========================================================================== Ubuntu Security Notice USN-5792-1 January 06, 2023 linux, linux-gcp, linux-gke, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-kvm, linux-lowlatency, linux-oracle, linux-raspi, vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux: Linux kernel - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-gke: Linux kernel for Google Container Engine (GKE) systems - linux-gkeop: Linux kernel for Google Container Engine (GKE) systems - linux-ibm: Linux kernel for IBM cloud systems - linux-kvm: Linux kernel for cloud environments - linux-lowlatency: Linux low latency kernel - linux-oracle: Linux kernel for Oracle Cloud systems - linux-raspi: Linux kernel for Raspberry Pi systems - linux-hwe-5.15: Linux hardware enablement (HWE) kernel Details: Mingwei Zhang discovered that the KVM implementation for AMD processors in the Linux kernel did not properly handle cache coherency with Secure Encrypted Virtualization (SEV). A local attacker could possibly use this to cause a denial of service (host system crash). (CVE-2022-0171) It was discovered that a race condition existed in the Android Binder IPC subsystem in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-20421) David Leadbeater discovered that the netfilter IRC protocol tracking implementation in the Linux Kernel incorrectly handled certain message payloads in some situations. A remote attacker could possibly use this to cause a denial of service or bypass firewall filtering. (CVE-2022-2663) It was discovered that the Intel 740 frame buffer driver in the Linux kernel contained a divide by zero vulnerability. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-3061) It was discovered that the sound subsystem in the Linux kernel contained a race condition in some situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-3303) Gwnaun Jung discovered that the SFB packet scheduling implementation in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-3586) It was discovered that the NILFS2 file system implementation in the Linux kernel did not properly deallocate memory in certain error conditions. An attacker could use this to cause a denial of service (memory exhaustion). (CVE-2022-3646) Khalid Masum discovered that the NILFS2 file system implementation in the Linux kernel did not properly handle certain error conditions, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2022-3649) Jann Horn discovered a race condition existed in the Linux kernel when unmapping VMAs in certain situations, resulting in possible use-after-free vulnerabilities. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-39188) Hyunwoo Kim discovered that an integer overflow vulnerability existed in the PXA3xx graphics driver in the Linux kernel. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-39842) It was discovered that a race condition existed in the EFI capsule loader driver in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-40307) Zheng Wang and Zhuorao Yang discovered that the RealTek RTL8712U wireless driver in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-4095) It was discovered that the USB monitoring (usbmon) component in the Linux kernel did not properly set permissions on memory mapped in to user space processes. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-43750) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS: linux-image-5.15.0-1012-gkeop 5.15.0-1012.16 linux-image-5.15.0-1022-ibm 5.15.0-1022.25 linux-image-5.15.0-1022-raspi 5.15.0-1022.24 linux-image-5.15.0-1022-raspi-nolpae 5.15.0-1022.24 linux-image-5.15.0-1024-gke 5.15.0-1024.29 linux-image-5.15.0-1025-kvm 5.15.0-1025.30 linux-image-5.15.0-1026-gcp 5.15.0-1026.33 linux-image-5.15.0-1026-oracle 5.15.0-1026.32 linux-image-5.15.0-57-generic 5.15.0-57.63 linux-image-5.15.0-57-generic-64k 5.15.0-57.63 linux-image-5.15.0-57-generic-lpae 5.15.0-57.63 linux-image-5.15.0-57-lowlatency 5.15.0-57.63 linux-image-5.15.0-57-lowlatency-64k 5.15.0-57.63 linux-image-gcp 5.15.0.1026.21 linux-image-generic 5.15.0.57.55 linux-image-generic-64k 5.15.0.57.55 linux-image-generic-64k-hwe-22.04 5.15.0.57.55 linux-image-generic-hwe-22.04 5.15.0.57.55 linux-image-generic-lpae 5.15.0.57.55 linux-image-generic-lpae-hwe-22.04 5.15.0.57.55 linux-image-gke 5.15.0.1024.23 linux-image-gke-5.15 5.15.0.1024.23 linux-image-gkeop 5.15.0.1012.11 linux-image-gkeop-5.15 5.15.0.1012.11 linux-image-ibm 5.15.0.1022.18 linux-image-kvm 5.15.0.1025.21 linux-image-lowlatency 5.15.0.57.50 linux-image-lowlatency-64k 5.15.0.57.50 linux-image-lowlatency-64k-hwe-22.04 5.15.0.57.50 linux-image-lowlatency-hwe-22.04 5.15.0.57.50 linux-image-oracle 5.15.0.1026.21 linux-image-raspi 5.15.0.1022.19 linux-image-raspi-nolpae 5.15.0.1022.19 linux-image-virtual 5.15.0.57.55 linux-image-virtual-hwe-22.04 5.15.0.57.55 Ubuntu 20.04 LTS: linux-image-5.15.0-57-generic 5.15.0-57.63~20.04.1 linux-image-5.15.0-57-generic-64k 5.15.0-57.63~20.04.1 linux-image-5.15.0-57-generic-lpae 5.15.0-57.63~20.04.1 linux-image-generic-64k-hwe-20.04 5.15.0.57.63~20.04.23 linux-image-generic-hwe-20.04 5.15.0.57.63~20.04.23 linux-image-generic-lpae-hwe-20.04 5.15.0.57.63~20.04.23 linux-image-virtual-hwe-20.04 5.15.0.57.63~20.04.23 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. References: https://ubuntu.com/security/notices/USN-5792-1 CVE-2022-0171, CVE-2022-20421, CVE-2022-2663, CVE-2022-3061, CVE-2022-3303, CVE-2022-3586, CVE-2022-3646, CVE-2022-3649, CVE-2022-39188, CVE-2022-39842, CVE-2022-40307, CVE-2022-4095, CVE-2022-43750 Package Information: https://launchpad.net/ubuntu/+source/linux/5.15.0-57.63 https://launchpad.net/ubuntu/+source/linux-gcp/5.15.0-1026.33 https://launchpad.net/ubuntu/+source/linux-gke/5.15.0-1024.29 https://launchpad.net/ubuntu/+source/linux-gkeop/5.15.0-1012.16 https://launchpad.net/ubuntu/+source/linux-ibm/5.15.0-1022.25 https://launchpad.net/ubuntu/+source/linux-kvm/5.15.0-1025.30 https://launchpad.net/ubuntu/+source/linux-lowlatency/5.15.0-57.63 https://launchpad.net/ubuntu/+source/linux-oracle/5.15.0-1026.32 https://launchpad.net/ubuntu/+source/linux-raspi/5.15.0-1022.24 https://launchpad.net/ubuntu/+source/linux-hwe-5.15/5.15.0-57.63~20.04.1