linux-azure, linux-gcp, linux-gke-5.0, linux-oem-osp1, linux-oracle-5.0 vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
Several security issues were fixed in the Linux kernel.
Software Description
It was discovered that the IPMI message handler implementation in the Linux kernel did not properly deallocate memory in certain situations. A local attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19046)
Al Viro discovered that the vfs layer 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 expose sensitive information (kernel memory). (CVE-2020-8428)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 18.04 LTS
linux-image-5.0.0-1014-oracle - 5.0.0-1014.19
linux-image-5.0.0-1033-gke - 5.0.0-1033.34
linux-image-5.0.0-1034-gcp - 5.0.0-1034.35
linux-image-5.0.0-1036-azure - 5.0.0-1036.38
linux-image-5.0.0-1047-oem-osp1 - 5.0.0-1047.52
linux-image-azure - 5.0.0.1036.47
linux-image-gcp - 5.0.0.1034.38
linux-image-gke-5.0 - 5.0.0.1033.21
linux-image-oem-osp1 - 5.0.0.1047.50
linux-image-oracle - 5.0.0.1014.15
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
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
Continue reading...
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.04 LTS
Several security issues were fixed in the Linux kernel.
Software Description
- linux-azure - Linux kernel for Microsoft Azure Cloud systems
- linux-gcp - Linux kernel for Google Cloud Platform (GCP) systems
- linux-gke-5.0 - Linux kernel for Google Container Engine (GKE) systems
- linux-oem-osp1 - Linux kernel for OEM processors
- linux-oracle-5.0 - Linux kernel for Oracle Cloud systems
It was discovered that the IPMI message handler implementation in the Linux kernel did not properly deallocate memory in certain situations. A local attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19046)
Al Viro discovered that the vfs layer 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 expose sensitive information (kernel memory). (CVE-2020-8428)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 18.04 LTS
linux-image-5.0.0-1014-oracle - 5.0.0-1014.19
linux-image-5.0.0-1033-gke - 5.0.0-1033.34
linux-image-5.0.0-1034-gcp - 5.0.0-1034.35
linux-image-5.0.0-1036-azure - 5.0.0-1036.38
linux-image-5.0.0-1047-oem-osp1 - 5.0.0-1047.52
linux-image-azure - 5.0.0.1036.47
linux-image-gcp - 5.0.0.1034.38
linux-image-gke-5.0 - 5.0.0.1033.21
linux-image-oem-osp1 - 5.0.0.1047.50
linux-image-oracle - 5.0.0.1014.15
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
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
Continue reading...
