drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Preisgabe von Informationen in Linux
Name: |
Preisgabe von Informationen in Linux |
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ID: |
USN-4303-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 16.04 LTS |
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Datum: |
Di, 17. März 2020, 14:41 |
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Referenzen: |
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-2732 |
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Applikationen: |
Linux |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-4303-1 March 17, 2020
linux, linux-aws, linux-kvm vulnerability ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 LTS
Summary:
The system could be made to expose sensitive information.
Software Description: - linux: Linux kernel - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-kvm: Linux kernel for cloud environments
Details:
Paulo Bonzini discovered that the KVM hypervisor implementation in the Linux kernel could improperly let a nested (level 2) guest access the resources of a parent (level 1) guest in certain situations. An attacker could use this to expose sensitive information.
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 16.04 LTS: linux-image-4.4.0-1068-kvm 4.4.0-1068.75 linux-image-4.4.0-1104-aws 4.4.0-1104.115 linux-image-4.4.0-176-generic 4.4.0-176.206 linux-image-4.4.0-176-generic-lpae 4.4.0-176.206 linux-image-4.4.0-176-lowlatency 4.4.0-176.206 linux-image-4.4.0-176-powerpc-e500mc 4.4.0-176.206 linux-image-4.4.0-176-powerpc-smp 4.4.0-176.206 linux-image-4.4.0-176-powerpc64-emb 4.4.0-176.206 linux-image-4.4.0-176-powerpc64-smp 4.4.0-176.206 linux-image-aws 4.4.0.1104.108 linux-image-generic 4.4.0.176.184 linux-image-generic-lpae 4.4.0.176.184 linux-image-kvm 4.4.0.1068.68 linux-image-lowlatency 4.4.0.176.184 linux-image-powerpc-e500mc 4.4.0.176.184 linux-image-powerpc-smp 4.4.0.176.184 linux-image-powerpc64-emb 4.4.0.176.184 linux-image-powerpc64-smp 4.4.0.176.184 linux-image-virtual 4.4.0.176.184
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/4303-1 CVE-2020-2732
Package Information: https://launchpad.net/ubuntu/+source/linux/4.4.0-176.206 https://launchpad.net/ubuntu/+source/linux-aws/4.4.0-1104.115 https://launchpad.net/ubuntu/+source/linux-kvm/4.4.0-1068.75
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