Alerts This Week
Warning Icon 1 449
Alerts This Week
Warning Icon 1 449

Ubuntu 25.10 QEMU Critical Denial of Service Exec USN-8161-1

ubuntu
Calendar Grey April 10, 2026
Dist Ubuntu Esm H88
Several issues fixed in QEMU across Ubuntu versions; critical updates advised for denial of service and code execution.
Several security issues were fixed in QEMU.

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 25.10 - Ubuntu 24.04 LTS - Ubuntu 22.04 LTS Summary: Several security issues were fixed in QEMU. Software Description: - qemu: Machine emulator and virtualizer Details: It was discovered that the LSI53C895A SCSI Host Bus Adapter implementation of QEMU incorrectly handled memory. An attacker inside the guest could possibly use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2024-6519) It was discovered that QEMU could be made to read out of bounds when reading VMDK images. If a user or an automated system were tricked into opening a specially crafted VMDK image, an attacker could possibly use this issue to leak sensitive informaton or cause QEMU to crash, resulting in a denial of service. (CVE-2026-2243) It was discovered that the virtio-snd device implementation of QEMU could be made to write out of bounds. An attacker inside the gues...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu update instructions QEMU

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 25.10 qemu-system 1:10.1.0+ds-5ubuntu2.6 qemu-system-arm 1:10.1.0+ds-5ubuntu2.6 qemu-system-common 1:10.1.0+ds-5ubuntu2.6 qemu-system-data 1:10.1.0+ds-5ubuntu2.6 qemu-system-gui 1:10.1.0+ds-5ubuntu2.6 qemu-system-mips 1:10.1.0+ds-5ubuntu2.6 qemu-system-misc 1:10.1.0+ds-5ubuntu2.6 qemu-system-modules-opengl 1:10.1.0+ds-5ubuntu2.6 qemu-system-modules-spice 1:10.1.0+ds-5ubuntu2.6 qemu-system-ppc 1:10.1.0+ds-5ubuntu2.6 qemu-system-riscv 1:10.1.0+ds-5ubuntu2.6 qemu-system-s390x 1:10.1.0+ds-5ubuntu2.6 qemu-system-sparc 1:10.1.0+ds-5ubuntu2.6 qemu-system-x86 1:10.1.0+ds-5ubuntu2.6 qemu-system-x86-xen 1:10.1.0+ds-5ubuntu2.6 qemu-system-xen 1:10.1.0+ds-5ubuntu2.6 Ubuntu 24.04 LTS qemu-system 1:8.2.2+ds-0ubuntu1.16 qemu-system-arm 1:8.2.2+ds-0ubuntu1.16 qemu-system-common 1:8.2.2+ds-0ubuntu1.16 qemu-system-data 1:8.2.2+ds-0ubuntu1.16 qemu-system-gui 1:8.2.2+ds-0ubuntu1.16 qemu-system-mips 1:8.2.2+ds-0ubuntu1.16 qemu-system-misc 1:8.2.2+ds-0ubuntu1.16 qemu-system-modules-opengl 1:8.2.2+ds-0ubuntu1.16 qemu-system-modules-spice 1:8.2.2+ds-0ubuntu1.16 qemu-system-ppc 1:8.2.2+ds-0ubuntu1.16 qemu-system-s390x 1:8.2.2+ds-0ubuntu1.16 qemu-system-sparc 1:8.2.2+ds-0ubuntu1.16 qemu-system-x86 1:8.2.2+ds-0ubuntu1.16 qemu-system-x86-xen 1:8.2.2+ds-0ubuntu1.16 qemu-system-xen 1:8.2.2+ds-0ubuntu1.16 Ubuntu 22.04 LTS qemu 1:6.2+dfsg-2ubuntu6.30 qemu-system 1:6.2+dfsg-2ubuntu6.30 qemu-system-arm 1:6.2+dfsg-2ubuntu6.30 qemu-system-common 1:6.2+dfsg-2ubuntu6.30 qemu-system-data 1:6.2+dfsg-2ubuntu6.30 qemu-system-gui 1:6.2+dfsg-2ubuntu6.30 qemu-system-mips 1:6.2+dfsg-2ubuntu6.30 qemu-system-misc 1:6.2+dfsg-2ubuntu6.30 qemu-system-ppc 1:6.2+dfsg-2ubuntu6.30 qemu-system-s390x 1:6.2+dfsg-2ubuntu6.30 qemu-system-sparc 1:6.2+dfsg-2ubuntu6.30 qemu-system-x86 1:6.2+dfsg-2ubuntu6.30 qemu-system-x86-microvm 1:6.2+dfsg-2ubuntu6.30 qemu-system-x86-xen 1:6.2+dfsg-2ubuntu6.30 After a standard system update you need to restart all QEMU virtual machines to make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-8161-1

CVE-2024-6519, CVE-2026-2243, CVE-2026-3195, CVE-2026-3196,

CVE-2026-3842

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-8161-1

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu update instructions QEMU

Package Information

https://launchpad.net/ubuntu/+source/qemu/1:10.1.0+ds-5ubuntu2.6 https://launchpad.net/ubuntu/+source/qemu/1:8.2.2+ds-0ubuntu1.16 https://launchpad.net/ubuntu/+source/qemu/1:6.2+dfsg-2ubuntu6.30

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here