drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Ausführen von Code mit höheren Privilegien in Linux (Aktualisierung)
Name: |
Ausführen von Code mit höheren Privilegien in Linux (Aktualisierung) |
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ID: |
USN-3221-2 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 16.04 LTS |
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Datum: |
Mi, 8. März 2017, 06:29 |
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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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Update von: |
Ausführen von Code mit höheren Privilegien in Linux |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-3221-2 March 08, 2017
linux-hwe 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-hwe: Linux hardware enablement (HWE) kernel for Ubuntu 16.04 LTS
Details:
USN-3221-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.10. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 16.10 for Ubuntu 16.04 LTS.
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. (CVE-2017-2636)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 16.04 LTS: linux-image-4.8.0-41-generic 4.8.0-41.44~16.04.1 linux-image-4.8.0-41-generic-lpae 4.8.0-41.44~16.04.1 linux-image-4.8.0-41-lowlatency 4.8.0-41.44~16.04.1 linux-image-4.8.0-41-powerpc-e500mc 4.8.0-41.44~16.04.1 linux-image-4.8.0-41-powerpc-smp 4.8.0-41.44~16.04.1 linux-image-4.8.0-41-powerpc64-emb 4.8.0-41.44~16.04.1 linux-image-generic-hwe-16.04 4.8.0.41.12 linux-image-generic-lpae-hwe-16.04 4.8.0.41.12 linux-image-lowlatency-hwe-16.04 4.8.0.41.12
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-3221-2 http://www.ubuntu.com/usn/usn-3221-1 CVE-2017-2636
Package Information: https://launchpad.net/ubuntu/+source/linux-hwe/4.8.0-41.44~16.04.1
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