drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Zwei Probleme in Linux
Name: |
Zwei Probleme in Linux |
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ID: |
USN-4325-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 18.04 LTS |
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Datum: |
Mi, 8. April 2020, 07:48 |
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Referenzen: |
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8428
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19046 |
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Applikationen: |
Linux |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-4325-1 April 07, 2020
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:
- Ubuntu 18.04 LTS
Summary:
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
Details:
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
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://usn.ubuntu.com/4325-1 CVE-2019-19046, CVE-2020-8428
Package Information: https://launchpad.net/ubuntu/+source/linux-azure/5.0.0-1036.38 https://launchpad.net/ubuntu/+source/linux-gcp/5.0.0-1034.35 https://launchpad.net/ubuntu/+source/linux-gke-5.0/5.0.0-1033.34 https://launchpad.net/ubuntu/+source/linux-oem-osp1/5.0.0-1047.52 https://launchpad.net/ubuntu/+source/linux-oracle-5.0/5.0.0-1014.19
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