Ubuntu 6923-1: Linux kernel Security Advisory Updates
Summary
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-aws: Linux kernel for Amazon Web Services (AWS) 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-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-gkeop-5.15: Linux kernel for Google Container Engine (GKE) systems - linux-hwe-5.15: Linux hardware enablement (HWE) kernel - linux-intel-iotg-5.15: Linux kernel for Intel IoT platforms - linux-lowlatency-hwe-5.15: Linux low latency kernel Details: Benedict Schlüter, Supraja Sridhara, Andrin Bertschi, and Shweta Shinde discovered that an untrusted hypervisor could inject malicious #VC interrupts and compromise the security guarantees of AMD SEV-SNP. This flaw is known as WeSee. A local attacker in control of the hypervisor could use this to expose sensitive information or possibly execute arbitrary code in the trusted execution environment. (CVE-2024-25742) 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: - TTY drivers; - SMB network file system; - Netfilter; - Bluetooth subsystem; (CVE-2024-26886, CVE-2024-26952, CVE-2023-52752, CVE-2024-27017, CVE-2024-36016)
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS linux-image-5.15.0-1049-gkeop 5.15.0-1049.56 linux-image-5.15.0-1061-intel-iotg 5.15.0-1061.67 linux-image-5.15.0-1061-nvidia 5.15.0-1061.62 linux-image-5.15.0-1061-nvidia-lowlatency 5.15.0-1061.62 linux-image-5.15.0-1063-gke 5.15.0-1063.69 linux-image-5.15.0-1063-kvm 5.15.0-1063.68 linux-image-5.15.0-1064-oracle 5.15.0-1064.70 linux-image-5.15.0-1065-gcp 5.15.0-1065.73 linux-image-5.15.0-1066-aws 5.15.0-1066.72 linux-image-5.15.0-117-generic 5.15.0-117.127 linux-image-5.15.0-117-generic-64k 5.15.0-117.127 linux-image-5.15.0-117-generic-lpae 5.15.0-117.127 linux-image-5.15.0-117-lowlatency 5.15.0-117.127 linux-image-5.15.0-117-lowlatency-64k 5.15.0-117.127 linux-image-aws-lts-22.04 5.15.0.1066.66 linux-image-gcp-lts-22.04 5.15.0.1065.61 linux-image-generic 5.15.0.117.117 linux-image-generic-64k 5.15.0.117.117 linux-image-generic-lpae 5.15.0.117.117 linux-image-gke 5.15.0.1063.62 linux-image-gke-5.15 5.15.0.1063.62 linux-image-gkeop 5.15.0.1049.48 linux-image-gkeop-5.15 5.15.0.1049.48 linux-image-intel-iotg 5.15.0.1061.61 linux-image-kvm 5.15.0.1063.59 linux-image-lowlatency 5.15.0.117.107 linux-image-lowlatency-64k 5.15.0.117.107 linux-image-nvidia 5.15.0.1061.61 linux-image-nvidia-lowlatency 5.15.0.1061.61 linux-image-oracle-lts-22.04 5.15.0.1064.60 linux-image-virtual 5.15.0.117.117 Ubuntu 20.04 LTS linux-image-5.15.0-1049-gkeop 5.15.0-1049.56~20.04.1 linux-image-5.15.0-1061-intel-iotg 5.15.0-1061.67~20.04.1 linux-image-5.15.0-117-generic 5.15.0-117.127~20.04.1 linux-image-5.15.0-117-generic-64k 5.15.0-117.127~20.04.1 linux-image-5.15.0-117-generic-lpae 5.15.0-117.127~20.04.1 linux-image-5.15.0-117-lowlatency 5.15.0-117.127~20.04.1 linux-image-5.15.0-117-lowlatency-64k 5.15.0-117.127~20.04.1 linux-image-generic-64k-hwe-20.04 5.15.0.117.127~20.04.1 linux-image-generic-hwe-20.04 5.15.0.117.127~20.04.1 linux-image-generic-lpae-hwe-20.04 5.15.0.117.127~20.04.1 linux-image-gkeop-5.15 5.15.0.1049.56~20.04.1 linux-image-intel 5.15.0.1061.67~20.04.1 linux-image-intel-iotg 5.15.0.1061.67~20.04.1 linux-image-lowlatency-64k-hwe-20.04 5.15.0.117.127~20.04.1 linux-image-lowlatency-hwe-20.04 5.15.0.117.127~20.04.1 linux-image-oem-20.04 5.15.0.117.127~20.04.1 linux-image-oem-20.04b 5.15.0.117.127~20.04.1 linux-image-oem-20.04c 5.15.0.117.127~20.04.1 linux-image-oem-20.04d 5.15.0.117.127~20.04.1 linux-image-virtual-hwe-20.04 5.15.0.117.127~20.04.1 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-6923-1
CVE-2023-52752, CVE-2024-25742, CVE-2024-26886, CVE-2024-26952,
CVE-2024-27017, CVE-2024-36016
Package Information
https://launchpad.net/ubuntu/+source/linux/5.15.0-117.127 https://launchpad.net/ubuntu/+source/linux-aws/5.15.0-1066.72 https://launchpad.net/ubuntu/+source/linux-gcp/5.15.0-1065.73 https://launchpad.net/ubuntu/+source/linux-gke/5.15.0-1063.69 https://launchpad.net/ubuntu/+source/linux-gkeop/5.15.0-1049.56 https://launchpad.net/ubuntu/+source/linux-intel-iotg/5.15.0-1061.67 https://launchpad.net/ubuntu/+source/linux-kvm/5.15.0-1063.68 https://launchpad.net/ubuntu/+source/linux-lowlatency/5.15.0-117.127 https://launchpad.net/ubuntu/+source/linux-nvidia/5.15.0-1061.62 https://launchpad.net/ubuntu/+source/linux-oracle/5.15.0-1064.70 https://launchpad.net/ubuntu/+source/linux-gkeop-5.15/5.15.0-1049.56~20.04.1 https://launchpad.net/ubuntu/+source/linux-hwe-5.15/5.15.0-117.127~20.04.1 https://launchpad.net/ubuntu/+source/linux-intel-iotg-5.15/5.15.0-1061.67~20.04.1 https://launchpad.net/ubuntu/+source/linux-lowlatency-hwe-5.15/5.15.0-117.127~20.04.1
