========================================================================== Ubuntu Security Notice USN-5418-1 May 12, 2022
linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-dell300x, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle, 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-dell300x: Linux kernel for Dell 300x platforms - 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-snapdragon: Linux kernel for Qualcomm Snapdragon processors - linux-aws-hwe: Linux kernel for Amazon Web Services (AWS-HWE) systems - linux-azure: Linux kernel for Microsoft Azure Cloud systems - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-hwe: Linux hardware enablement (HWE) kernel Details: Ke Sun, Alyssa Milburn, Henrique Kawakami, Emma Benoit, Igor Chervatyuk, Lisa Aichele, and Thais Moreira Hamasaki discovered that the Spectre Variant 2 mitigations for AMD processors on Linux were insufficient in some situations. A local attacker could possibly use this to expose sensitive information. (CVE-2021-26401) Demi Marie Obenour and Simon Gaiser discovered that several Xen para- virtualization device frontends did not properly restrict the access rights of device backends. An attacker could possibly use a malicious Xen backend to gain access to memory pages of a guest VM or cause a denial of service in the guest. (CVE-2022-23036, CVE-2022-23037, CVE-2022-23038, CVE-2022-23039, CVE-2022-23040, CVE-2022-23042) It was discovered that the USB Gadget file system interface 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-2022-24958) It was discovered that the USB gadget subsystem in the Linux kernel did not properly validate interface descriptor requests. An attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-25258) It was discovered that the Remote NDIS (RNDIS) USB gadget implementation in the Linux kernel did not properly validate the size of the RNDIS_MSG_SET command. An attacker could possibly use this to expose sensitive information (kernel memory). (CVE-2022-25375) It was discovered that the ST21NFCA NFC driver in the Linux kernel did not properly validate the size of certain data in EVT_TRANSACTION events. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-26490) It was discovered that the USB SR9700 ethernet device driver for the Linux kernel did not properly validate the length of requests from the device. A physically proximate attacker could possibly use this to expose sensitive information (kernel memory). (CVE-2022-26966) It was discovered that the Xilinx USB2 device gadget driver in the Linux kernel did not properly validate endpoint indices from the host. A physically proximate attacker could possibly use this to cause a denial of service (system crash). (CVE-2022-27223) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS: linux-image-4.15.0-1042-dell300x 4.15.0-1042.47 linux-image-4.15.0-1093-oracle 4.15.0-1093.102 linux-image-4.15.0-1114-kvm 4.15.0-1114.117 linux-image-4.15.0-1122-gcp 4.15.0-1122.136 linux-image-4.15.0-1127-snapdragon 4.15.0-1127.136 linux-image-4.15.0-1128-aws 4.15.0-1128.137 linux-image-4.15.0-1138-azure 4.15.0-1138.151 linux-image-4.15.0-177-generic 4.15.0-177.186 linux-image-4.15.0-177-generic-lpae 4.15.0-177.186 linux-image-4.15.0-177-lowlatency 4.15.0-177.186 linux-image-aws-lts-18.04 4.15.0.1128.131 linux-image-azure-lts-18.04 4.15.0.1138.111 linux-image-dell300x 4.15.0.1042.44 linux-image-gcp-lts-18.04 4.15.0.1122.141 linux-image-generic 4.15.0.177.166 linux-image-generic-lpae 4.15.0.177.166 linux-image-kvm 4.15.0.1114.110 linux-image-lowlatency 4.15.0.177.166 linux-image-oracle-lts-18.04 4.15.0.1093.103 linux-image-snapdragon 4.15.0.1127.130 linux-image-virtual 4.15.0.177.166 Ubuntu 16.04 ESM: linux-image-4.15.0-1093-oracle 4.15.0-1093.102~16.04.1 linux-image-4.15.0-1122-gcp 4.15.0-1122.136~16.04.1 linux-image-4.15.0-1128-aws-hwe 4.15.0-1128.137~16.04.1 linux-image-4.15.0-1138-azure 4.15.0-1138.151~16.04.1 linux-image-4.15.0-177-generic 4.15.0-177.186~16.04.1 linux-image-4.15.0-177-lowlatency 4.15.0-177.186~16.04.1 linux-image-aws-hwe 4.15.0.1128.118 linux-image-azure 4.15.0.1138.128 linux-image-gcp 4.15.0.1122.123 linux-image-generic-hwe-16.04 4.15.0.177.169 linux-image-gke 4.15.0.1122.123 linux-image-lowlatency-hwe-16.04 4.15.0.177.169 linux-image-oem 4.15.0.177.169 linux-image-oracle 4.15.0.1093.81 linux-image-virtual-hwe-16.04 4.15.0.177.169 Ubuntu 14.04 ESM: linux-image-4.15.0-1138-azure 4.15.0-1138.151~14.04.1 linux-image-azure 4.15.0.1138.110 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-5418-1 CVE-2021-26401, CVE-2022-23036, CVE-2022-23037, CVE-2022-23038, CVE-2022-23039, CVE-2022-23040, CVE-2022-23042, CVE-2022-24958, CVE-2022-25258, CVE-2022-25375, CVE-2022-26490, CVE-2022-26966, CVE-2022-27223 Package Information: https://launchpad.net/ubuntu/+source/linux/4.15.0-177.186 https://launchpad.net/ubuntu/+source/linux-aws/4.15.0-1128.137 https://launchpad.net/ubuntu/+source/linux-azure-4.15/4.15.0-1138.151 https://launchpad.net/ubuntu/+source/linux-dell300x/4.15.0-1042.47 https://launchpad.net/ubuntu/+source/linux-gcp-4.15/4.15.0-1122.136 https://launchpad.net/ubuntu/+source/linux-kvm/4.15.0-1114.117 https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1093.102 https://launchpad.net/ubuntu/+source/linux-snapdragon/4.15.0-1127.136
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