========================================================================== Ubuntu Security Notice USN-6725-1 April 09, 2024 linux, linux-azure, linux-azure-5.15, linux-azure-fde, linux-azure-fde-5.15, linux-gcp, linux-gcp-5.15, linux-gke, linux-gkeop, linux-gkeop-5.15, linux-hwe-5.15, linux-ibm, linux-ibm-5.15, linux-intel-iotg, linux-intel-iotg-5.15, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-nvidia, linux-oracle, linux-oracle-5.15, 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-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-gkeop: Linux kernel for Google Container Engine (GKE) systems - linux-ibm: Linux kernel for IBM cloud systems - linux-intel-iotg: Linux kernel for Intel IoT platforms - linux-kvm: Linux kernel for cloud environments - linux-lowlatency: Linux low latency kernel - linux-nvidia: Linux kernel for NVIDIA systems - linux-oracle: Linux kernel for Oracle Cloud systems - linux-raspi: Linux kernel for Raspberry Pi systems - linux-azure-5.15: Linux kernel for Microsoft Azure cloud systems - linux-azure-fde-5.15: Linux kernel for Microsoft Azure CVM cloud systems - linux-gcp-5.15: Linux kernel for Google Cloud Platform (GCP) systems - linux-gkeop-5.15: Linux kernel for Google Container Engine (GKE) systems - linux-hwe-5.15: Linux hardware enablement (HWE) kernel - linux-ibm-5.15: Linux kernel for IBM cloud systems - linux-intel-iotg-5.15: Linux kernel for Intel IoT platforms - linux-lowlatency-hwe-5.15: Linux low latency kernel - linux-oracle-5.15: Linux kernel for Oracle Cloud systems Details: Chih-Yen Chang discovered that the KSMBD implementation in the Linux kernel did not properly validate certain data structure fields when parsing lease contexts, leading to an out-of-bounds read vulnerability. A remote attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2023-1194) Quentin Minster discovered that a race condition existed in the KSMBD implementation in the Linux kernel, leading to a use-after-free vulnerability. A remote attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-32254) It was discovered that a race condition existed in the KSMBD implementation in the Linux kernel when handling session connections, leading to a use- after-free vulnerability. A remote attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-32258) It was discovered that the KSMBD implementation in the Linux kernel did not properly validate buffer sizes in certain operations, leading to an integer underflow and out-of-bounds read vulnerability. A remote attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2023-38427) Chih-Yen Chang discovered that the KSMBD implementation in the Linux kernel did not properly validate SMB request protocol IDs, leading to a out-of- bounds read vulnerability. A remote attacker could possibly use this to cause a denial of service (system crash). (CVE-2023-38430) Chih-Yen Chang discovered that the KSMBD implementation in the Linux kernel did not properly validate packet header sizes in certain situations, leading to an out-of-bounds read vulnerability. A remote attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2023-38431) It was discovered that the KSMBD implementation in the Linux kernel did not properly handle session setup requests, leading to an out-of-bounds read vulnerability. A remote attacker could use this to expose sensitive information. (CVE-2023-3867) Pratyush Yadav discovered that the Xen network backend implementation in the Linux kernel did not properly handle zero length data request, leading to a null pointer dereference vulnerability. An attacker in a guest VM could possibly use this to cause a denial of service (host domain crash). (CVE-2023-46838) It was discovered that the IPv6 implementation of the Linux kernel did not properly manage route cache memory usage. A remote attacker could use this to cause a denial of service (memory exhaustion). (CVE-2023-52340) It was discovered that the device mapper driver in the Linux kernel did not properly validate target size during certain memory allocations. