drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Denial of Service in Linux
Name: |
Denial of Service in Linux |
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ID: |
USN-2807-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 14.04 LTS |
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Datum: |
Mi, 11. November 2015, 08:22 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5307 |
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Applikationen: |
Linux |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-2807-1 November 10, 2015
linux-lts-wily vulnerability ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.04 LTS
Summary:
The system could be made to crash under certain conditions.
Software Description: - linux-lts-wily: Linux hardware enablement kernel from Wily
Details:
Ben Serebrin discovered that the KVM hypervisor implementation in the Linux kernel did not properly catch Alignment Check exceptions. An attacker in a guest virtual machine could use this to cause a denial of service (system crash) in the host OS.
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 14.04 LTS: linux-image-4.2.0-18-generic 4.2.0-18.22~14.04.1 linux-image-4.2.0-18-generic-lpae 4.2.0-18.22~14.04.1 linux-image-4.2.0-18-lowlatency 4.2.0-18.22~14.04.1 linux-image-4.2.0-18-powerpc-e500mc 4.2.0-18.22~14.04.1 linux-image-4.2.0-18-powerpc-smp 4.2.0-18.22~14.04.1 linux-image-4.2.0-18-powerpc64-emb 4.2.0-18.22~14.04.1 linux-image-4.2.0-18-powerpc64-smp 4.2.0-18.22~14.04.1
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. If you use linux-restricted-modules, you have to update that package as well to get modules which work with the new kernel version. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-server, linux-powerpc), a standard system upgrade will automatically perform this as well.
References: http://www.ubuntu.com/usn/usn-2807-1 CVE-2015-5307
Package Information: https://launchpad.net/ubuntu/+source/linux-lts-wily/4.2.0-18.22~14.04.1
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