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openSUSE Leap 15.6 Qemu Critical Heap Overflow DoS Flaw 2026-2386-1

opensuse
Calendar Grey June 12, 2026
Dist Opensuse Esm H88
Critical updates for openSUSE qemu fix six issues including buffer overflows and denial of service vulnerabilities.
An update that solves six vulnerabilities and has one security fix can now be installed.

Description

This update for qemu fixes the following issues:

* CVE-2025-14876: qemu-kvm: Unbounded allocation in virtio-crypto

(bsc#1255400).

* CVE-2026-0665: out-of-bounds heap access can lead to a denial of service or

potential memory corruption (bsc#1256484).

* CVE-2026-2243: incorrect bounds check leads to heap out-of-bounds read and a

12-byte information leak when processing specially crafted VMDK files

(bsc#1258509).

* CVE-2026-3195: heap buffer overflow when reading input audio in the virtio-

snd device input callback due to insufficient checks in

`virtio_snd_pcm_in_cb` (bsc#1259080).

* CVE-2026-3196: integer overflow in the virtio-snd device via PCM_INFO

requests from the guest leads to unbounded memory allocation and host

denial-of-service (bsc#1259079).

* CVE-2026-3842: hyperv/syndbg: missing mapped-length guard after

cpu_physical_memory_map causes host OOB write (bsc#1262089).

Topics%20covered

Topics Covered

security advisory denial of service buffer overflow important 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:

* openSUSE Leap 15.6

zypper in -t patch SUSE-2026-2386=1

* SUSE Linux Enterprise Server 15 SP6 LTSS

zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-2386=1

* SUSE Linux Enterprise Server for SAP Applications 15 SP6

zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-2386=1

Package List

* openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)

* qemu-extra-debuginfo-8.2.10-150600.3.49.1

* qemu-hw-usb-redirect-8.2.10-150600.3.49.1

* qemu-ui-spice-app-debuginfo-8.2.10-150600.3.49.1

* qemu-audio-pa-debuginfo-8.2.10-150600.3.49.1

* qemu-vhost-user-gpu-debuginfo-8.2.10-150600.3.49.1

* qemu-tools-8.2.10-150600.3.49.1

* qemu-ui-curses-debuginfo-8.2.10-150600.3.49.1

* qemu-audio-dbus-8.2.10-150600.3.49.1

* qemu-chardev-spice-debuginfo-8.2.10-150600.3.49.1

* qemu-guest-agent-8.2.10-150600.3.49.1

* qemu-debugsource-8.2.10-150600.3.49.1

* qemu-ksm-8.2.10-150600.3.49.1

* qemu-accel-qtest-8.2.10-150600.3.49.1

* qemu-linux-user-debugsource-8.2.10-150600.3.49.1

* qemu-audio-pipewire-8.2.10-150600.3.49.1

* qemu-block-ssh-8.2.10-150600.3.49.1

* qemu-hw-display-virtio-gpu-pci-8.2.10-150600.3.49.1

* qemu-chardev-spice-8.2.10-150600.3.49.1

* qemu-arm-8.2.10-150600.3.49.1

* qemu-ivshmem-tools-8.2.10-150600.3.49.1

* qemu-block-gluster-debuginfo-8.2.10-150600.3.49.1

* qemu-s390x-8.2.10-150600.3.49.1

*...

Read the Full Advisory

References

* bsc#1199023

* bsc#1255400

* bsc#1256484

* bsc#1258509

* bsc#1259079

* bsc#1259080

* bsc#1262089

## References:

* https://www.suse.com/security/cve/CVE-2025-14876.html

* https://www.suse.com/security/cve/CVE-2026-0665.html

* https://www.suse.com/security/cve/CVE-2026-2243.html

* https://www.suse.com/security/cve/CVE-2026-3195.html

* https://www.suse.com/security/cve/CVE-2026-3196.html

* https://www.suse.com/security/cve/CVE-2026-3842.html

* https://bugzilla.suse.com/show_bug.cgi?id=1199023

* https://bugzilla.suse.com/show_bug.cgi?id=1255400

* https://bugzilla.suse.com/show_bug.cgi?id=1256484

* https://bugzilla.suse.com/show_bug.cgi?id=1258509

* https://bugzilla.suse.com/show_bug.cgi?id=1259079

* https://bugzilla.suse.com/show_bug.cgi?id=1259080

* https://bugzilla.suse.com/show_bug.cgi?id=1262089

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2386-1
Release Date: 2026-06-12T13:54:10Z
Affected Products: * openSUSE Leap 15.6 * SUSE Linux Enterprise Server 15 SP6 * SUSE Linux Enterprise Server 15 SP6 LTSS * SUSE Linux Enterprise Server for SAP Applications 15 SP6

Topics%20covered

Topics Covered

security advisory denial of service buffer overflow important QEMU OpenSUSE

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