========================================================================== Ubuntu Security Notice USN-5912-1 March 02, 2023 linux, linux-aws, linux-aws-5.15, linux-azure, linux-azure-5.15, linux-azure-fde, linux-gcp, linux-gcp-5.15, linux-gke, linux-gke-5.15, linux-hwe-5.15, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-oracle, linux-oracle-5.15 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-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-azure: Linux kernel for Microsoft Azure Cloud systems - linux-azure-fde: Linux kernel for Microsoft Azure CVM cloud systems - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-gke: Linux kernel for Google Container Engine (GKE) systems - linux-lowlatency: Linux low latency kernel - linux-oracle: Linux kernel for Oracle Cloud systems - linux-aws-5.15: Linux kernel for Amazon Web Services (AWS) systems - linux-azure-5.15: Linux kernel for Microsoft Azure cloud systems - linux-gcp-5.15: Linux kernel for Google Cloud Platform (GCP) systems - linux-gke-5.15: Linux kernel for Google Container Engine (GKE) systems - linux-hwe-5.15: Linux hardware enablement (HWE) kernel - linux-lowlatency-hwe-5.15: Linux low latency kernel - linux-oracle-5.15: Linux kernel for Oracle Cloud systems Details: It was discovered that the Upper Level Protocol (ULP) subsystem in the Linux kernel did not properly handle sockets entering the LISTEN state in certain protocols, 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-2023-0461) Davide Ornaghi discovered that the netfilter subsystem in the Linux kernel did not properly handle VLAN headers in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-0179) It was discovered that the NVMe driver in the Linux kernel did not properly handle reset events in some situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-3169) Maxim Levitsky discovered that the KVM nested virtualization (SVM) implementation for AMD processors in the Linux kernel did not properly handle nested shutdown execution. An attacker in a guest vm could use this to cause a denial of service (host kernel crash) (CVE-2022-3344) Gwangun Jung discovered a race condition in the IPv4 implementation in the Linux kernel when deleting multipath routes, resulting in an out-of-bounds read. An attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory). (CVE-2022-3435) It was discovered that a race condition existed in the Kernel Connection Multiplexor (KCM) socket implementation in the Linux kernel when releasing sockets in certain situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-3521) It was discovered that the Netronome Ethernet 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-2022-3545) It was discovered that the Intel i915 graphics driver in the Linux kernel did not perform a GPU TLB flush in some situations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2022-4139) It was discovered that a race condition existed in the Xen network backend driver in the Linux kernel when handling dropped packets in certain circumstances. An attacker could use this to cause a denial of service (kernel deadlock). (CVE-2022-42328, CVE-2022-42329) It was discovered that the NFSD implementation in the Linux kernel contained a use-after-free vulnerability. A remote attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-4379) It was discovered that a race condition existed in the x86 KVM subsystem implementation in the Linux kernel when nested virtualization and the TDP MMU are enabled. An attacker in a guest vm could use this to cause a denial of service (host OS crash). (CVE-2022-45869) It was discovered that the Atmel WILC1000 driver in the Linux kernel did not properly validate the number of channels, leading to an out-of-bounds write vulnerability. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-47518) It was discovered that the Atmel WILC1000 driver in the Linux kernel did not properly validate specific attributes, leading to an out-of-bounds write vulnerability. