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Sicherheit: Ausführen von Code mit höheren Privilegien in Linux (Aktualisierung)
Aktuelle Meldungen Distributionen
Name: Ausführen von Code mit höheren Privilegien in Linux (Aktualisierung)
ID: USN-3220-3
Distribution: Ubuntu
Plattformen: Ubuntu 16.04 LTS
Datum: Do, 9. März 2017, 07:38
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-2636
Applikationen: Linux
Update von: Ausführen von Code mit höheren Privilegien in Linux

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==========================================================================
Ubuntu Security Notice USN-3220-3
March 09, 2017

linux-aws 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-aws: Linux kernel for Amazon Web Services (AWS) systems

Details:

USN-3220-1 fixed a vulnerability in the Linux kernel. This update
provides the corresponding updates for the Linux kernel for Amazon
Web Services (AWS).

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-4.4.0-1007-aws 4.4.0-1007.16
linux-image-aws 4.4.0.1007.8

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-3220-3
http://www.ubuntu.com/usn/usn-3220-1
CVE-2017-2636

Package Information:
https://launchpad.net/ubuntu/+source/linux-aws/4.4.0-1007.16


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