxl-5.2.0-150300.142.1
    * qemu-linux-user-5.2.0-150300.142.1
    * qemu-lang-5.2.0-150300.142.1
    * qemu-guest-agent-5.2.0-150300.142.1
    * qemu-x86-5.2.0-150300.142.1
    * qemu-arm-5.2.0-150300.142.1
    * qemu-chardev-baum-debuginfo-5.2.0-150300.142.1
    * qemu-hw-display-virtio-gpu-5.2.0-150300.142.1
    * qemu-hw-display-virtio-gpu-pci-debuginfo-5.2.0-150300.142.1
    * qemu-audio-alsa-5.2.0-150300.142.1
    * qemu-block-ssh-5.2.0-150300.142.1
    * qemu-ui-opengl-debuginfo-5.2.0-150300.142.1
    * qemu-ui-opengl-5.2.0-150300.142.1
    * qemu-hw-display-qxl-debuginfo-5.2.0-150300.142.1
    * qemu-hw-usb-redirect-debuginfo-5.2.0-150300.142.1
    * qemu-guest-agent-debuginfo-5.2.0-150300.142.1
    * qemu-block-iscsi-debuginfo-5.2.0-150300.142.1
    * qemu-extra-5.2.0-150300.142.1
    * qemu-ui-spice-app-5.2.0-150300.142.1
    * qemu-arm-debuginfo-5.2.0-150300.142.1
    * qemu-audio-pa-5.2.0-150300.142.1
    * qemu-audio-spice-5.2.0-150300.142.1
    * qemu-debugsource-5.2.0-150300.142.1
    * qemu-s390x-5.2.0-150300.142.1
    * qemu-chardev-baum-5.2.0-150300.142.1
    * qemu-linux-user-debuginfo-5.2.0-150300.142.1
    * qemu-debuginfo-5.2.0-150300.142.1
    * qemu-chardev-spice-5.2.0-150300.142.1
    * qemu-hw-display-virtio-gpu-pci-5.2.0-150300.142.1
    * qemu-ppc-debuginfo-5.2.0-150300.142.1
    * qemu-ui-gtk-debuginfo-5.2.0-150300.142.1
    * qemu-ui-spice-app-debuginfo-5.2.0-150300.142.1
    * qemu-hw-s390x-virtio-gpu-ccw-debuginfo-5.2.0-150300.142.1
    * qemu-hw-display-virtio-vga-debuginfo-5.2.0-150300.142.1
    * qemu-hw-usb-smartcard-5.2.0-150300.142.1
    * qemu-ui-curses-debuginfo-5.2.0-150300.142.1
    * qemu-tools-5.2.0-150300.142.1
    * qemu-audio-alsa-debuginfo-5.2.0-150300.142.1
    * qemu-tools-debuginfo-5.2.0-150300.142.1
    * qemu-ksm-5.2.0-150300.142.1
    * qemu-block-gluster-debuginfo-5.2.0-150300.142.1
    * qemu-vhost-user-gpu-5.2.0-150300.142.1
    * qemu-x86-debuginfo-5.2.0-150300.142.1
    * qemu-testsuite-5.2.0-150300.142.2
    * qemu-block-dmg-5.2.0-150300.142.1
    * qemu-hw-display-virtio-vga-5.2.0-150300.142.1
  * openSUSE Leap 15.3 (s390x x86_64 i586)
    * qemu-kvm-5.2.0-150300.142.1
  * openSUSE Leap 15.3 (noarch)
    * qemu-sgabios-8-150300.142.1
    * qemu-microvm-5.2.0-150300.142.1
    * qemu-vgabios-1.14.0_0_g155821a-150300.142.1
    * qemu-SLOF-5.2.0-150300.142.1
    * qemu-ipxe-1.0.0+-150300.142.1
    * qemu-skiboot-5.2.0-150300.142.1
    * qemu-seabios-1.14.0_0_g155821a-150300.142.1
  * openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64)
    * qemu-block-rbd-5.2.0-150300.142.1
    * qemu-block-rbd-debuginfo-5.2.0-150300.142.1
  * SUSE Linux Enterprise Micro 5.2 (aarch64 s390x x86_64)
    * qemu-hw-usb-redirect-5.2.0-150300.142.1
    * qemu-5.2.0-150300.142.1
    * qemu-chardev-spice-debuginfo-5.2.0-150300.142.1
    * qemu-ui-spice-core-5.2.0-150300.142.1
    * qemu-ui-spice-core-debuginfo-5.2.0-150300.142.1
    * qemu-hw-display-virtio-gpu-debuginfo-5.2.0-150300.142.1
    * qemu-audio-spice-debuginfo-5.2.0-150300.142.1
    * qemu-hw-display-qxl-5.2.0-150300.142.1
    * qemu-guest-agent-5.2.0-150300.142.1
    * qemu-hw-display-virtio-gpu-5.2.0-150300.142.1
