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SUSE QEMU Important Denial Of Service Buffer Overflow Vuln 2026-0288

SUSE QEMU Important Denial Of Service Buffer Overflow Vuln 2026-0288

Linuxsecurity •LinuxSecurity Advisories • January 26, 2026

## 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] spec: require qemu-hw-display-virtio-gpu-pci for x86 too. * [openSUSE][RPM] spec: make glusterfs support conditional (bsc#1254494). * [openSUSE][RPM]: really fix *-virtio-gpu-pci dependency on ARM (bsc#1254286). * block/curl: fix curl internal handles handling (bsc#1252768). Read the Full Advisory

## 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] spec: require qemu-hw-display-virtio-gpu-pci for x86 too. * [openSUSE][RPM] spec: make glusterfs support conditional (bsc#1254494). * [openSUSE][RPM]: really fix *-virtio-gpu-pci dependency on ARM (bsc#1254286). * block/curl: fix curl internal handles handling (bsc#1252768). Read the Full Advisory

* bsc#1230042 * bsc#1250984 * bsc#1252768 * bsc#1253002 * bsc#1254286 * bsc#1254494 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: * Basesystem Module 15-SP7 * Server Applications Module 15-SP7 * SUSE Linux Enterprise Desktop 15 SP7 Read the Full Advisory

* 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

* Basesystem Module 15-SP7

* Server Applications Module 15-SP7

* SUSE Linux Enterprise Desktop 15 SP7

Read the Full Advisory