Home / mailings

PDF

[USN-1421-1] Linux kernel (Maverick backport) vulnerabilities

Posted on 12 April 2012
Ubuntu Security

==========================
==========================
========================
Ubuntu Security Notice USN-1421-1
April 12, 2012

linux-lts-backport-maverick vulnerabilities
==========================
==========================
========================

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

- Ubuntu 10.04 LTS

Summary:

Several security issues were fixed in the kernel.

Software Description:
- linux-lts-backport-maverick: Linux kernel backport from Maverick

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 B=C3=A4rwolf discovered a flaw in the KVM (kernel-based virtual
machine) subsystem of the Linux kernel. A local unprivileged user can cra=
sh
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 10.04 LTS:
linux-image-2.6.35-32-generic 2.6.35-32.68~lucid1
linux-image-2.6.35-32-generic-pae 2.6.35-32.68~lucid1
linux-image-2.6.35-32-server 2.6.35-32.68~lucid1
linux-image-2.6.35-32-virtual 2.6.35-32.68~lucid1

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

References:
http://www.ubuntu.com/usn/usn-1421-1
CVE-2011-4347, CVE-2012-0045, CVE-2012-1097, CVE-2012-1146

Package Information:
https://launchpad.net/ubuntu/+source/linux-lts-backport-maverick/2.6.35=
-32.68~lucid1


--------------090200000007050401050700
Content-Type: text/plain; charset=UTF-8;
name="Attached Message Part"
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
filename="Attached Message Part"


--------------090200000007050401050700--

------------

 

TOP