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-52429, CVE-2024-23851) Yang Chaoming discovered that the KSMBD implementation in the Linux kernel did not properly validate request buffer sizes, leading to an out-of-bounds read vulnerability. An attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2024-22705) Chenyuan Yang discovered that the btrfs file system in the Linux kernel did not properly handle read operations on newly created subvolumes in certain conditions. A local attacker could use this to cause a denial of service (system crash). (CVE-2024-23850) It was discovered that a race condition existed in the Bluetooth subsystem in the Linux kernel, leading to a null pointer dereference vulnerability. A privileged local attacker could use this to possibly cause a denial of service (system crash). (CVE-2024-24860) Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Architecture specifics; - Block layer; - Cryptographic API; - Android drivers; - EDAC drivers; - GPU drivers; - Media drivers; - Multifunction device drivers; - MTD block device drivers; - Network drivers; - NVME drivers; - TTY drivers; - Userspace I/O drivers; - EFI Variable file system; - F2FS file system; - GFS2 file system; - SMB network file system; - BPF subsystem; - IPv6 Networking; - Network Traffic Control; - AppArmor security module; (CVE-2023-52463, CVE-2023-52445, CVE-2023-52462, CVE-2023-52609, CVE-2023-52448, CVE-2023-52457, CVE-2023-52464, CVE-2023-52456, CVE-2023-52454, CVE-2023-52438, CVE-2023-52480, CVE-2023-52443, CVE-2023-52442, CVE-2024-26631, CVE-2023-52439, CVE-2023-52612, CVE-2024-26598, CVE-2024-26586, CVE-2024-26589, CVE-2023-52444, CVE-2023-52436, CVE-2024-26633, CVE-2024-26597, CVE-2023-52458, CVE-2024-26591, CVE-2023-52449, CVE-2023-52467, CVE-2023-52441, CVE-2023-52610, CVE-2023-52451, CVE-2023-52469, CVE-2023-52470) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS: linux-image-5.15.0-102-generic 5.15.0-102.112 linux-image-5.15.0-102-generic-64k 5.15.0-102.112 linux-image-5.15.0-102-generic-lpae 5.15.0-102.112 linux-image-5.15.0-102-lowlatency 5.15.0-102.112 linux-image-5.15.0-102-lowlatency-64k 5.15.0-102.112 linux-image-5.15.0-1040-gkeop 5.15.0-1040.46 linux-image-5.15.0-1048-nvidia 5.15.0-1048.48 linux-image-5.15.0-1048-nvidia-lowlatency 5.15.0-1048.48 linux-image-5.15.0-1050-ibm 5.15.0-1050.53 linux-image-5.15.0-1050-raspi 5.15.0-1050.53 linux-image-5.15.0-1052-intel-iotg 5.15.0-1052.58 linux-image-5.15.0-1054-gke 5.15.0-1054.59 linux-image-5.15.0-1054-kvm 5.15.0-1054.59 linux-image-5.15.0-1055-gcp 5.15.0-1055.63 linux-image-5.15.0-1055-oracle 5.15.0-1055.61 linux-image-5.15.0-1060-azure 5.15.0-1060.69 linux-image-5.15.0-1060-azure-fde 5.15.0-1060.69.1 linux-image-azure-fde-lts-22.04 5.15.0.1060.69.38 linux-image-azure-lts-22.04 5.15.0.1060.58 linux-image-gcp-lts-22.04 5.15.0.1055.51 linux-image-generic 5.15.0.102.99 linux-image-generic-64k 5.15.0.102.99 linux-image-generic-lpae 5.15.0.102.99 linux-image-gke 5.15.0.1054.53 linux-image-gke-5.15 5.15.0.1054.53 linux-image-gkeop 5.15.0.1040.39 linux-image-gkeop-5.15 5.15.0.1040.39 linux-image-ibm 5.15.0.1050.46 linux-image-intel-iotg 5.15.0.1052.52 linux-image-kvm 5.15.0.1054.50 linux-image-lowlatency 5.15.0.102.98 linux-image-lowlatency-64k 5.15.0.102.98 linux-image-nvidia 5.15.0.1048.48 linux-image-nvidia-lowlatency 5.15.0.1048.48 linux-image-oracle-lts-22.04 5.15.0.1055.51 linux-image-raspi 5.15.0.1050.48 linux-image-raspi-nolpae 5.15.0.1050.48 linux-image-virtual 5.15.0.102.99 Ubuntu 20.04 LTS: linux-image-5.15.0-102-generic 5.15.0-102.112~20.04.1 linux-image-5.15.0-102-generic-64k 