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openSUSE: qemu Important Denial of Service Fixes 2026:0022-1

suse
Calendar Grey January 5, 2026
Dist Suse Esm H88
Two vulnerabilities addressed in the important SUSE security update for qemu, with fixes against remote exploits.
An update that solves two vulnerabilities and has two security fixes can now be installed.

Summary

## This update for qemu fixes the following issues: Security issues fixed: * 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). * CVE-2025-11234: use-after-free in WebSocket handshake operations can be exploited by a malicious client with network access to the VNC WebSocket port to cause a denial-of-service (bsc#1250984). Other updates and bugfixes: * [openSUSE][RPM]: really fix *-virtio-gpu-pci dependency on ARM (bsc#1254286). * block/curl: fix curl internal handles handling (bsc#1252768). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

Topics%20covered

Topics Covered

security advisory denial of service important QEMU OpenSUSE stack-based buffer overflow

References

* bsc#1250984

* bsc#1252768

* bsc#1253002

* bsc#1254286

Cross-

* CVE-2025-11234

* CVE-2025-12464

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

* CVE-2025-12464 ( SUSE ): 6.9

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

* CVE-2025-12464 ( SUSE ): 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2025-12464 ( NVD ): 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:0022-1
Release Date: 2026-01-05T11:19:59Z
Rating: important

Topics%20covered

Topics Covered

security advisory denial of service important QEMU OpenSUSE stack-based buffer overflow

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