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Ubuntu Security Notice USN-1409-1

Ubuntu Security Notice USN-1409-1
Posted Mar 28, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1409-1 - 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. 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. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2011-3347, CVE-2011-4347, CVE-2011-3347, CVE-2011-4347
SHA-256 | 44da8fa5faaffba0654941eea0156b631ec7b6b0252ac9c3aadef25ef4617435

Ubuntu Security Notice USN-1409-1

Change Mirror Download
============================================================================
Ubuntu Security Notice USN-1409-1
March 27, 2012

linux-lts-backport-oneiric 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-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/3.0.0-17.30~lucid1
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