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[USN-1409-1] Linux kernel (Oneiric backport) vulnerabilities

Posted on 27 March 2012
Ubuntu Security

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Ubuntu Security Notice USN-1409-1
March 27, 2012

linux-lts-backport-oneiric vulnerabilities
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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-oneiric: Linux kernel backport from Oneiric

Details:

Somnath Kotur discovered an error in the Linux kernel's VLAN (virtual lan=
)
and be2net drivers. An attacker on the local network could exploit this
flaw to cause a denial of service. (CVE-2011-3347)

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)

Update instructions:

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

Ubuntu 10.04 LTS:
linux-image-3.0.0-17-generic 3.0.0-17.30~lucid1
linux-image-3.0.0-17-generic-pae 3.0.0-17.30~lucid1
linux-image-3.0.0-17-server 3.0.0-17.30~lucid1
linux-image-3.0.0-17-virtual 3.0.0-17.30~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-1409-1
CVE-2011-3347, CVE-2011-4347

Package Information:
https://launchpad.net/ubuntu/+source/linux-lts-backport-oneiric/3.0.0-1=
7.30~lucid1


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