An update for qemu is now available for openEuler-24.03-LTS-SP3 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2026-1848 Final 1.0 1.0 2026-04-11 Initial 2026-04-11 2026-04-11 openEuler SA Tool V1.0 2026-04-11 qemu security update An update for qemu is now available for openEuler-24.03-LTS-SP3 QEMU is a FAST! processor emulator using dynamic translation to achieve good emulation speed. Security Fix(es): A flaw was found in QEMU. If the QIOChannelWebsock object is freed while it is waiting to complete a handshake, a GSource is leaked. This can lead to the callback firing later on and triggering a use-after-free in the use of the channel. This can be abused by a malicious client with network access to the VNC WebSocket port to cause a denial of service during the WebSocket handshake prior to the VNC client authentication.(CVE-2025-11234) A stack-based buffer overflow was found in the QEMU e1000 network device. The code for padding short frames was dropped from individual network devices and moved to the net core code. The issue stems from the device's receive code still being able to process a short frame in loopback mode. This could lead to a buffer overrun in the e1000_receive_iov() function via the loopback code path. A malicious guest user could use this vulnerability to crash the QEMU process on the host, resulting in a denial of service.(CVE-2025-12464) An update for qemu is now available for openEuler-24.03-LTS-SP3. openEuler Security has rated this update as having a security impact of high. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. High qemu https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-1848 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2025-11234 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2025-12464 https://nvd.nist.gov/vuln/detail/CVE-2025-11234 https://nvd.nist.gov/vuln/detail/CVE-2025-12464 openEuler-24.03-LTS-SP3 qemu-8.2.0-72.oe2403sp3.aarch64.rpm qemu-block-curl-8.2.0-72.oe2403sp3.aarch64.rpm qemu-block-iscsi-8.2.0-72.oe2403sp3.aarch64.rpm qemu-block-rbd-8.2.0-72.oe2403sp3.aarch64.rpm qemu-block-ssh-8.2.0-72.oe2403sp3.aarch64.rpm qemu-debuginfo-8.2.0-72.oe2403sp3.aarch64.rpm qemu-debugsource-8.2.0-72.oe2403sp3.aarch64.rpm qemu-guest-agent-8.2.0-72.oe2403sp3.aarch64.rpm qemu-hw-usb-host-8.2.0-72.oe2403sp3.aarch64.rpm qemu-img-8.2.0-72.oe2403sp3.aarch64.rpm qemu-system-aarch64-8.2.0-72.oe2403sp3.aarch64.rpm qemu-system-arm-8.2.0-72.oe2403sp3.aarch64.rpm qemu-system-riscv-8.2.0-72.oe2403sp3.aarch64.rpm qemu-system-x86_64-8.2.0-72.oe2403sp3.aarch64.rpm qemu-user-8.2.0-72.oe2403sp3.aarch64.rpm qemu-user-binfmt-8.2.0-72.oe2403sp3.aarch64.rpm qemu-user-static-8.2.0-72.oe2403sp3.aarch64.rpm qemu-8.2.0-72.oe2403sp3.src.rpm qemu-8.2.0-72.oe2403sp3.x86_64.rpm qemu-block-curl-8.2.0-72.oe2403sp3.x86_64.rpm qemu-block-iscsi-8.2.0-72.oe2403sp3.x86_64.rpm qemu-block-rbd-8.2.0-72.oe2403sp3.x86_64.rpm qemu-block-ssh-8.2.0-72.oe2403sp3.x86_64.rpm qemu-debuginfo-8.2.0-72.oe2403sp3.x86_64.rpm qemu-debugsource-8.2.0-72.oe2403sp3.x86_64.rpm qemu-guest-agent-8.2.0-72.oe2403sp3.x86_64.rpm qemu-hw-usb-host-8.2.0-72.oe2403sp3.x86_64.rpm qemu-img-8.2.0-72.oe2403sp3.x86_64.rpm qemu-seabios-8.2.0-72.oe2403sp3.x86_64.rpm qemu-system-aarch64-8.2.0-72.oe2403sp3.x86_64.rpm qemu-system-arm-8.2.0-72.oe2403sp3.x86_64.rpm qemu-system-riscv-8.2.0-72.oe2403sp3.x86_64.rpm qemu-system-x86_64-8.2.0-72.oe2403sp3.x86_64.rpm qemu-user-8.2.0-72.oe2403sp3.x86_64.rpm qemu-user-binfmt-8.2.0-72.oe2403sp3.x86_64.rpm qemu-user-static-8.2.0-72.oe2403sp3.x86_64.rpm qemu-help-8.2.0-72.oe2403sp3.noarch.rpm A flaw was found in QEMU. If the QIOChannelWebsock object is freed while it is waiting to complete a handshake, a GSource is leaked. This can lead to the callback firing later on and triggering a use-after-free in the use of the channel. This can be abused by a malicious client with network access to the VNC WebSocket port to cause a denial of service during the WebSocket handshake prior to the VNC client authentication. 2026-04-11 CVE-2025-11234 openEuler-24.03-LTS-SP3 High 7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H qemu security update 2026-04-11 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-1848 A stack-based buffer overflow was found in the QEMU e1000 network device. The code for padding short frames was dropped from individual network devices and moved to the net core code. The issue stems from the device's receive code still being able to process a short frame in loopback mode. This could lead to a buffer overrun in the e1000_receive_iov() function via the loopback code path. A malicious guest user could use this vulnerability to crash the QEMU process on the host, resulting in a denial of service. 2026-04-11 CVE-2025-12464 openEuler-24.03-LTS-SP3 Medium 6.2 AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H qemu security update 2026-04-11 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-1848