drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Denial of Service in Linux
Name: |
Denial of Service in Linux |
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ID: |
USN-2911-1 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 12.04 LTS |
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Datum: |
Di, 23. Februar 2016, 09:01 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7550 |
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Applikationen: |
Linux |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-2911-1 February 22, 2016
linux vulnerability ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 LTS
Summary:
The system could be made to crash under certain conditions.
Software Description: - linux: Linux kernel
Details:
It was discovered that the Linux kernel keyring subsystem contained a race between read and revoke operations. A local attacker could use this to cause a denial of service (system crash).
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 12.04 LTS: linux-image-3.2.0-99-generic 3.2.0-99.139 linux-image-3.2.0-99-generic-pae 3.2.0-99.139 linux-image-3.2.0-99-highbank 3.2.0-99.139 linux-image-3.2.0-99-omap 3.2.0-99.139 linux-image-3.2.0-99-powerpc-smp 3.2.0-99.139 linux-image-3.2.0-99-powerpc64-smp 3.2.0-99.139 linux-image-3.2.0-99-virtual 3.2.0-99.139
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-2911-1 CVE-2015-7550
Package Information: https://launchpad.net/ubuntu/+source/linux/3.2.0-99.139
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