[USN-1815-1] Linux kernel vulnerabilities

[John Johansen]

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Ubuntu Security Notice USN-1815-1
May 02, 2013

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

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

- Ubuntu 13.04

Summary:

Several security issues were fixed in the kernel.

Software Description:
- linux: Linux kernel

Details:

Andy Lutomirski discover an error in the Linux kernel's credential handling
on unix sockets. A local user could exploit this flaw to gain
administrative privileges. (CVE-2013-1979)

Andy Lutomirski discovered a privilege escalation in the Linux kernel's
user namespaces. A local user could exploit the flaw to gain administrative
privileges. (CVE-2013-1959)

Update instructions:

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

Ubuntu 13.04:
  linux-image-3.8.0-19-generic    3.8.0-19.30

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

References:
  http://www.ubuntu.com/usn/usn-1815-1
  CVE-2013-1959, CVE-2013-1979

Package Information:
  https://launchpad.net/ubuntu/+source/linux/3.8.0-19.30