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Sicherheit: Mehrere Probleme in Linux
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in Linux
ID: USN-1406-1
Distribution: Ubuntu
Plattformen: Ubuntu 11.04
Datum: Di, 27. März 2012, 15:09
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4347
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-0045
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-1097
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-1146
Applikationen: Linux

Originalnachricht

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==========================================================================
Ubuntu Security Notice USN-1406-1
March 27, 2012

linux vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 11.04

Summary:

Several security issues were fixed in the kernel.

Software Description:
- linux: Linux kernel

Details:

Sasha Levin discovered a flaw in the permission checking for device
assignments requested via the kvm ioctl in the Linux kernel. A local user
could use this flaw to crash the system causing a denial of service.
(CVE-2011-4347)

Stephan BÀrwolf discovered a flaw in the KVM (kernel-based virtual
machine) subsystem of the Linux kernel. A local unprivileged user can crash
use this flaw to crash VMs causing a deny of service. (CVE-2012-0045)

H. Peter Anvin reported a flaw in the Linux kernel that could crash the
system. A local user could exploit this flaw to crash the system.
(CVE-2012-1097)

A flaw was discovered in the Linux kernel's cgroups subset. A local
attacker could use this flaw to crash the system. (CVE-2012-1146)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 11.04:
linux-image-2.6.38-13-generic 2.6.38-13.57
linux-image-2.6.38-13-generic-pae 2.6.38-13.57
linux-image-2.6.38-13-omap 2.6.38-13.57
linux-image-2.6.38-13-powerpc 2.6.38-13.57
linux-image-2.6.38-13-powerpc-smp 2.6.38-13.57
linux-image-2.6.38-13-powerpc64-smp 2.6.38-13.57
linux-image-2.6.38-13-server 2.6.38-13.57
linux-image-2.6.38-13-versatile 2.6.38-13.57
linux-image-2.6.38-13-virtual 2.6.38-13.57

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-1406-1
CVE-2011-4347, CVE-2012-0045, CVE-2012-1097, CVE-2012-1146

Package Information:
https://launchpad.net/ubuntu/+source/linux/2.6.38-13.57


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