USN-1815-1: Linux kernel vulnerabilities

Ubuntu Security Notice USN-1815-1

2nd May, 2013

linux vulnerabilities

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

  • Ubuntu 13.04


Several security issues were fixed in the kernel.

Software description

  • linux - Linux kernel


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 version:

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

To update your system, please follow these instructions:

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


CVE-2013-1959, CVE-2013-1979