    * qemu-ui-opengl-debuginfo-5.2.0-150300.142.1
    * qemu-ui-opengl-5.2.0-150300.142.1
    * qemu-hw-display-qxl-debuginfo-5.2.0-150300.142.1
    * qemu-hw-usb-redirect-debuginfo-5.2.0-150300.142.1
    * qemu-guest-agent-debuginfo-5.2.0-150300.142.1
    * qemu-debugsource-5.2.0-150300.142.1
    * qemu-audio-spice-5.2.0-150300.142.1
    * qemu-debuginfo-5.2.0-150300.142.1
    * qemu-chardev-spice-5.2.0-150300.142.1
    * qemu-hw-display-virtio-vga-debuginfo-5.2.0-150300.142.1
    * qemu-tools-5.2.0-150300.142.1
    * qemu-tools-debuginfo-5.2.0-150300.142.1
    * qemu-hw-display-virtio-vga-5.2.0-150300.142.1
  * SUSE Linux Enterprise Micro 5.2 (aarch64)
    * qemu-arm-debuginfo-5.2.0-150300.142.1
    * qemu-arm-5.2.0-150300.142.1
  * SUSE Linux Enterprise Micro 5.2 (noarch)
    * qemu-ipxe-1.0.0+-150300.142.1
    * qemu-seabios-1.14.0_0_g155821a-150300.142.1
    * qemu-vgabios-1.14.0_0_g155821a-150300.142.1
    * qemu-sgabios-8-150300.142.1
  * SUSE Linux Enterprise Micro 5.2 (s390x)
    * qemu-s390x-5.2.0-150300.142.1
    * qemu-s390x-debuginfo-5.2.0-150300.142.1
  * SUSE Linux Enterprise Micro 5.2 (x86_64)
    * qemu-x86-debuginfo-5.2.0-150300.142.1
    * qemu-x86-5.2.0-150300.142.1
  * SUSE Linux Enterprise Micro for Rancher 5.2 (aarch64 s390x x86_64)
    * qemu-hw-usb-redirect-5.2.0-150300.142.1
    * qemu-5.2.0-150300.142.1
    * qemu-chardev-spice-debuginfo-5.2.0-150300.142.1
    * qemu-ui-spice-core-5.2.0-150300.142.1
    * qemu-ui-spice-core-debuginfo-5.2.0-150300.142.1
    * qemu-hw-display-virtio-gpu-debuginfo-5.2.0-150300.142.1
    * qemu-audio-spice-debuginfo-5.2.0-150300.142.1
    * qemu-hw-display-qxl-5.2.0-150300.142.1
    * qemu-guest-agent-5.2.0-150300.142.1
    * qemu-hw-display-virtio-gpu-5.2.0-150300.142.1
    * qemu-ui-opengl-debuginfo-5.2.0-150300.142.1
    * qemu-ui-opengl-5.2.0-150300.142.1
    * qemu-hw-display-qxl-debuginfo-5.2.0-150300.142.1
    * qemu-hw-usb-redirect-debuginfo-5.2.0-150300.142.1
    * qemu-guest-agent-debuginfo-5.2.0-150300.142.1
    * qemu-debugsource-5.2.0-150300.142.1
    * qemu-audio-spice-5.2.0-150300.142.1
    * qemu-debuginfo-5.2.0-150300.142.1
    * qemu-chardev-spice-5.2.0-150300.142.1
    * qemu-hw-display-virtio-vga-debuginfo-5.2.0-150300.142.1
    * qemu-tools-5.2.0-150300.142.1
    * qemu-tools-debuginfo-5.2.0-150300.142.1
    * qemu-hw-display-virtio-vga-5.2.0-150300.142.1
  * SUSE Linux Enterprise Micro for Rancher 5.2 (aarch64)
    * qemu-arm-debuginfo-5.2.0-150300.142.1
    * qemu-arm-5.2.0-150300.142.1
  * SUSE Linux Enterprise Micro for Rancher 5.2 (noarch)
    * qemu-ipxe-1.0.0+-150300.142.1
    * qemu-seabios-1.14.0_0_g155821a-150300.142.1
    * qemu-vgabios-1.14.0_0_g155821a-150300.142.1
    * qemu-sgabios-8-150300.142.1
  * SUSE Linux Enterprise Micro for Rancher 5.2 (s390x)
    * qemu-s390x-5.2.0-150300.142.1
    * qemu-s390x-debuginfo-5.2.0-150300.142.1
  * SUSE Linux Enterprise Micro for Rancher 5.2 (x86_64)
    * qemu-x86-debuginfo-5.2.0-150300.142.1
    * qemu-x86-5.2.0-150300.142.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-11234.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1250984

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