========================================================================== Ubuntu Security Notice USN-5515-1 July 13, 2022
linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 18.04 LTS - Ubuntu 16.04 ESM - Ubuntu 14.04 ESM 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-4.15: Linux kernel for Microsoft Azure Cloud systems - linux-gcp-4.15: Linux kernel for Google Cloud Platform (GCP) systems - linux-kvm: Linux kernel for cloud environments - linux-oracle: Linux kernel for Oracle Cloud systems - linux-raspi2: Linux kernel for Raspberry Pi systems - linux-snapdragon: Linux kernel for Qualcomm Snapdragon processors - linux-aws-hwe: Linux kernel for Amazon Web Services (AWS-HWE) systems - linux-hwe: Linux hardware enablement (HWE) kernel - linux-azure: Linux kernel for Microsoft Azure Cloud systems Details: Eric Biederman discovered that the cgroup process migration implementation in the Linux kernel did not perform permission checks correctly in some situations. A local attacker could possibly use this to gain administrative privileges. (CVE-2021-4197) Jann Horn discovered that the FUSE file system 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-2022-1011) Duoming Zhou discovered that the 6pack protocol implementation in the Linux kernel did not handle detach events properly in some situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-1198) Duoming Zhou discovered that the AX.25 amateur radio protocol implementation in the Linux kernel did not handle detach events properly in some situations. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-1199) Duoming Zhou discovered race conditions in the AX.25 amateur radio protocol implementation in the Linux kernel during device detach operations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-1204) Duoming Zhou discovered race conditions in the AX.25 amateur radio protocol implementation in the Linux kernel, leading to use-after-free vulnerabilities. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-1205) It was discovered that the PF_KEYv2 implementation in the Linux kernel did not properly initialize kernel memory in some situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2022-1353) It was discovered that the implementation of X.25 network protocols in the Linux kernel did not terminate link layer sessions properly. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-1516) Zheyu Ma discovered that the Silicon Motion SM712 framebuffer driver in the Linux kernel did not properly handle very small reads. A local attacker could use this to cause a denial of service (system crash). (CVE-2022-2380) It was discovered that the Microchip CAN BUS Analyzer interface implementation in the Linux kernel did not properly handle certain error conditions, leading to a double-free. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-28389) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS: linux-image-4.15.0-1102-oracle 4.15.0-1102.113 linux-image-4.15.0-1115-raspi2 4.15.0-1115.123 linux-image-4.15.0-1123-kvm 4.15.0-1123.128 linux-image-4.15.0-1131-gcp 4.15.0-1131.147 linux-image-4.15.0-1133-snapdragon 4.15.0-1133.143 linux-image-4.15.0-1137-aws 4.15.0-1137.148 linux-image-4.15.0-1146-azure 4.15.0-1146.161 linux-image-4.15.0-189-generic 4.15.0-189.200 linux-image-4.15.0-189-generic-lpae 4.15.0-189.200 linux-image-4.15.0-189-lowlatency 4.15.0-189.200 linux-image-aws-lts-18.04 4.15.0.1137.137 linux-image-azure-lts-18.04 4.15.0.1146.116 linux-image-gcp-lts-18.04 4.15.0.1131.147 linux-image-generic 4.15.0.189.174 linux-image-generic-lpae 4.15.0.189.174 linux-image-kvm 4.15.0.1123.116 linux-image-lowlatency 4.15.0.189.174 linux-image-oracle-lts-18.04 4.15.0.1102.109 linux-image-raspi2 4.15.0.1115.112 linux-image-snapdragon 4.15.0.1133.134 linux-image-virtual 4.15.0.189.174 Ubuntu 16.04 ESM: linux-image-4.15.0-1137-aws-hwe 4.15.0-1137.148~16.04.1 linux-image-4.15.0-189-generic 4.15.0-189.200~16.04.1 linux-image-4.15.0-189-lowlatency 4.15.0-189.200~16.04.1 linux-image-aws-hwe 4.15.0.1137.124 linux-image-generic-hwe-16.04 4.15.0.189.176 linux-image-lowlatency-hwe-16.04 4.15.0.189.176 linux-image-oem 4.15.0.189.176 linux-image-virtual-hwe-16.04 4.15.0.189.176 Ubuntu 14.04 ESM: linux-image-4.15.0-1146-azure 4.15.0-1146.161~14.04.1 linux-image-azure 4.15.0.1146.115 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-5515-1 CVE-2021-4197, CVE-2022-1011, CVE-2022-1198, CVE-2022-1199, CVE-2022-1204, CVE-2022-1205, CVE-2022-1353, CVE-2022-1516, CVE-2022-2380, CVE-2022-28389 Package Information: https://launchpad.net/ubuntu/+source/linux/4.15.0-189.200 https://launchpad.net/ubuntu/+source/linux-aws/4.15.0-1137.148 https://launchpad.net/ubuntu/+source/linux-azure-4.15/4.15.0-1146.161 https://launchpad.net/ubuntu/+source/linux-gcp-4.15/4.15.0-1131.147 https://launchpad.net/ubuntu/+source/linux-kvm/4.15.0-1123.128 https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1102.113 https://launchpad.net/ubuntu/+source/linux-raspi2/4.15.0-1115.123 https://launchpad.net/ubuntu/+source/linux-snapdragon/4.15.0-1133.143
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