Ubuntu 6740-1: Linux kernel Security Advisory Updates
Summary
A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 18.04 LTS (Available with Ubuntu Pro) - Ubuntu 16.04 LTS (Available with Ubuntu Pro) - Ubuntu 14.04 LTS (Available with Ubuntu Pro) 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-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: Wei Chen discovered that a race condition existed in the TIPC protocol implementation in the Linux kernel, leading to a null pointer dereference vulnerability. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-1382) It was discovered that the virtio network implementation in the Linux kernel did not properly handle file references in the host, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory). (CVE-2023-1838) Jose Oliveira and Rodrigo Branco discovered that the Spectre Variant 2 mitigations with prctl syscall were insufficient in some situations. A local attacker could possibly use this to expose sensitive information. (CVE-2023-1998) Daniele Antonioli discovered that the Secure Simple Pairing and Secure Connections pairing in the Bluetooth protocol could allow an unauthenticated user to complete authentication without pairing credentials. A physically proximate attacker placed between two Bluetooth devices could use this to subsequently impersonate one of the paired devices. (CVE-2023-24023) shanzhulig discovered that the DRM subsystem in the Linux kernel contained a race condition when performing certain operation while handling driver unload, leading to 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-2023-51043) It was discovered that a race condition existed in the Bluetooth subsystem of the Linux kernel, leading to 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-2023-51779) It was discovered that the device mapper driver in the Linux kernel did not properly validate target size during certain memory allocations. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-52429, CVE-2024-23851) Zhenghan Wang discovered that the generic ID allocator implementation in the Linux kernel did not properly check for null bitmap when releasing IDs. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-6915) It was discovered that the SCTP protocol implementation in the Linux kernel contained a race condition when handling lock acquisition in certain situations. A local attacker could possibly use this to cause a denial of service (kernel deadlock). (CVE-2024-0639) 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: - Architecture specifics; - EDAC drivers; - Media drivers; - JFS file system; (CVE-2023-52603, CVE-2023-52464, CVE-2023-52600, CVE-2023-52445, CVE-2023-52451)
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS (Available with Ubuntu Pro): linux-image-4.15.0-1130-oracle 4.15.0-1130.141 linux-image-4.15.0-1151-kvm 4.15.0-1151.156 linux-image-4.15.0-1161-gcp 4.15.0-1161.178 linux-image-4.15.0-1167-aws 4.15.0-1167.180 linux-image-4.15.0-1176-azure 4.15.0-1176.191 linux-image-4.15.0-224-generic 4.15.0-224.236 linux-image-4.15.0-224-lowlatency 4.15.0-224.236 linux-image-aws-lts-18.04 4.15.0.1167.165 linux-image-azure-lts-18.04 4.15.0.1176.144 linux-image-gcp-lts-18.04 4.15.0.1161.174 linux-image-generic 4.15.0.224.208 linux-image-kvm 4.15.0.1151.142 linux-image-lowlatency 4.15.0.224.208 linux-image-oracle-lts-18.04 4.15.0.1130.135 linux-image-virtual 4.15.0.224.208 Ubuntu 16.04 LTS (Available with Ubuntu Pro): linux-image-4.15.0-1130-oracle 4.15.0-1130.141~16.04.1 linux-image-4.15.0-1161-gcp 4.15.0-1161.178~16.04.1 linux-image-4.15.0-1167-aws 4.15.0-1167.180~16.04.1 linux-image-4.15.0-1176-azure 4.15.0-1176.191~16.04.1 linux-image-4.15.0-224-generic 4.15.0-224.236~16.04.1 linux-image-4.15.0-224-lowlatency 4.15.0-224.236~16.04.1 linux-image-aws-hwe 4.15.0.1167.180~16.04.1 linux-image-azure 4.15.0.1176.191~16.04.1 linux-image-gcp 4.15.0.1161.178~16.04.1 linux-image-generic-hwe-16.04 4.15.0.224.236~16.04.1 linux-image-gke 4.15.0.1161.178~16.04.1 linux-image-lowlatency-hwe-16.04 4.15.0.224.236~16.04.1 linux-image-oem 4.15.0.224.236~16.04.1 linux-image-oracle 4.15.0.1130.141~16.04.1 linux-image-virtual-hwe-16.04 4.15.0.224.236~16.04.1 Ubuntu 14.04 LTS (Available with Ubuntu Pro): linux-image-4.15.0-1176-azure 4.15.0-1176.191~14.04.1 linux-image-azure 4.15.0.1176.191~14.04.1 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-6740-1
CVE-2023-1382, CVE-2023-1838, CVE-2023-1998, CVE-2023-24023,
CVE-2023-51043, CVE-2023-51779, CVE-2023-52429, CVE-2023-52445,
CVE-2023-52451, CVE-2023-52464, CVE-2023-52600, CVE-2023-52603,
CVE-2023-6915, CVE-2024-0639, CVE-2024-23851
Package Information
