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Ubuntu Security Notice USN-6973-1

Ubuntu Security Notice 6973-1 - 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. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.

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==========================================================================Ubuntu Security Notice USN-6973-1August 21, 2024linux, linux-aws, linux-azure, linux-bluefield, linux-gcp, linux-gcp-5.4,linux-gkeop, linux-hwe-5.4, linux-ibm, linux-ibm-5.4, linux-kvm,linux-oracle, linux-oracle-5.4, linux-raspi, linux-xilinx-zynqmpvulnerabilities==========================================================================A security issue affects these releases of Ubuntu and its derivatives:- Ubuntu 20.04 LTS- Ubuntu 18.04 LTSSummary: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-bluefield: Linux kernel for NVIDIA BlueField platforms- linux-gcp: Linux kernel for Google Cloud Platform (GCP) 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-oracle: Linux kernel for Oracle Cloud systems- linux-raspi: Linux kernel for Raspberry Pi systems- linux-xilinx-zynqmp: Linux kernel for Xilinx ZynqMP processors- linux-gcp-5.4: Linux kernel for Google Cloud Platform (GCP) systems- linux-hwe-5.4: Linux hardware enablement (HWE) kernel- linux-ibm-5.4: Linux kernel for IBM cloud systems- linux-oracle-5.4: Linux kernel for Oracle Cloud systemsDetails:It was discovered that a race condition existed in the Bluetooth subsystemin the Linux kernel, leading to a null pointer dereference vulnerability. Aprivileged local attacker could use this to possibly cause a denial ofservice (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:   - SuperH RISC architecture;   - MMC subsystem;   - Network drivers;   - SCSI drivers;   - GFS2 file system;   - IPv4 networking;   - IPv6 networking;   - HD-audio driver;(CVE-2024-26830, CVE-2024-39484, CVE-2024-36901, CVE-2024-26929,CVE-2024-26921, CVE-2021-46926, CVE-2023-52629, CVE-2023-52760)Update instructions:The problem can be corrected by updating your system to the followingpackage versions:Ubuntu 20.04 LTS   linux-image-5.4.0-1050-xilinx-zynqmp  5.4.0-1050.54   linux-image-5.4.0-1078-ibm      5.4.0-1078.83   linux-image-5.4.0-1091-bluefield  5.4.0-1091.98   linux-image-5.4.0-1098-gkeop    5.4.0-1098.102   linux-image-5.4.0-1115-raspi    5.4.0-1115.127   linux-image-5.4.0-1119-kvm      5.4.0-1119.127   linux-image-5.4.0-1130-oracle   5.4.0-1130.139   linux-image-5.4.0-1131-aws      5.4.0-1131.141   linux-image-5.4.0-1135-gcp      5.4.0-1135.144   linux-image-5.4.0-1136-azure    5.4.0-1136.143   linux-image-5.4.0-193-generic   5.4.0-193.213   linux-image-5.4.0-193-generic-lpae  5.4.0-193.213   linux-image-5.4.0-193-lowlatency  5.4.0-193.213   linux-image-aws-lts-20.04       5.4.0.1131.128   linux-image-azure-lts-20.04     5.4.0.1136.130   linux-image-bluefield           5.4.0.1091.87   linux-image-gcp-lts-20.04       5.4.0.1135.137   linux-image-generic             5.4.0.193.191   linux-image-generic-lpae        5.4.0.193.191   linux-image-gkeop               5.4.0.1098.96   linux-image-gkeop-5.4           5.4.0.1098.96   linux-image-ibm-lts-20.04       5.4.0.1078.107   linux-image-kvm                 5.4.0.1119.115   linux-image-lowlatency          5.4.0.193.191   linux-image-oem                 5.4.0.193.191   linux-image-oem-osp1            5.4.0.193.191   linux-image-oracle-lts-20.04    5.4.0.1130.123   linux-image-raspi               5.4.0.1115.145   linux-image-raspi2              5.4.0.1115.145   linux-image-virtual             5.4.0.193.191   linux-image-xilinx-zynqmp       5.4.0.1050.50Ubuntu 18.04 LTS   linux-image-5.4.0-1078-ibm      5.4.0-1078.83~18.04.1                                   Available with Ubuntu Pro   linux-image-5.4.0-1130-oracle   5.4.0-1130.139~18.04.1                                   Available with Ubuntu Pro   linux-image-5.4.0-1135-gcp      5.4.0-1135.144~18.04.1                                   Available with Ubuntu Pro   linux-image-5.4.0-193-generic   5.4.0-193.213~18.04.1                                   Available with Ubuntu Pro   linux-image-5.4.0-193-lowlatency  5.4.0-193.213~18.04.1                                   Available with Ubuntu Pro   linux-image-gcp                 5.4.0.1135.144~18.04.1                                   Available with Ubuntu Pro   linux-image-generic-hwe-18.04   5.4.0.193.213~18.04.1                                   Available with Ubuntu Pro   linux-image-ibm                 5.4.0.1078.83~18.04.1                                   Available with Ubuntu Pro   linux-image-lowlatency-hwe-18.04  5.4.0.193.213~18.04.1                                   Available with Ubuntu Pro   linux-image-oem                 5.4.0.193.213~18.04.1                                   Available with Ubuntu Pro   linux-image-oem-osp1            5.4.0.193.213~18.04.1                                   Available with Ubuntu Pro   linux-image-oracle              5.4.0.1130.139~18.04.1                                   Available with Ubuntu Pro   linux-image-snapdragon-hwe-18.04  5.4.0.193.213~18.04.1                                   Available with Ubuntu Pro   linux-image-virtual-hwe-18.04   5.4.0.193.213~18.04.1                                   Available with Ubuntu ProAfter a standard system update you need to reboot your computer to makeall the necessary changes.ATTENTION: Due to an unavoidable ABI change the kernel updates havebeen given a new version number, which requires you to recompile andreinstall 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 performthis as well.References:   https://ubuntu.com/security/notices/USN-6973-1   CVE-2021-46926, CVE-2023-52629, CVE-2023-52760, CVE-2024-24860,   CVE-2024-26830, CVE-2024-26921, CVE-2024-26929, CVE-2024-36901,   CVE-2024-39484Package Information:   https://launchpad.net/ubuntu/+source/linux/5.4.0-193.213   https://launchpad.net/ubuntu/+source/linux-aws/5.4.0-1131.141   https://launchpad.net/ubuntu/+source/linux-azure/5.4.0-1136.143   https://launchpad.net/ubuntu/+source/linux-bluefield/5.4.0-1091.98   https://launchpad.net/ubuntu/+source/linux-gcp/5.4.0-1135.144   https://launchpad.net/ubuntu/+source/linux-gkeop/5.4.0-1098.102   https://launchpad.net/ubuntu/+source/linux-ibm/5.4.0-1078.83   https://launchpad.net/ubuntu/+source/linux-kvm/5.4.0-1119.127   https://launchpad.net/ubuntu/+source/linux-oracle/5.4.0-1130.139   https://launchpad.net/ubuntu/+source/linux-raspi/5.4.0-1115.127   https://launchpad.net/ubuntu/+source/linux-xilinx-zynqmp/5.4.0-1050.54

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