drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Ausführen von Code mit höheren Privilegien in Linux
Name: |
Ausführen von Code mit höheren Privilegien in Linux |
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ID: |
USN-3484-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 17.04 |
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Datum: |
Di, 21. November 2017, 09:30 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12188 |
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Applikationen: |
Linux |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-3484-1 November 21, 2017
linux, linux-raspi2 vulnerability ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 17.04
Summary:
The system could be made to crash or run programs as an administrator.
Software Description: - linux: Linux kernel - linux-raspi2: Linux kernel for Raspberry Pi 2
Details:
It was discovered that the KVM subsystem in the Linux kernel did not properly keep track of nested levels in guest page tables. A local attacker in a guest VM could use this to cause a denial of service (host OS crash) or possibly execute arbitrary code in the host OS.
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 17.04: linux-image-4.10.0-1021-raspi2 4.10.0-1021.24 linux-image-4.10.0-40-generic 4.10.0-40.44 linux-image-4.10.0-40-generic-lpae 4.10.0-40.44 linux-image-4.10.0-40-lowlatency 4.10.0-40.44 linux-image-generic 4.10.0.40.40 linux-image-generic-lpae 4.10.0.40.40 linux-image-lowlatency 4.10.0.40.40 linux-image-raspi2 4.10.0.1021.22
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://www.ubuntu.com/usn/usn-3484-1 CVE-2017-12188
Package Information: https://launchpad.net/ubuntu/+source/linux/4.10.0-40.44 https://launchpad.net/ubuntu/+source/linux-raspi2/4.10.0-1021.24
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