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openSUSE: QEMU Important Buffer Overflow Crashes SUSE-SU-2026:0043-1

opensuse
Calendar Grey January 7, 2026
Dist Opensuse Esm H88
Three vulnerabilities fixed in QEMU for openSUSE with important severity. Immediate action recommended for affected users.
An update that solves three vulnerabilities and has two security fixes can now be installed.

Description

This update for qemu fixes the following issues:

Security issues fixed:

* CVE-2023-1544: out-of-bounds read in VMWare's paravirtual RDMA device

operations can be exploited through a malicious guest driver to crash the

QEMU process on the host (bsc#1209554).

* CVE-2024-6505: heap-based buffer overflow in the virtio-net device

operations can be exploited by a malicious privileged user to crash the QEMU

process on the host (bsc#1227397).

* CVE-2025-12464: stack-based buffer overflow in the e1000 network device

operations can be exploited by a malicious guest user to crash the QEMU

process on the host (bsc#1253002).

Other updates and bugfixes:

* [openSUSE][RPM] spec: require qemu-hw-display-virtio-gpu-pci for x86 too.

* [openSUSE][RPM} spec: delete old specfile constructs.

* block/curl: fix curl internal handles handling (bsc#1252768).

* [openSUSE][RPM]: really fix *-virtio-gpu-pci dependency on ARM

(bsc#1254286).

Topics%20covered

Topics Covered

security advisory buffer overflow important heap overflow QEMU OpenSUSE

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:

* SUSE Linux Enterprise Server for SAP Applications 15 SP4

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-43=1

* SUSE Manager Proxy 4.3 LTS

zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Proxy-4.3-LTS-2026-43=1

* SUSE Manager Retail Branch Server 4.3 LTS

zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Retail-Branch-

Server-4.3-LTS-2026-43=1

* SUSE Manager Server 4.3 LTS

zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Server-4.3-LTS-2026-43=1

* openSUSE Leap 15.4

zypper in -t patch SUSE-2026-43=1

* SUSE Linux Enterprise Micro for Rancher 5.3

zypper in -t patch SUSE-SLE-Micro-5.3-2026-43=1

* SUSE Linux Enterprise Micro 5.3

zypper in -t patch SUSE-SLE-Micro-5.3-2026-43=1

* SUSE Linux Enterprise Micro for Rancher 5.4

zypper in -t patch SUSE-SLE-Micro-5.4-2026-43=1

* SUSE Linux Enterprise Micro...

Read the Full Advisory

Package List

* SUSE Linux Enterprise Server for SAP Applications 15 SP4 (ppc64le x86_64)

* qemu-block-curl-6.2.0-150400.37.46.1

* qemu-hw-usb-host-debuginfo-6.2.0-150400.37.46.1

* qemu-ui-opengl-debuginfo-6.2.0-150400.37.46.1

* qemu-hw-usb-host-6.2.0-150400.37.46.1

* qemu-hw-usb-redirect-6.2.0-150400.37.46.1

* qemu-hw-display-virtio-vga-debuginfo-6.2.0-150400.37.46.1

* qemu-block-iscsi-debuginfo-6.2.0-150400.37.46.1

* qemu-guest-agent-debuginfo-6.2.0-150400.37.46.1

* qemu-6.2.0-150400.37.46.1

* qemu-ui-curses-6.2.0-150400.37.46.1

* qemu-lang-6.2.0-150400.37.46.1

* qemu-debuginfo-6.2.0-150400.37.46.1

* qemu-hw-display-qxl-6.2.0-150400.37.46.1

* qemu-debugsource-6.2.0-150400.37.46.1

* qemu-block-rbd-6.2.0-150400.37.46.1

* qemu-hw-display-virtio-vga-6.2.0-150400.37.46.1

* qemu-tools-6.2.0-150400.37.46.1

* qemu-block-ssh-debuginfo-6.2.0-150400.37.46.1

* qemu-ui-gtk-6.2.0-150400.37.46.1

* qemu-chardev-baum-6.2.0-150400.37.46.1

* qemu-block-iscsi-6.2.0-150400.37.46.1

* qemu-chardev-spice-6.2.0-150400.37.46.1

*...

Read the Full Advisory

References

* bsc#1209554

* bsc#1227397

* bsc#1252768

* bsc#1253002

* bsc#1254286

## References:

* https://www.suse.com/security/cve/CVE-2023-1544.html

* https://www.suse.com/security/cve/CVE-2024-6505.html

* https://www.suse.com/security/cve/CVE-2025-12464.html

* https://bugzilla.suse.com/show_bug.cgi?id=1209554

* https://bugzilla.suse.com/show_bug.cgi?id=1227397

* https://bugzilla.suse.com/show_bug.cgi?id=1252768

* https://bugzilla.suse.com/show_bug.cgi?id=1253002

* https://bugzilla.suse.com/show_bug.cgi?id=1254286

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:0043-1
Release Date: 2026-01-06T16:03:08Z
Affected Products: * openSUSE Leap 15.4 * 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 Micro 5.3 * SUSE Linux Enterprise Micro 5.4 * SUSE Linux Enterprise Micro for Rancher 5.3 * SUSE Linux Enterprise Micro for Rancher 5.4 * SUSE Linux Enterprise Server 15 SP4 * SUSE Linux Enterprise Server 15 SP4 LTSS * SUSE Linux Enterprise Server for SAP Applications 15 SP4 * SUSE Manager Proxy 4.3 * SUSE Manager Proxy 4.3 LTS * SUSE Manager Retail Branch Server 4.3 * SUSE Manager Retail Branch Server 4.3 LTS * SUSE Manager Server 4.3 * SUSE Manager Server 4.3 LTS

Topics%20covered

Topics Covered

security advisory buffer overflow important heap overflow QEMU OpenSUSE

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