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-3220-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 16.04 LTS |
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Datum: |
Mi, 8. März 2017, 06:28 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-2636 |
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Applikationen: |
Linux |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-3220-1 March 08, 2017
linux, linux-gke, linux-raspi2, linux-snapdragon vulnerability ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 LTS
Summary:
The system could be made to crash or run programs as an administrator.
Software Description: - linux: Linux kernel - linux-gke: Linux kernel for Google Container Engine (GKE) systems - linux-raspi2: Linux kernel for Raspberry Pi 2 - linux-snapdragon: Linux kernel for Snapdragon Processors
Details:
Alexander Popov discovered that the N_HDLC line discipline implementation in the Linux kernel contained a double-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly gain administrative privileges.
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 16.04 LTS: linux-image-4.4.0-1005-gke 4.4.0-1005.6 linux-image-4.4.0-1046-raspi2 4.4.0-1046.53 linux-image-4.4.0-1050-snapdragon 4.4.0-1050.54 linux-image-4.4.0-66-generic 4.4.0-66.87 linux-image-4.4.0-66-generic-lpae 4.4.0-66.87 linux-image-4.4.0-66-lowlatency 4.4.0-66.87 linux-image-4.4.0-66-powerpc-e500mc 4.4.0-66.87 linux-image-4.4.0-66-powerpc-smp 4.4.0-66.87 linux-image-4.4.0-66-powerpc64-emb 4.4.0-66.87 linux-image-4.4.0-66-powerpc64-smp 4.4.0-66.87 linux-image-generic 4.4.0.66.70 linux-image-generic-lpae 4.4.0.66.70 linux-image-gke 4.4.0.1005.5 linux-image-lowlatency 4.4.0.66.70 linux-image-powerpc-e500mc 4.4.0.66.70 linux-image-powerpc-smp 4.4.0.66.70 linux-image-powerpc64-emb 4.4.0.66.70 linux-image-powerpc64-smp 4.4.0.66.70 linux-image-raspi2 4.4.0.1046.45 linux-image-snapdragon 4.4.0.1050.42
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: http://www.ubuntu.com/usn/usn-3220-1 CVE-2017-2636
Package Information: https://launchpad.net/ubuntu/+source/linux/4.4.0-66.87 https://launchpad.net/ubuntu/+source/linux-gke/4.4.0-1005.6 https://launchpad.net/ubuntu/+source/linux-raspi2/4.4.0-1046.53 https://launchpad.net/ubuntu/+source/linux-snapdragon/4.4.0-1050.54
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