ESB-2026.3509

=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2026.3509 USN-8161-1: QEMU vulnerabilities 13 April 2026 =========================================================================== AUSCERT Security Bulletin Summary --------------------------------- Product: QEMU Publisher: Ubuntu Operating System: Ubuntu Resolution: Patch/Upgrade CVE Names: CVE-2024-6519 CVE-2026-2243 CVE-2026-3195 CVE-2026-3196 CVE-2026-3842 Original Bulletin: https://ubuntu.com/security/notices/USN-8161-1 Comment: CVSS (Max): 8.2* CVE-2024-6519 (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H) CVSS Source: [Ubuntu], Red Hat Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H * Not all CVSS available when published EPSS (Max): 0.0% (5th)* CVE-2024-6519 2026-04-12 * Not all EPSS found when published - --------------------------BEGIN INCLUDED TEXT-------------------- USN-8161-1: QEMU vulnerabilities Publication date 9 April 2026 Overview Several security issues were fixed in QEMU. Releases 25.10 24.04 LTS 22.04 LTS --------------------------------------------------------------------------------- Open side navigation Packages o 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 guest could possibly use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 24.04 LTS and Ubuntu 25.10. ( CVE-2026-3195 ) It was discovered that the virtio-snd device implementation of QEMU contained an arithmetic overflow. 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. This issue only affected Ubuntu 24.04 LTS and Ubuntu 25.10. ( CVE-2026-3196 ) It was discovered that the Hyper-V Synthetic Debugging device implementation of QEMU could me made to write out of bounds. 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. This issue only affected Ubuntu 24.04 LTS and Ubuntu 25.10. ( CVE-2026-3842 ) --------------------------------------------------------------------------------- Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu Release Package Version 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 25.10 questing 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 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 24.04 LTS noble 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 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 22.04 LTS jammy 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 --------------------------------------------------------------------------------- References o CVE-2026-3842 o CVE-2026-3196 o CVE-2026-3195 o CVE-2026-2243 o CVE-2024-6519 - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AUSCERT. 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