========================================================================== Ubuntu Security Notice USN-5793-1 January 06, 2023 linux, linux-aws, linux-kvm, linux-lowlatency, linux-raspi vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 22.10 Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux: Linux kernel - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-kvm: Linux kernel for cloud environments - linux-lowlatency: Linux low latency kernel - linux-raspi: Linux kernel for Raspberry Pi systems Details: It was discovered that the io_uring subsystem in the Linux kernel did not properly perform reference counting in some situations, 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-2022-3910) 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 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) It was discovered that the Sunplus Ethernet driver in the Linux kernel contained a read-after-free vulnerability. An attacker could possibly use this to expose sensitive information (kernel memory) (CVE-2022-3541) It was discovered that a memory leak existed in the Unix domain socket implementation of the Linux kernel. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2022-3543) 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-2022-3544, CVE-2022-3646) 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 hugetlb implementation 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) or expose sensitive information (kernel memory). (CVE-2022-3623) 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) It was discovered that a race condition existed in the MCTP implementation 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-2022-3977) 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 a race condition existed in the SMSC UFX USB driver implementation in the Linux kernel, leading to a use-after-free vulnerability. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-41849) It was discovered that a race condition existed in the Roccat HID 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-2022-41850) 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 22.10: linux-image-5.19.0-1011-raspi 5.19.0-1011.18 linux-image-5.19.0-1011-raspi-nolpae 5.19.0-1011.18 linux-image-5.19.0-1014-lowlatency 5.19.0-1014.15 linux-image-5.19.0-1014-lowlatency-64k 5.19.0-1014.15 linux-image-5.19.0-1015-kvm 5.19.0-1015.16 linux-image-5.19.0-1016-aws 5.19.0-1016.17 linux-image-5.19.0-28-generic 5.19.0-28.29 linux-image-5.19.0-28-generic-64k 5.19.0-28.29 linux-image-5.19.0-28-generic-lpae 5.19.0-28.29 linux-image-aws 5.19.0.1016.13 linux-image-generic 5.19.0.28.25 linux-image-generic-64k 5.19.0.28.25 linux-image-generic-64k-hwe-22.04 5.19.0.28.25 linux-image-generic-hwe-22.04 5.19.0.28.25 linux-image-generic-lpae 5.19.0.28.25 linux-image-generic-lpae-hwe-22.04 5.19.0.28.25 linux-image-kvm 5.19.0.1015.12 linux-image-lowlatency 5.19.0.1014.11 linux-image-lowlatency-64k 5.19.0.1014.11 linux-image-lowlatency-64k-hwe-22.04 5.19.0.1014.11 linux-image-lowlatency-hwe-22.04 5.19.0.1014.11 linux-image-oem-22.04 5.19.0.28.25 linux-image-raspi 5.19.0.1011.10 linux-image-raspi-nolpae 5.19.0.1011.10 linux-image-virtual 5.19.0.28.25 linux-image-virtual-hwe-22.04 5.19.0.28.25 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-5793-1 CVE-2022-20421, CVE-2022-2663, CVE-2022-3303, CVE-2022-3541, CVE-2022-3543, CVE-2022-3544, CVE-2022-3586, CVE-2022-3623, CVE-2022-3646, CVE-2022-3649, CVE-2022-3910, CVE-2022-3977, CVE-2022-40307, CVE-2022-4095, CVE-2022-41849, CVE-2022-41850, CVE-2022-43750 Package Information: https://launchpad.net/ubuntu/+source/linux/5.19.0-28.29 https://launchpad.net/ubuntu/+source/linux-aws/5.19.0-1016.17 https://launchpad.net/ubuntu/+source/linux-kvm/5.19.0-1015.16 https://launchpad.net/ubuntu/+source/linux-lowlatency/5.19.0-1014.15 https://launchpad.net/ubuntu/+source/linux-raspi/5.19.0-1011.18