========================================================================= Ubuntu Security Notice USN-5772-1 December 12, 2022 qemu vulnerabilities ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 22.10 - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 ESM - Ubuntu 14.04 ESM Summary: Several security issues were fixed in QEMU. Software Description: - qemu: Machine emulator and virtualizer Details: It was discovered that QEMU incorrectly handled bulk transfers from SPICE clients. A remote attacker could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. (CVE-2021-3682) It was discovered that QEMU did not properly manage memory when it transfers the USB packets. A malicious guest attacker could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2021-3750) It was discovered that the QEMU SCSI device emulation incorrectly handled certain MODE SELECT commands. An attacker inside the guest could possibly use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. (CVE-2021-3930) It was discovered that QEMU did not properly manage memory when it processing repeated messages to cancel the current SCSI request. A malicious privileged guest attacker could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2022-0216) It was discovered that QEMU did not properly manage memory when it using Tulip device emulation. A malicious guest attacker could use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 22.10. (CVE-2022-2962) It was discovered that QEMU did not properly manage memory when processing ClientCutText messages. A attacker could use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS and Ubuntu 22.10. (CVE-2022-3165) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 22.10: qemu-system 1:7.0+dfsg-7ubuntu2.1 qemu-system-arm 1:7.0+dfsg-7ubuntu2.1 qemu-system-mips 1:7.0+dfsg-7ubuntu2.1 qemu-system-misc 1:7.0+dfsg-7ubuntu2.1 qemu-system-ppc 1:7.0+dfsg-7ubuntu2.1 qemu-system-s390x 1:7.0+dfsg-7ubuntu2.1 qemu-system-sparc 1:7.0+dfsg-7ubuntu2.1 qemu-system-x86 1:7.0+dfsg-7ubuntu2.1 qemu-system-x86-xen 1:7.0+dfsg-7ubuntu2.1 Ubuntu 22.04 LTS: qemu 1:6.2+dfsg-2ubuntu6.6 qemu-system 1:6.2+dfsg-2ubuntu6.6 qemu-system-arm 1:6.2+dfsg-2ubuntu6.6 qemu-system-mips 1:6.2+dfsg-2ubuntu6.6 qemu-system-misc 1:6.2+dfsg-2ubuntu6.6 qemu-system-ppc 1:6.2+dfsg-2ubuntu6.6 qemu-system-s390x 1:6.2+dfsg-2ubuntu6.6 qemu-system-sparc 1:6.2+dfsg-2ubuntu6.6 qemu-system-x86 1:6.2+dfsg-2ubuntu6.6 qemu-system-x86-microvm 1:6.2+dfsg-2ubuntu6.6 qemu-system-x86-xen 1:6.2+dfsg-2ubuntu6.6 Ubuntu 20.04 LTS: qemu 1:4.2-3ubuntu6.24 qemu-system 1:4.2-3ubuntu6.24 qemu-system-arm 1:4.2-3ubuntu6.24 qemu-system-mips 1:4.2-3ubuntu6.24 qemu-system-misc 1:4.2-3ubuntu6.24 qemu-system-ppc 1:4.2-3ubuntu6.24 qemu-system-s390x 1:4.2-3ubuntu6.24 qemu-system-sparc 1:4.2-3ubuntu6.24 qemu-system-x86 1:4.2-3ubuntu6.24 qemu-system-x86-microvm 1:4.2-3ubuntu6.24 qemu-system-x86-xen 1:4.2-3ubuntu6.24 Ubuntu 18.04 LTS: qemu 1:2.11+dfsg-1ubuntu7.41 qemu-system 1:2.11+dfsg-1ubuntu7.41 qemu-system-arm 1:2.11+dfsg-1ubuntu7.41 qemu-system-mips 1:2.11+dfsg-1ubuntu7.41 qemu-system-misc 1:2.11+dfsg-1ubuntu7.41 qemu-system-ppc 1:2.11+dfsg-1ubuntu7.41 qemu-system-s390x 1:2.11+dfsg-1ubuntu7.41 qemu-system-sparc 1:2.11+dfsg-1ubuntu7.41 qemu-system-x86 1:2.11+dfsg-1ubuntu7.41 Ubuntu 16.04 ESM: qemu 1:2.5+dfsg-5ubuntu10.51+esm1 qemu-system 1:2.5+dfsg-5ubuntu10.51+esm1 qemu-system-aarch64 1:2.5+dfsg-5ubuntu10.51+esm1 qemu-system-arm 1:2.5+dfsg-5ubuntu10.51+esm1 qemu-system-mips 1:2.5+dfsg-5ubuntu10.51+esm1 qemu-system-misc 1:2.5+dfsg-5ubuntu10.51+esm1 qemu-system-ppc 1:2.5+dfsg-5ubuntu10.51+esm1 qemu-system-s390x 1:2.5+dfsg-5ubuntu10.51+esm1 qemu-system-sparc 1:2.5+dfsg-5ubuntu10.51+esm1 qemu-system-x86 1:2.5+dfsg-5ubuntu10.51+esm1 Ubuntu 14.04 ESM: qemu 2.0.0+dfsg-2ubuntu1.47+esm2 qemu-system 2.0.0+dfsg-2ubuntu1.47+esm2 qemu-system-aarch64 2.0.0+dfsg-2ubuntu1.47+esm2 qemu-system-arm 2.0.0+dfsg-2ubuntu1.47+esm2 qemu-system-mips 2.0.0+dfsg-2ubuntu1.47+esm2 qemu-system-misc 2.0.0+dfsg-2ubuntu1.47+esm2 qemu-system-ppc 2.0.0+dfsg-2ubuntu1.47+esm2 qemu-system-sparc 2.0.0+dfsg-2ubuntu1.47+esm2 qemu-system-x86 2.0.0+dfsg-2ubuntu1.47+esm2 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-5772-1 CVE-2021-3682, CVE-2021-3750, CVE-2021-3930, CVE-2022-0216, CVE-2022-2962, CVE-2022-3165 Package Information: https://launchpad.net/ubuntu/+source/qemu/1:7.0+dfsg-7ubuntu2.1 https://launchpad.net/ubuntu/+source/qemu/1:6.2+dfsg-2ubuntu6.6 https://launchpad.net/ubuntu/+source/qemu/1:4.2-3ubuntu6.24 https://launchpad.net/ubuntu/+source/qemu/1:2.11+dfsg-1ubuntu7.41