5.15.0-102.112~20.04.1 linux-image-5.15.0-102-generic-lpae 5.15.0-102.112~20.04.1 linux-image-5.15.0-102-lowlatency 5.15.0-102.112~20.04.1 linux-image-5.15.0-102-lowlatency-64k 5.15.0-102.112~20.04.1 linux-image-5.15.0-1040-gkeop 5.15.0-1040.46~20.04.1 linux-image-5.15.0-1050-ibm 5.15.0-1050.53~20.04.1 linux-image-5.15.0-1052-intel-iotg 5.15.0-1052.58~20.04.1 linux-image-5.15.0-1055-gcp 5.15.0-1055.63~20.04.1 linux-image-5.15.0-1055-oracle 5.15.0-1055.61~20.04.1 linux-image-5.15.0-1060-azure 5.15.0-1060.69~20.04.1 linux-image-5.15.0-1060-azure-fde 5.15.0-1060.69~20.04.1.1 linux-image-azure 5.15.0.1060.69~20.04.1 linux-image-azure-cvm 5.15.0.1060.69~20.04.1 linux-image-azure-fde 5.15.0.1060.69~20.04.1.39 linux-image-gcp 5.15.0.1055.63~20.04.1 linux-image-generic-64k-hwe-20.04 5.15.0.102.112~20.04.1 linux-image-generic-hwe-20.04 5.15.0.102.112~20.04.1 linux-image-generic-lpae-hwe-20.04 5.15.0.102.112~20.04.1 linux-image-gkeop-5.15 5.15.0.1040.46~20.04.36 linux-image-ibm 5.15.0.1050.53~20.04.1 linux-image-intel 5.15.0.1052.58~20.04.1 linux-image-intel-iotg 5.15.0.1052.58~20.04.1 linux-image-lowlatency-64k-hwe-20.04 5.15.0.102.112~20.04.1 linux-image-lowlatency-hwe-20.04 5.15.0.102.112~20.04.1 linux-image-oem-20.04 5.15.0.102.112~20.04.1 linux-image-oem-20.04b 5.15.0.102.112~20.04.1 linux-image-oem-20.04c 5.15.0.102.112~20.04.1 linux-image-oem-20.04d 5.15.0.102.112~20.04.1 linux-image-oracle 5.15.0.1055.61~20.04.1 linux-image-virtual-hwe-20.04 5.15.0.102.112~20.04.1 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-6725-1 CVE-2023-1194, CVE-2023-32254, CVE-2023-32258, CVE-2023-38427, CVE-2023-38430, CVE-2023-38431, CVE-2023-3867, CVE-2023-46838, CVE-2023-52340, CVE-2023-52429, CVE-2023-52436, CVE-2023-52438, CVE-2023-52439, CVE-2023-52441, CVE-2023-52442, CVE-2023-52443, CVE-2023-52444, CVE-2023-52445, CVE-2023-52448, CVE-2023-52449, CVE-2023-52451, CVE-2023-52454, CVE-2023-52456, CVE-2023-52457, CVE-2023-52458, CVE-2023-52462, CVE-2023-52463, CVE-2023-52464, CVE-2023-52467, CVE-2023-52469, CVE-2023-52470, CVE-2023-52480, CVE-2023-52609, CVE-2023-52610, CVE-2023-52612, CVE-2024-22705, CVE-2024-23850, CVE-2024-23851, CVE-2024-24860, CVE-2024-26586, CVE-2024-26589, CVE-2024-26591, CVE-2024-26597, CVE-2024-26598, CVE-2024-26631, CVE-2024-26633 Package Information: https://launchpad.net/ubuntu/+source/linux/5.15.0-102.112 https://launchpad.net/ubuntu/+source/linux-azure/5.15.0-1060.69 https://launchpad.net/ubuntu/+source/linux-azure-fde/5.15.0-1060.69.1 https://launchpad.net/ubuntu/+source/linux-gcp/5.15.0-1055.63 https://launchpad.net/ubuntu/+source/linux-gke/5.15.0-1054.59 https://launchpad.net/ubuntu/+source/linux-gkeop/5.15.0-1040.46 https://launchpad.net/ubuntu/+source/linux-ibm/5.15.0-1050.53 https://launchpad.net/ubuntu/+source/linux-intel-iotg/5.15.0-1052.58 https://launchpad.net/ubuntu/+source/linux-kvm/5.15.0-1054.59 https://launchpad.net/ubuntu/+source/linux-lowlatency/5.15.0-102.112 https://launchpad.net/ubuntu/+source/linux-nvidia/5.15.0-1048.48 https://launchpad.net/ubuntu/+source/linux-oracle/5.15.0-1055.61 https://launchpad.net/ubuntu/+source/linux-raspi/5.15.0-1050.53 https://launchpad.net/ubuntu/+source/linux-azure-5.15/5.15.0-1060.69~20.04.1 https://launchpad.net/ubuntu/+source/linux-azure-fde-5.15/5.15.0-1060.69~20.04.1.1 https://launchpad.net/ubuntu/+source/linux-gcp-5.15/5.15.0-1055.63~20.04.1 https://launchpad.net/ubuntu/+source/linux-gkeop-5.15/5.15.0-1040.46~20.04.1 https://launchpad.net/ubuntu/+source/linux-hwe-5.15/5.15.0-102.112~20.04.1 https://launchpad.net/ubuntu/+source/linux-ibm-5.15/5.15.0-1050.53~20.04.1 https://launchpad.net/ubuntu/+source/linux-intel-iotg-5.15/5.15.0-1052.58~20.04.1 https://launchpad.net/ubuntu/+source/linux-lowlatency-hwe-5.15/5.15.0-102.112~20.04.1 https://launchpad.net/ubuntu/+source/linux-oracle-5.15/5.15.0-1055.61~20.04.1