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-47519) It was discovered that the Atmel WILC1000 driver in the Linux kernel did not properly validate offsets, leading to an out-of-bounds read vulnerability. An attacker could use this to cause a denial of service (system crash). (CVE-2022-47520) It was discovered that the Atmel WILC1000 driver in the Linux kernel did not properly validate specific attributes, leading to a heap-based buffer overflow. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-47521) Lin Ma discovered a race condition in the io_uring subsystem in the Linux kernel, leading to a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-0468) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS: linux-image-5.15.0-1028-gke 5.15.0-1028.33 linux-image-5.15.0-1030-gcp 5.15.0-1030.37 linux-image-5.15.0-1030-oracle 5.15.0-1030.36 linux-image-5.15.0-1031-aws 5.15.0-1031.35 linux-image-5.15.0-1034-azure 5.15.0-1034.41 linux-image-5.15.0-1034-azure-fde 5.15.0-1034.41.1 linux-image-5.15.0-67-generic 5.15.0-67.74 linux-image-5.15.0-67-generic-64k 5.15.0-67.74 linux-image-5.15.0-67-generic-lpae 5.15.0-67.74 linux-image-5.15.0-67-lowlatency 5.15.0-67.74 linux-image-5.15.0-67-lowlatency-64k 5.15.0-67.74 linux-image-aws 5.15.0.1031.29 linux-image-aws-lts-22.04 5.15.0.1031.29 linux-image-azure 5.15.0.1034.30 linux-image-azure-fde 5.15.0.1034.41.11 linux-image-azure-lts-22.04 5.15.0.1034.30 linux-image-gcp 5.15.0.1030.25 linux-image-generic 5.15.0.67.65 linux-image-generic-64k 5.15.0.67.65 linux-image-generic-lpae 5.15.0.67.65 linux-image-gke 5.15.0.1028.27 linux-image-gke-5.15 5.15.0.1028.27 linux-image-lowlatency 5.15.0.67.72 linux-image-lowlatency-64k 5.15.0.67.72 linux-image-oracle 5.15.0.1030.25 linux-image-virtual 5.15.0.67.65 Ubuntu 20.04 LTS: linux-image-5.15.0-1028-gke 5.15.0-1028.33~20.04.1 linux-image-5.15.0-1030-gcp 5.15.0-1030.37~20.04.1 linux-image-5.15.0-1030-oracle 5.15.0-1030.36~20.04.1 linux-image-5.15.0-1031-aws 5.15.0-1031.35~20.04.1 linux-image-5.15.0-1034-azure 5.15.0-1034.41~20.04.1 linux-image-5.15.0-67-generic 5.15.0-67.74~20.04.1 linux-image-5.15.0-67-generic-64k 5.15.0-67.74~20.04.1 linux-image-5.15.0-67-generic-lpae 5.15.0-67.74~20.04.1 linux-image-5.15.0-67-lowlatency 5.15.0-67.74~20.04.1 linux-image-5.15.0-67-lowlatency-64k 5.15.0-67.74~20.04.1 linux-image-aws 5.15.0.1031.35~20.04.20 linux-image-azure 5.15.0.1034.41~20.04.24 linux-image-gcp 5.15.0.1030.37~20.04.1 linux-image-generic-64k-hwe-20.04 5.15.0.67.74~20.04.28 linux-image-generic-hwe-20.04 5.15.0.67.74~20.04.28 linux-image-generic-lpae-hwe-20.04 5.15.0.67.74~20.04.28 linux-image-gke-5.15 5.15.0.1028.33~20.04.1 linux-image-lowlatency-64k-hwe-20.04 5.15.0.67.74~20.04.25 linux-image-lowlatency-hwe-20.04 5.15.0.67.74~20.04.25 linux-image-oracle 5.15.0.1030.36~20.04.1 linux-image-virtual-hwe-20.04 5.15.0.67.74~20.04.28 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-5912-1 CVE-2022-3169, CVE-2022-3344, CVE-2022-3435, CVE-2022-3521, CVE-2022-3545, CVE-2022-4139, CVE-2022-42328, CVE-2022-42329, CVE-2022-4379, CVE-2022-45869, CVE-2022-47518, CVE-2022-47519, CVE-2022-47520, CVE-2022-47521, CVE-2023-0179, CVE-2023-0461, CVE-2023-0468 Package Information: https://launchpad.net/ubuntu/+source/linux/5.15.0-67.74 https://launchpad.net/ubuntu/+source/linux-aws/5.15.0-1031.35 https://launchpad.net/ubuntu/+source/linux-azure/5.15.0-1034.41 https://launchpad.net/ubuntu/+source/linux-azure-fde/5.15.0-1034.41.1 https://launchpad.net/ubuntu/+source/linux-gcp/5.15.0-1030.37 https://launchpad.net/ubuntu/+source/linux-gke/5.15.0-1028.33 https://launchpad.net/ubuntu/+source/linux-lowlatency/5.15.0-67.74 https://launchpad.net/ubuntu/+source/linux-oracle/5.15.0-1030.36 https://launchpad.net/ubuntu/+source/linux-aws-5.15/5.15.0-1031.35~20.04.1 https://launchpad.net/ubuntu/+source/linux-azure-5.15/5.15.0-1034.41~20.04.1 https://launchpad.net/ubuntu/+source/linux-gcp-5.15/5.15.0-1030.37~20.04.1 https://launchpad.net/ubuntu/+source/linux-gke-5.15/5.15.0-1028.33~20.04.1 https://launchpad.net/ubuntu/+source/linux-hwe-5.15/5.15.0-67.74~20.04.1 https://launchpad.net/ubuntu/+source/linux-lowlatency-hwe-5.15/5.15.0-67.74~20.04.1 https://launchpad.net/ubuntu/+source/linux-oracle-5.15/5.15.0-1030.36~20.04.1