========================================================================== Ubuntu Security Notice USN-5803-1 January 13, 2023
linux, linux-aws, linux-aws-5.15, linux-azure, linux-azure-5.15, linux-gcp, linux-gcp-5.15, linux-hwe-5.15, linux-ibm, linux-kvm, linux-oracle, linux-raspi, vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 22.10 - 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-gcp: Linux kernel for Google Cloud Platform (GCP) 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-azure: Linux kernel for Microsoft Azure Cloud systems - linux-raspi: Linux kernel for Raspberry Pi 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-hwe-5.15: Linux hardware enablement (HWE) kernel Details: Kyle Zeng discovered that the sysctl implementation in the Linux kernel contained a stack-based buffer overflow. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-4378) Tamás Koczka discovered that the Bluetooth L2CAP handshake implementation in the Linux kernel contained multiple use-after-free vulnerabilities. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-42896) It was discovered that the Xen netback driver in the Linux kernel did not properly handle packets structured in certain ways. An attacker in a guest VM could possibly use this to cause a denial of service (host NIC availability). (CVE-2022-3643) It was discovered that an integer overflow vulnerability existed in the Bluetooth subsystem in the Linux kernel. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2022-45934) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 22.10: linux-image-5.19.0-1015-gcp 5.19.0-1015.16 linux-image-5.19.0-1015-ibm 5.19.0-1015.16 linux-image-5.19.0-1015-oracle 5.19.0-1015.17 linux-image-5.19.0-1016-kvm 5.19.0-1016.17 linux-image-5.19.0-1017-aws 5.19.0-1017.18 linux-image-5.19.0-29-generic 5.19.0-29.30 linux-image-5.19.0-29-generic-64k 5.19.0-29.30 linux-image-5.19.0-29-generic-lpae 5.19.0-29.30 linux-image-aws 5.19.0.1017.14 linux-image-gcp 5.19.0.1015.12 linux-image-generic 5.19.0.29.26 linux-image-generic-64k 5.19.0.29.26 linux-image-generic-lpae 5.19.0.29.26 linux-image-ibm 5.19.0.1015.12 linux-image-kvm 5.19.0.1016.13 linux-image-oem-22.04 5.19.0.29.26 linux-image-oracle 5.19.0.1015.12 linux-image-virtual 5.19.0.29.26 Ubuntu 22.04 LTS: linux-image-5.15.0-1023-ibm 5.15.0-1023.26 linux-image-5.15.0-1023-raspi 5.15.0-1023.25 linux-image-5.15.0-1023-raspi-nolpae 5.15.0-1023.25 linux-image-5.15.0-1026-kvm 5.15.0-1026.31 linux-image-5.15.0-1027-gcp 5.15.0-1027.34 linux-image-5.15.0-1027-oracle 5.15.0-1027.33 linux-image-5.15.0-1028-aws 5.15.0-1028.32 linux-image-5.15.0-1031-azure 5.15.0-1031.38 linux-image-5.15.0-58-generic 5.15.0-58.64 linux-image-5.15.0-58-generic-64k 5.15.0-58.64 linux-image-5.15.0-58-generic-lpae 5.15.0-58.64 linux-image-aws 5.15.0.1028.26 linux-image-aws-lts-22.04 5.15.0.1028.26 linux-image-azure 5.15.0.1031.27 linux-image-azure-lts-22.04 5.15.0.1031.27 linux-image-gcp 5.15.0.1027.22 linux-image-generic 5.15.0.58.56 linux-image-generic-64k 5.15.0.58.56 linux-image-generic-64k-hwe-22.04 5.15.0.58.56 linux-image-generic-hwe-22.04 5.15.0.58.56 linux-image-generic-lpae 5.15.0.58.56 linux-image-generic-lpae-hwe-22.04 5.15.0.58.56 linux-image-ibm 5.15.0.1023.19 linux-image-kvm 5.15.0.1026.22 linux-image-oem-20.04 5.15.0.58.56 linux-image-oracle 5.15.0.1027.22 linux-image-raspi 5.15.0.1023.20 linux-image-raspi-nolpae 5.15.0.1023.20 linux-image-virtual 5.15.0.58.56 linux-image-virtual-hwe-22.04 5.15.0.58.56 Ubuntu 20.04 LTS: linux-image-5.15.0-1027-gcp 5.15.0-1027.34~20.04.1 linux-image-5.15.0-1028-aws 5.15.0-1028.32~20.04.1 linux-image-5.15.0-1031-azure 5.15.0-1031.38~20.04.1 linux-image-5.15.0-58-generic 5.15.0-58.64~20.04.1 linux-image-5.15.0-58-generic-64k 5.15.0-58.64~20.04.1 linux-image-5.15.0-58-generic-lpae 5.15.0-58.64~20.04.1 linux-image-aws 5.15.0.1028.32~20.04.17 linux-image-azure 5.15.0.1031.38~20.04.21 linux-image-gcp 5.15.0.1027.34~20.04.1 linux-image-generic-64k-hwe-20.04 5.15.0.58.64~20.04.24 linux-image-generic-hwe-20.04 5.15.0.58.64~20.04.24 linux-image-generic-lpae-hwe-20.04 5.15.0.58.64~20.04.24 linux-image-virtual-hwe-20.04 5.15.0.58.64~20.04.24 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-5803-1 CVE-2022-3643, CVE-2022-42896, CVE-2022-4378, CVE-2022-45934 Package Information: https://launchpad.net/ubuntu/+source/linux/5.19.0-29.30 https://launchpad.net/ubuntu/+source/linux-aws/5.19.0-1017.18 https://launchpad.net/ubuntu/+source/linux-gcp/5.19.0-1015.16 https://launchpad.net/ubuntu/+source/linux-ibm/5.19.0-1015.16 https://launchpad.net/ubuntu/+source/linux-kvm/5.19.0-1016.17 https://launchpad.net/ubuntu/+source/linux-oracle/5.19.0-1015.17 https://launchpad.net/ubuntu/+source/linux/5.15.0-58.64 https://launchpad.net/ubuntu/+source/linux-aws/5.15.0-1028.32 https://launchpad.net/ubuntu/+source/linux-azure/5.15.0-1031.38 https://launchpad.net/ubuntu/+source/linux-gcp/5.15.0-1027.34 https://launchpad.net/ubuntu/+source/linux-ibm/5.15.0-1023.26 https://launchpad.net/ubuntu/+source/linux-kvm/5.15.0-1026.31 https://launchpad.net/ubuntu/+source/linux-oracle/5.15.0-1027.33 https://launchpad.net/ubuntu/+source/linux-raspi/5.15.0-1023.25 https://launchpad.net/ubuntu/+source/linux-aws-5.15/5.15.0-1028.32~20.04.1 https://launchpad.net/ubuntu/+source/linux-azure-5.15/5.15.0-1031.38~20.04.1 https://launchpad.net/ubuntu/+source/linux-gcp-5.15/5.15.0-1027.34~20.04.1 https://launchpad.net/ubuntu/+source/linux-hwe-5.15/5.15.0-58.64~20.04.1
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