drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Preisgabe von Informationen in Linux
Name: |
Preisgabe von Informationen in Linux |
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ID: |
USN-4713-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 20.10 |
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Datum: |
Do, 28. Januar 2021, 16:10 |
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Referenzen: |
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28374 |
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Applikationen: |
Linux |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-4713-1 January 28, 2021
linux-aws, linux-aws-5.4, linux-azure, linux-gcp, linux-kvm, linux-oracle, linux-raspi vulnerability ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 20.10 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS
Summary:
The system could allow unintended access to data in some environments.
Software Description: - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-azure: Linux kernel for Microsoft Azure Cloud systems - linux-kvm: Linux kernel for cloud environments - linux-oracle: Linux kernel for Oracle Cloud systems - linux-raspi: Linux kernel for Raspberry Pi (V8) systems - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-aws-5.4: Linux kernel for Amazon Web Services (AWS) systems
Details:
It was discovered that the LIO SCSI target implementation in the Linux kernel performed insufficient identifier checking in certain XCOPY requests. An attacker with access to at least one LUN in a multiple backstore environment could use this to expose sensitive information or modify data.
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 20.10: linux-image-5.8.0-1013-raspi 5.8.0-1013.16 linux-image-5.8.0-1013-raspi-nolpae 5.8.0-1013.16 linux-image-5.8.0-1016-kvm 5.8.0-1016.18 linux-image-5.8.0-1018-oracle 5.8.0-1018.19 linux-image-5.8.0-1020-azure 5.8.0-1020.22 linux-image-5.8.0-1021-aws 5.8.0-1021.23 linux-image-aws 5.8.0.1021.23 linux-image-azure 5.8.0.1020.20 linux-image-kvm 5.8.0.1016.18 linux-image-oracle 5.8.0.1018.18 linux-image-raspi 5.8.0.1013.16 linux-image-raspi-nolpae 5.8.0.1013.16
Ubuntu 20.04 LTS: linux-image-5.4.0-1032-kvm 5.4.0-1032.33 linux-image-5.4.0-1036-gcp 5.4.0-1036.39 linux-image-5.4.0-1037-aws 5.4.0-1037.39 linux-image-5.4.0-1037-oracle 5.4.0-1037.40 linux-image-5.4.0-1039-azure 5.4.0-1039.41 linux-image-aws 5.4.0.1037.38 linux-image-azure 5.4.0.1039.37 linux-image-gcp 5.4.0.1036.45 linux-image-kvm 5.4.0.1032.30 linux-image-oracle 5.4.0.1037.34
Ubuntu 18.04 LTS: linux-image-5.4.0-1037-aws 5.4.0-1037.39~18.04.1 linux-image-aws 5.4.0.1037.21
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/4713-1 CVE-2020-28374
Package Information: https://launchpad.net/ubuntu/+source/linux-aws/5.8.0-1021.23 https://launchpad.net/ubuntu/+source/linux-azure/5.8.0-1020.22 https://launchpad.net/ubuntu/+source/linux-kvm/5.8.0-1016.18 https://launchpad.net/ubuntu/+source/linux-oracle/5.8.0-1018.19 https://launchpad.net/ubuntu/+source/linux-raspi/5.8.0-1013.16 https://launchpad.net/ubuntu/+source/linux-aws/5.4.0-1037.39 https://launchpad.net/ubuntu/+source/linux-azure/5.4.0-1039.41 https://launchpad.net/ubuntu/+source/linux-gcp/5.4.0-1036.39 https://launchpad.net/ubuntu/+source/linux-kvm/5.4.0-1032.33 https://launchpad.net/ubuntu/+source/linux-oracle/5.4.0-1037.40 https://launchpad.net/ubuntu/+source/linux-aws-5.4/5.4.0-1037.39~18.04.1
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